Progressive 412 Series Shocks

Item Number: 324870

4.8 stars 28 Reviews

Edit Vehicle


Product Description

Progressive Suspension

Progressive 412 Series Shocks

The 412 Series shocks are simply the best value shock on the market today. The 412's simple, durable design means they will be an improvement to your motorcycle's suspension performance for as long as you are riding it. The double-wall steel body construction with nitrogen charged, multi-staged velocity sensitive valving gives you smooth, consistent damping. A five position cam style preload adjuster lets you dial in your ride whether you're a light rider or heavy hitter. With multiple options, there is sure to be a 412 that's right for you and your bike.

  • Sold in pairs for machines originally equipped with two shocks
  • All steel double wall damper with multistage velocity sensitive damping
  • 5 position cam style preload adjuster
  • High pressure gas charged for consistent damping performance

Spec Details
Color Varies (make selection above)
Finish Varies (make selection above)
Length Varies (make selection above)
Material Varies (make selection above)
Position Rear
Quantity Varies (make selection above)
Ride Height Varies (make selection above)
Spring Rate Varies (make selection above)
Stock Length Varies (make selection above)

Vehicle Fitment

Fitment is guaranteed or your money back plus free return shipping. Don't waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.


  • K 75 1986-1995
  • K 75 C 1986-1990
  • K 75 RT 1990-1995
  • K 75 S 1987-1995
  • K 75 T 1986
  • K 100 1985-1986
  • K 100 LT 1987-1991
  • K 100 RS 1988-1989
  • K 100 RT 1984-1988
  • R 60/6 1974-1976
  • R 65 1979-1984
  • R 75/5 1973
  • R 75/6 1974-1976
  • R 75/7 1977
  • R 80/7 1978-1981
  • R 90 S 1974-1976
  • R 90/6 1974-1976
  • R 100 1979-1984


  • 860 GT 1975-1977
  • 900 GTS 1977-1979
  • 900 SS Desmo 1976-1982
  • Pantah 500 SL 1980-1983
  • Pantah 600 SL 1980-1984

Harley Davidson

  • FL 80 Electra Glide 1980
  • FLD Dyna Switchback 2012-2016
  • FLH 80 Electra Glide 1978-1984
  • FLH 80 Electra Glide Heritage 1981-1984
  • FLH 1200 Electra Glide 1973-1980
  • FLH Electra Glide 1973-1977, 1980-1985
  • FLHC Electra Glide Classic 1981-1982
  • FLHF Electra Glide 1974
  • FLHF Electra Glide Sport 1975
  • FLHR Electra Glide Road King 1994
  • FLHR Road King 1995-2021
  • FLHRC Road King Classic 2007-2013
  • FLHRCI Road King Classic 1998-2001, 2006
  • FLHRI Road King 1996-2006
  • FLHRS Road King Custom 2006-2007
  • FLHRSI Road King Custom 2006
  • FLHRXS Road King Special 2017-2021
  • FLHS 1200 Electra Glide Sport 1977
  • FLHS Electra Glide Sport 1981-1993
  • FLHT Electra Glide 1982-1984, 1986-1988
  • FLHT Electra Glide Standard 1995-2009, 2020-2021
  • FLHTC Electra Glide Classic 1983-2005, 2007-2013
  • FLHTC Liberty Electra Glide Classic Liberty 1986
  • FLHTCI Electra Glide Classic 1996-2006
  • FLHTCU Electra Glide Ultra Classic 2017-2019
  • FLHTCU Ultra Classic Electra Glide 1989-2016
  • FLHTCUI Ultra Classic Electra Glide 1995-2006
  • FLHTCUL Electra Glide Ultra Classic Low 2015-2016
  • FLHTI Electra Glide Standard 2003-2006
  • FLHTK Electra Glide Ultra Limited 2010-2021
  • FLHTKL Electra Glide Ultra Limited Low 2015-2019
  • FLHX Electra Glide Special 1984-1985
  • FLHX Street Glide 2006-2021
  • FLHXI Street Glide 2006
  • FLHXS Street Glide Special 2014-2021
  • FLT Tour Glide 1980-1984
  • FLTC Tour Glide Classic 1980-1991
  • FLTCU Ultra Classic Tour Glide 1989-1995
  • FLTCUI Ultra Classic Tour Glide 1996
  • FLTD Tour Glide 1983
  • FLTR Road Glide 1998-2004, 2007-2009
  • FLTRI Road Glide 1998-2006
  • FLTRK Road Glide Limited 2020-2021
  • FLTRU Road Glide Ultra 2011-2013, 2016-2019
  • FLTRX Road Glide 2015-2021
  • FLTRX Road Glide Custom 2010-2013
  • FLTRXS Road Glide Special 2015-2021
  • FX 1200 Super Glide 1973-1978
  • FXD Dyna Super Glide 1995-2005, 2007-2010
  • FXDB Dyna Daytona 1992
  • FXDB Dyna Street Bob 2007-2017
  • FXDB Dyna Sturgis 1991
  • FXDBI Dyna Street Bob 2006
  • FXDC Dyna Glide Custom 1992
  • FXDC Dyna Super Glide Custom 2005, 2007-2014
  • FXDCI Dyna Super Glide Custom 2005-2006
  • FXDF Dyna Fat Bob 2008-2017
  • FXDG Disc Glide 1983
  • FXDI35 35th Anniversary Dyna Super Glide 2006
  • FXDI Dyna Super Glide 2004-2006
  • FXDL Dyna Low Rider 1993-2005, 2007-2009, 2014-2017
  • FXDLI Dyna Low Rider 2004-2006
  • FXDLS Dyna Low Rider S 2016-2017
  • FXDS-CONV Dyna Convertible 1995-1998
  • FXDS-CONV Dyna Low Rider Convertible 1994
  • FXDS-CONV Dyna Super Glide Convertible 1999-2000
  • FXDWG Dyna Wide Glide 1993-2005, 2007-2008, 2010-2017
  • FXDWGI Dyna Wide Glide 2004-2006
  • FXDX Dyna Super Glide Sport 1999
  • FXEF 80 Super Glide Fat Bob 1979-1980
  • FXEF 1200 Super Glide Fat Bob 1979-1980
  • FXEF Super Glide Fat Bob 1985
  • FXLR Low Rider Custom 1987-1994
  • FXR Super Glide 1986-1994
  • FXR Super Glide II 1982-1983
  • FXRDG Disc Glide 1984
  • FXRS Low Glide 1982-1992
  • FXRS Super Glide II 1982-1983
  • FXRS-CONV Low Rider Convertible 1989-1993
  • FXRS-SP Low Rider Sport Edition 1987-1993
  • FXRT Sport Glide 1983-1992
  • FXS 80 Super Glide Low Rider 1979-1980
  • FXS 1200 Super Glide Low Rider 1977-1979
  • FXS Super Glide Low Rider 1981-1982
  • FXSB Low Rider 1984-1985
  • FXWG Wide Glide 1980-1986
  • K Sportster 1953
  • KH Sportster 1954-1957
  • KHK Sportster 1954-1956
  • KK Sportster 1953
  • SL Sportster 1959
  • SLH Sportster 1959
  • VRSCA V-Rod 2002-2006
  • VRSCB V-Rod 2005
  • VRSCD V-Rod Night Rod 2006
  • XL50 50th Anniversary Sportster 2007
  • XL883 Sportster 883 2004-2009
  • XL883C Sportster 883 Custom 1998-2010
  • XL883L Sportster 883 Low 2005-2010
  • XL883L Sportster SuperLow 2011-2019
  • XL883N Sportster Iron 883 2009-2021
  • XL883R Sportster 883R 2006-2010
  • XL883R Sportster Roadster 2011-2015
  • XL1200C Sportster 1200 Custom 1996-2019
  • XL1200CX Sportster Roadster 2016-2020
  • XL1200L Sportster 1200 Low 2006-2011
  • XL1200N Sportster 1200 Nightster 2007-2012
  • XL1200NS Sportster 1200 Iron 2018-2021
  • XL1200R Sportster 1200 Roadster 2004-2008
  • XL1200T Sportster SuperLow 2014-2018
  • XL1200V Sportster Seventy-Two 2012-2016
  • XL1200X Sportster Forty-Eight 2010-2021
  • XL1200XS Sportster Forty-Eight Special 2018-2019
  • XLCH1000 Sportster 1000 1970-1980
  • XLCH Sportster 1958-1969
  • XLCR1000 Sportster Cafe Racer 1977-1978
  • XLH883 Sportster 883 1986-2003
  • XLH883DLX Sportster 883 Deluxe 1986-1995
  • XLH883HUG Sportster 883 Hugger 1987-2003
  • XLH900 Sportster 900 1970-1971
  • XLH1000 Sportster Standard 1970-1978
  • XLH1100 Sportster 1100 1986-1987
  • XLH1200 Sportster 1200 1988-2003
  • XLH Sportster 1958, 1960-1969, 1979-1980, 1982-1983
  • XLS1000 Sportster Roadster 1979-1985
  • XLT1000 Sportster Touring 1980
  • XLX1000 Sportster 1000 1983-1985
  • XR1000 1983-1984
  • XR1200 2008-2010


  • CB650SC Nighthawk 650 1983-1985
  • CB750 Nighthawk 750 1991-1993, 1995-2003
  • CB900C 900 Custom 1980-1982
  • CB1000C Custom 1983
  • CM185T Twinstar 1979
  • CM200T Twinstar 1980
  • CX500 1978-1979
  • CX500C Custom 1980-1982
  • FT500 Ascot Single 1982-1983
  • GB500 Tourist Trophy 1989-1990
  • GL1000 Gold Wing 1975-1979
  • GL1100 Gold Wing 1980-1983
  • GL1100A Gold Wing Aspencade 1982-1983
  • GL1100I Gold Wing Interstate 1980-1983
  • GL1200 Gold Wing 1984-1987
  • GL1200A Gold Wing Aspencade 1984-1987
  • GL1200I Gold Wing Interstate 1984-1987
  • GL1200L Gold Wing Limited Edition 1985-1986
  • GL1200SE-I Gold Wing Aspencade 1986
  • GL1500 Gold Wing 1988-2000
  • GL1500A Gold Wing Aspencade 1991-2000
  • GL1500C Valkyrie 1997-2003
  • GL1500CD Valkyrie Deluxe 2001-2003
  • GL1500CF Valkyrie Interstate 1999-2001
  • GL1500CT Valkyrie Tourer 1997-2001
  • GL1500I Gold Wing Interstate 1991-1997
  • GL1500SE Gold Wing SE 1990-2000
  • VF500C V30 Magna 1984-1985
  • VF700C V40 Magna 1984-1986
  • VF750C2 V45 Magna Deluxe 1997-2000
  • VF750C V45 Magna 1982-1983, 1994-2003
  • VF750CD V45 Magna Deluxe 1995-1996
  • VF1100C V65 Magna 1983-1986
  • VT500C Shadow 500 1983-1984
  • VT500FT Ascot Twin 1983-1984
  • VT700C Shadow 700 1984-1987
  • VT750C Shadow 750 1983
  • VT750C Shadow 750 Aero 2004-2009
  • VT750CA Shadow 750 Aero ABS 2004-2009
  • VT750CD Shadow 750 A.C.E. 1998-2003
  • VT750DC Shadow 750 Spirit 2001-2003, 2005-2007
  • VT800C Shadow 800 1988
  • VT1100C2 Shadow 1100 A.C.E. 1995-1999
  • VT1100C2 Shadow 1100 Sabre 2000-2007
  • VT1100C Shadow 1100 1985-1996
  • VT1100C Shadow 1100 Spirit 1997-2007
  • VT1100CS Shadow 1100 A.C.E. 1998
  • VT1100D2 Shadow 1100 A.C.E. 1999
  • VTX1300C 2004-2009
  • VTX1300R 2005-2009
  • VTX1300S 2003-2007
  • VTX1300T 2008-2009
  • VTX1800C 2002-2007
  • VTX1800F 2005-2008
  • VTX1800N 2004-2008
  • VTX1800R 2002-2007
  • VTX1800S 2002-2006
  • VTX1800T 2007-2008


  • EN450A 454 LTD 1985-1990
  • H2 Mach IV 1972-1975
  • KH400 1976-1977
  • KH500 1976
  • KZ250D CSR 1981
  • KZ250L CSR Belt 1982
  • KZ305A CSR 1981-1982
  • KZ305B CSR Belt 1982
  • KZ440A LTD 1980-1983
  • KZ440B Standard 1980-1981
  • KZ550C LTD 1980-1983
  • KZ550F Spectre 1983
  • KZ650B 1977-1979
  • KZ650D SR 1978-1979
  • KZ650H CSR 1982-1983
  • KZ750B LTD Twin 1976-1979
  • KZ750G LTD Twin 1980
  • VN700A Vulcan 700 1985
  • VN750A Vulcan 750 1986-2006
  • VN1500A Vulcan 88 1987-1995
  • VN1500A Vulcan 1500 1996-1999
  • VN1500B Vulcan 88 SE 1987-1990
  • VN1500C Vulcan 1500 L 1996-1997
  • VN1500D Vulcan 1500 Classic 1996-1997
  • VN1500E Vulcan 1500 Classic 1998-2004
  • VN1500G Vulcan 1500 Nomad 1999-2001
  • VN1500J Vulcan 1500 Drifter 1999-2000
  • VN1500L Vulcan 1500 Nomad Fi 2000-2004
  • VN1500N Vulcan 1500 Classic Fi 2000-2008
  • VN1500P Vulcan 1500 Mean Streak 2002-2003
  • VN1500R Vulcan 1500 Drifter 2001-2005
  • VN1500T Vulcan 1500 Classic 2006
  • VN1600A Vulcan 1600 Classic 2003-2008
  • VN1600B Vulcan 1600 Mean Streak 2004-2008
  • VN1600D Vulcan 1600 Nomad 2005-2008
  • VN1600E Vulcan 1600 Classic 2006
  • VN1600F Vulcan 1600 Mean Streak 2006
  • W650 2000-2002
  • ZG1200A Voyager XII 1986
  • ZG1200B Voyager XII 1987-2003
  • ZL600A Eliminator 600 1986-1987
  • ZL900A Eliminator 900 1985-1986
  • ZL1000A Eliminator 1000 1987
  • ZN1100B LTD Shaft 1984-1985


  • GN250 1988
  • GN400T 1980-1982
  • GN400TX 1980-1981
  • GN400X 1980-1981
  • GN400XT 1980-1981
  • GN400XX 1980-1981
  • GS250T 1981
  • GS300L 1983
  • GS400 1977-1978
  • GS400X 1977-1978
  • GS425 1979
  • GS450E 1980-1983
  • GS550 1977-1981
  • GS650E 1981
  • GS650G 1981-1983
  • GS650GL 1981-1983
  • GS850G 1979-1983
  • GS1000G 1980-1981
  • GS1100G 1982-1983
  • GS1100GK 1982-1984
  • GT185 Adventurer 1973-1977
  • GT250 Hustler 1973-1977
  • GT380 Sebring 1972-1977
  • GT500 Titan 1976-1977
  • GT550 Indy 1972-1977
  • SP370 1978-1979
  • SP400 1980
  • T250 Hustler 1972
  • VS700GLEF Intruder 700 1986-1987
  • VS700GLEP Intruder 700 1986-1987
  • VS700GLF Intruder 700 1986-1987
  • VS700GLP Intruder 700 1986-1987
  • VS750GLP Intruder 750 1988-1991
  • VS800GL Boulevard S50 2005-2009
  • VS800GL Intruder 800 1992-2004
  • VS1400 Boulevard S83 2005-2008
  • VS1400GLF Intruder 1400 1987-2004
  • VS1400GLP Boulevard S83 2005-2009
  • VS1400GLP Intruder 1400 1987-2004
  • VX800 1990-1993
  • VZ1600 Boulevard M95 2005
  • VZ1600 Marauder 1600 2004


  • America 2002-2016
  • Bonneville SE 2001-2013
  • Bonneville T100 2002-2016
  • Rocket III 2004-2009
  • Rocket III Classic 2005
  • Rocket III Classic Tourer 2006-2007
  • Rocket III Roadster 2006-2016
  • Rocket III Touring 2006-2007, 2010-2017
  • Scrambler 2006-2017
  • Speedmaster 2003-2017
  • Thruxton 2004-2016


  • FZX700 Fazer 1986-1987
  • RD350 1973-1975
  • SR250 Exciter 1980-1982
  • SR500 1978-1981
  • VMX1200 VMAX 1985-1986, 1988-2007
  • XJ550 Maxim 1981-1983
  • XJ550R Seca 1981-1983
  • XJ650 Maxim 1980-1983
  • XJ650L Midnight Maxim 1981-1983
  • XJ650L Turbo Seca 1982-1983
  • XJ650R Seca 1982
  • XJ700X Maxim X 1985-1986
  • XJ750 Maxim 1982-1983
  • XJ750M Midnight Maxim 1983
  • XJ750R Seca 1981-1983
  • XJ900R Seca 1983
  • XJ1100 Maxim 1982
  • XS360 1977-1981
  • XS400 Maxim 1980-1981
  • XS400-2 Special II 1978-1979
  • XS400H Heritage Special 1981
  • XS400S Special 1980-1982
  • XS650 1975-1976
  • XS650-2 Special II 1978-1979
  • XS650S Heritage Special 1981-1983
  • XS650S Special 1979-1983
  • XS750S Special 1978-1979
  • XS850 1980-1981
  • XS850L Midnight Special 1980-1981
  • XS850S Special 1980-1981
  • XS1100 XS-Eleven 1978-1981
  • XS1100L XS-Eleven Midnight Special 1980-1981
  • XS1100S XS-Eleven Special 1979-1981
  • XV535 Virago 535 1987-1988, 1990, 1993-2000
  • XV535S Virago 535 Special 1994-1998
  • XV700 Virago 700 1984-1985
  • XV700C Virago 700 1986-1987
  • XV700S Virago 700 1986
  • XV750 Virago 750 1988-1997
  • XV1000 Virago 1000 1984-1985
  • XV1100 Virago 1100 1986-1999
  • XV1100S Virago 1100 Special 1996-1998
  • YX600 Radian 1986-1990

Customer Reviews

412 Shock

out of 5
3 stars

By on February 22, 2017

Not too bad for the price. Better than my old leaking Harley shocks.

5 stars
3 stars

Replaced leaky oem shocks

out of 5
5 stars

By on June 12, 2017

Only a little bit of riding before this review but I like them. These replaced stock air shocks on a 2007 Ultra that were leaking oil. Best price, very fast delivery and a quality part...can't beat it.

5 stars
5 stars

Progressive 412 shocks are awesome

out of 5
5 stars

By on January 23, 2018

I just got my 412 13" heavy dutys installed and could not be happier. A world of difference. Thanks for your help

5 stars
5 stars

Really good shock

out of 5
5 stars

By on May 1, 2018

I replaced the worn out OEM shocks on my 03 Kawasaki Vulcan 1600 Classic. I had to use the stock upper shock bushings and cut them down to make spacers for the top mount of the new shocks to kick them out from bike but besides that they where easy to install. I took a 220 mile trip with the wife and it was very smooth and no bottoming out problems at all. Great set of shocks so far.

5 stars
5 stars

Good shocks

out of 5
5 stars

By on July 12, 2018

As expected they are stout and not soft/mushy, but my Vmax at higher speeds needed the added handling, so I give them a thumbs up!

5 stars
4 stars

412 Shock

out of 5
5 stars

By on August 20, 2018

Work ok and plating on springs is superior to Harley.

5 stars
5 stars

Progressive 412 Series Shocks

out of 5
4 stars

By on April 19, 2019

A world better than stock air shox

1 star
1 star

Love my new Ride

out of 5
5 stars

By on July 26, 2019

Easy quick change. Its like a new bike. All the old noise and grinding gone. Very comfortable. Quick shipping and great price. Thank you.

5 stars
5 stars


out of 5
4 stars

By on December 17, 2019

I'm a retired mechanic/tech. Installed several sets for FL owners. They all liked them. Progressive Suspension has always been a standard for quality products.

3 stars
5 stars

Others recommend the less expensive YSS

out of 5
4 stars

By on March 26, 2020

At the time it was easier better service to find this progressive part for my 86 K75S. Not too much trouble to install. Bike definitely rides and handles better than before.

3 stars
5 stars

Very nice visit.

out of 5
5 stars

By on May 25, 2020

Huge difference. Replaced my factory 11 year old shocks and extended them 1". Rides great, total weight of 450 lbs. with passenger and gear and no bottoming out.

5 stars
5 stars

Happy customer

out of 5
5 stars

By on June 9, 2020

Excellent shocks! Keep up the good work.

5 stars
5 stars

Progressive 412 Shocks

out of 5
5 stars

By on June 22, 2020

Love the product! My ride is so much better now! Great bang for my buck!

5 stars
5 stars

My new parts store

out of 5
5 stars

By on July 13, 2020

Was exactly what I ordered.

5 stars
5 stars


out of 5
5 stars

By on September 30, 2020

The shocks went on very easily and work perfectly.

5 stars
5 stars

412 shocks on a 2000 Wing

out of 5
4 stars

By on December 8, 2020

Really had to work at getting lower mounting bolts to go in. Amazing difference in ride once installed, wish I had done this months ago!

5 stars
5 stars


out of 5
5 stars

By on January 13, 2021

Very happy. Will buy again.

5 stars
5 stars

Excellent, 2014 Road King

out of 5
5 stars

By on March 20, 2021

12.5 in. for 2014 Road King, Standard Spring. Perfect, can't get no better. A1. Lowered bike a little over an 1 in. Great, smooth ride. Would highly recommend. Air Shocks had to go. Set these Progressives on the #3 setting. Excellent!

5 stars
5 stars

Amazing ride quality

out of 5
5 stars

By on April 23, 2021

I had all afternoon scheduled to install. My brother-in-law helped me 45 minutes and went for a test ride! Unbelievable ride difference. The only frustration is why I had waited so long to get the progressive shocks on bike, amazing ride. Took my wife for a short ride (still not warm enough 4 her) she couldn’t believe how much better our bike rode! Awesome

5 stars
5 stars

Progressive 412 Shocks

out of 5
5 stars

By on May 3, 2021

High quality.

5 stars
5 stars

Great ride

out of 5
5 stars

By on June 11, 2021

Like night and day compared to the air shock on my Ultra.

5 stars
5 stars

Miracle Transformation!

out of 5
5 stars

By on June 10, 2021

The Progressive 412 13 inch. Shocks transformed my Iron 883 from a terrible riding and handling bike to a joy to ride bike. Better valving, more travel and a better ride height (I am 6'1). The shocks came in one day and are the best mod anyone can make on their Sportster!

5 stars
5 stars


out of 5
4 stars

By on June 25, 2021

Worked for my needs in lowing my bike. Did not make much difference on my ride other than closer to ground which I was wanting. That was why I lowered my Honda Magna being in my mid 80's helps getting on & off without dragging the seat.

5 stars
5 stars

Nice shocks

out of 5
5 stars

By on August 8, 2021

Fit good and is a very nice ride.

5 stars
5 stars

Great value and improved performance!

out of 5
5 stars

By on August 25, 2021

I replaced my original, crunchy, rear air shocks on my 1997 Road King with these Progressive shocks... And what a difference. Both comfort and handling improved significantly. I weigh 185 lbs and set the pre-load tensioner to the 3rd level. That gave me the stiffness and handling I like, even when riding 2 up.

5 stars
5 stars

Thanks parts giant.

out of 5
5 stars

By on August 27, 2021

Packed properly.

5 stars
5 stars

Great value and performance

out of 5
5 stars

By on September 6, 2021

I was extremely impressed with these shocks. My old air suspension was leaking and bottoming out on every little bump I came across. Until I put these shocks on, I also didn't realize how much my bike wallowed in turns and curves. Fitting these shocks completely changed how the bike rides and changed it back to a comfort touring bike. I completely recommend these shocks. I couldn't be happier with the quality of the shocks and the amazing service.

5 stars
5 stars

Best upgrade yet

out of 5
5 stars

By on September 23, 2021

This shock upgrade turned my K75 into a new bike. Price was reasonable and installation is easy.

5 stars
5 stars

Questions & Answers

  • Sell in pairs?

    By: Gene

    Yes, Progressive 412 Series Shocks are sold in pairs for machines that come the factory with two rear shocks.

    By: Staff

  • I have a 2006 Street Glide. How many inches of travel do these Progressive Shocks have?

    By: Andy

    Travel varies, depending on which shock length you select to install on your bike. In the case of the 2006 FLHX street glide shocks, the length of travel for each shocks is as follows:

    1.85" for the 11.5" shocks

    2.35" for the 12" shocks

    2.85" for the 12.5" shocks

    3.48" for the 13" shocks

    3.98" for the 13.5" shocks

    As you can see, the greater the shock's length, the more travel that's available for your bike. And don't forget to choose the correct spring rate to fit your particular riding needs. With Progressive's 412 shocks, heavy-duty springs are best suited for solo riders over 220lbs. If you ride two-up and/or with a full load of luggage at least 50% of the time, you'll certainly want to go with the heavy-duty springs to cover that extra weight.

    By: Staff

  • Are these sold in pairs?

    By: Eric

    For machines that are equipped with two shocks, they are indeed sold in pairs.

    By: Staff

  • 2001 Road King classic 5-speed. I want the same length shock as original. Would that be the 13" length?

    By: Doc

    Yes, according to the data I have from Progressive, the 2001 model year Road King Classic shipped from the factory with 13" length shocks, so you'd certainly want to order shocks from that are of the same length to avoid having to fool around with suspension geometry. Another important factor to consider is your weight, and whether or not you plan to travel heavy (two-up and/or with a full load of luggage). If you're over 220 lbs, and/or travel two-up/heavy at least 50% of the time, you'll want to choose the heavy-duty spring rate. Otherwise, the standard rate shocks will do an excellent job.

    By: Staff

  • I have a 05 Honda VTX 1800 N with a batwing fairing and saddle bags. I will be adding a trunk in the near future. What wold be thw best for my needs. I do ride 2 up aboit 40% of the time.

    By: Rick R.

    Progressive recommends that heavy-duty springs are to be used for solo riders over 220 lbs. Furthermore, if you ride two-up and/or with a full load of luggage at least 50% of the time, heavy-duty shocks are also recommended. Since you're two-up 40% of the time, you should certainly consider the additional weight of the batwing, saddlebags and the trunk you want to add later on. Just add those items to your own weight and, if that puts you at 220 lbs. or more, then you'd certainly be wise to go with a heavy-duty spring rate.

    Furthermore, we strongly recommend the installation of a matching set of fork springs to go with any Progressive Shocks. Should you choose the standard-rate rear shocks, then the standard rate Progressive Fork Springs will do the job nicely. If you go for the heavy-duty spring shocks, we recommend Progressive Heavy-Duty Fork Springs. In doing so, you'll be sure to balance the front and rear spring rates equally, which in turn, minimizes the back-and-forth wallow that's common anytime front or rear spring rates are mismatched. This becomes more noticeable the faster you go and with bigger bumps.

    By: Staff

  • I have a Kawasaki Voyager ZG 1200 XII with air shocks. Can I use those without air?

    By: Guest

    Yes, you can indeed use Progressive 412 shocks without air since. The shocks themselves actually have no provision for air, so there's no need to worry about hooking them up to that system.

    By: Staff

  • I have a 1993 Xlh883 needing shocks soon. I think the 412's would be perfect. Would 12.5's give me a little extra travel without buggering up the geometry?

    By: Guest

    The standard 1993 XLH883 comes with 13-1/2" shocks from the factory, so you'd actually be reducing the amount of travel available if you were to select the 12-1/2" long shocks. In addition, you would be changing the bike's steering geometry since you'd be lowering the rear end of the bike.

    While more suspension travel is nice, the best thing you can do is order springs that are of the correct rate for your weight and riding needs. That is to say, it's not the shock's length that effects travel as much as spring rate does. A properly sprung bike will rarely bottom out. If you spend most of your time riding solo and weigh less than 220 lbs - then a standard rate shock will do the job. If you travel two-up and/or with a full load of luggage on the bike at least fifty percent of the time, you'll want to order a set of heavy-rate springs.

    If changing the bike's geometry is of a concern, then you should order a set of 13-1/2" shocks so as not to make the bike handle differently. Again, the most important factor for resisting bottomg is to choose the correct spring rate for your needs. With that, regardless of the spring rate you choose, you'll find the bike will not bottom out.

    By: Staff

  • what is the stock shock length for a 2000 FXD?

    By: Joe

    The 2000 model year Harley-Davidson FXD shipped from the factory with shocks that measured 12.6" eye-to-eye.

    By: Staff

  • 2009 sportster XL1200c. I'm looking for a more comfortable smoother ride. Something to soften the bumps on my back. What would you recommend I go with ?

    By: Kenny

    There are two things that you can do to get the best possible ride for your needs. The first is getting the correct spring rate for your weight and riding needs. Heavy-duty rate springs are advised for solo riders that weight more 220lbs. Furthermore, if you ride two-up and/or with a full load of luggage at least 50% of the time, be sure to choose heavy-duty springs as well. Just about all of Progressive's shocks, including the 412 Series Shocks, are available in standard and heavy-duty spring rates.

    The second important factor, and this is especially true if you decide to go with heavy-duty shocks - is to match the fork springs to the shock. In this way, you're assured that both ends of the bike will react the same to irregularities in the road since progressive-rate springs act differently than the OEM straight-rate springs in the forks. In this way, the bike will wallow less over bumps and you'll notice it tends to track very true when hauling it around corners. Of course, the faster you go, the more noticeable these differences will be come.

    The difference between straight-rate and progressive-rate springs is that, with the former - no matter how much you compress the spring, the amount of force it exerts remains nearly the same. Progressive-rate springs, on the other hand, exert more force the more they're compressed. In other words, the bigger the bump, the better job the progressive springs do in quickly slowing those forces without the heavy jolt you'd feel with straight rate springs over the same bump.

    Be sure to choose the correct Progressive Standard Weight Fork Springs or Progressive Heavy-Duty Fork Springs from our website if you want to get the best ride possible.

    And, I did fail to mention - there's one solid rule about suspension that applies anytime you're comparing the stock item to an aftermarket part. That rule is that that you don't know what good suspension is until you've tried it. You will find that Progressive shocks are a significant improvement over the stock items, no matter where you ride or how you ride. And if you're looking for the best possible ride, we implore you to match the shocks with a set of Progressive fork springs as well.

    By: Staff

  • I have a stock 1969 sportster, its 13.5" eye to eye. I weigh 150Lbs. no riders, solo only

    will this 412 work and can I get it in all black. I am pretty sure the studs are 5/8th of an inch. Please give the the exact item # so i can order these. Thanks in Advance Bill

    By: bill

    Yes, the 412 shocks will indeed fit your 1969 Harley Sportster. Considering your weight and the fact that you'll be riding solo, the standard rate shocks will do the trick for you. Each set of Progressive 1969 Sportster shocks come with the appropriate bushings to fit your bike, so there's no need to order any additional parts. With regard to an all-black set up, unfortunately, the only shocks we have to fit your machine are available in chrome only.

    By: Staff

  • Will these fit on a 96 fxds-convertible

    is the top to wide for the bike or doesn't stick out far enough from the fender strut?

    By: Brent R

    Progressive's 412 shocks will indeed fit the FXDS Dyna Convertible. The tops won't be too wide to fit, either. We've sold quite a few of these to fit that particular bike and I'm not aware of any interference issues between the fender strut and the shocks. Nor has there been a problem with the shocks being too wide to fit. Everything you need to complete the installation is included in the box.

    By: Staff

  • What size spanner wrench do I need to adjust these shocks

    By: Trey

    There's no need to purchase any spanner wrench in order to adjust any of the Progressive shocks that we sell! They all come with one in the box that'll allow you to make the required adjustments. The included shock spanner wrench is specially shaped to fit the shocks you purchase which makes tuning it a snap!

    By: Staff

  • I have a 1999 Vulcan Nomad 1500 I would like to lower it down a couple of inches would a shorter shock be the answer to that and would it still right?

    By: Guest

    The OEM shocks for the 1999 Kawasaki Vulcan 1500 Nomad measure 13" eye-to-eye. Choosing any shock that's shorter would, obviously, lower your bike. With regard to have the bike still right, you should seriously also consider Progressive Fork Lowering Kit as well. In doing so, you retain the bike's stock steering geometry and the way the bike handles would not change at all. We always recommend that, whenever you lower the rear, you also lowers the front of the bike as well. Progressive's Fork Lowering Kit has everything you need to adjust for this in that kit.

    By: Staff

  • 2013 Suzuki s40


    I am about 5'8" and weigh 230 pounds. Would this shock be right for me? If not what would you recommend?

    By: Hugo

    In the case of the 2013 S40 Suzuki's stock suspension, you'll find that these shocks are s significant improvement over what came with the bike. Based upon the information you've provided, you'd want to get the shocks with heavy-duty springs.You'll find the bike rides a whole lot better with the heavy-duty shocks installed.

    By: Staff

  • What length shock is the 1983 flhtc stock ?

    By: Guest

    The 1983 FLHTC came with 13" long shocks from the factory.

    By: Staff

  • What is the stock shock length on a 2006 HD Road King Custom?

    I want to order a set of these shocks but not sure what size I need. Would like to go a little lower than stock...

    By: Justin

    The 2006 model year Harley FLHRC Road King Custom shipped from the factory with shocks that measure 13" at full length. Also, regardless of the shock length you choose, be sure to choose the correct spring rate for your riding needs. If you ride two-up at least 50% of the time, and/or with a full load of luggage, you will want to opt for heavy-duty shocks. This also holds true if you weigh over 220lbs. If those conditions don't apply to your needs, then the standard-rate shocks will more than be up to the task.

    By: Staff

  • I ride a 2014 street glide special. 95% of the time i ride solo. I was trying to see witch shock would work for me , The 412 or the 430 series. I did the front forks already.

    By: Guest

    So long as you weigh less than 220lbs, the standard rate shocks from either, the 412 or 430 series will be ideal for your needs. If you weigh more than that, go for the heavy-duty shocks.

    As for the differences between the 412 and 430 Street Glide Special shocks, the main difference between them, other than appearance, is the internal valving and the way you adjust spring preload. On the 412 shocks, you need to use the included shock spanner wrench to adjust preload. The 430 series shocks can have their preload adjusted by hand, which makes setting proper static sag very easy. The valving differences are quite significant. 430 shocks use a floating piston to separate the shock fluid from the pressurized gas chamber. In doing so, damping action is improved over the 412 shocks. And that's not to say the 412s are bad - they're great, especially when compared to stock. 412 shocks use a standard working piston instead of the floating design.

    No matter what you choose, and especially since you've updated the fork springs, you'll find that the bike handles a lot better than it did in stock configuration. It'll track true through the

    By: Staff

  • Would you know what stock rear shocks my 08harley nighters xl 1200n came with?

    By: Alex

    The 2008 XL1200N shipped from the factory with shocks that are 11" long.

    By: Staff

  • Factory shock length on 2003 Road King classic

    I plan on a heavy duty application cuz me and the woman are thickish. I've never liked air shock handling & they bottom out a lot. Recommendations???

    By: Todd

    The 2003 Road King Classic shipped with shocks measuring 13" long, but you can select shocks in any length that we have available to fit your machine without the worry of bottoming so long as you select the proper spring rate. If you're over 220lbs solo, and/or plan on riding two-up at least 50% of the time, you'll want to go with heavy-duty shocks. And, unless you want to lower your bike to make it easier to reach the ground when stopped, we recommend that you stay with the original shock length of 13". In this way, the bike's steering geometry will remain unchanged.

    One thing you'll want to strongly consider as well, in order to keep the bike balanced, is to replace the fork springs as well. With the front and rear end of the bike tuned the same, wallowing and bouncing about won't be a problem. We have a Progressive Heavy Duty Fork Spring Kit that'll take care of that without issue.

    So long as you were to go with heavy-duty rear shocks in stock length and HD fork springs, your risk of bottoming will be minimized. Compared to air shocks, the 412 series doesn't get harsh as you push through its stroke - they get firm, yes - but it's a nice, progressive push with no big hit near the end.

    By: Staff

  • I have a 2003 vtx 1300 S. The original shocks are 12" long and i want to lower the bike 2". would these shocks be a good fit for me

    By: James

    Unfortunately, the shortest shocks Progressive makes to fit the 2003 VTX1300S measure 11.5" - so they wouldn't be as low as you want. The reason Progressive doesn't offer shocks that are shorter than that is due to clearance issues. That is to say, all of the shocks they sell won't cause the wheel to rub against the rear fender, or any other part of the bike, if the shocks were to bottom out.

    Still, while half-an-inch may not sound like much, the difference is noticeable. Furthermore, if you were to combine that with a set of Progressive Lowered Fork Springs, you may find the bike to be more of your liking.

    By: Staff

  • Whats the weight limitation?

    Riding over 400# or what which recommend for heavy riders?

    By: Yb

    There's really no limitation, per se, but you'd certainly want to go with a set of shocks with a heavy-duty spring rate. This is due to the fact that Progressive recommends heavy-duty springs for solo riders over 220 lbs, or those that frequently ride two-up and/or with a full load of luggage.

    Furthermore, you should strongly consider upgrading to a set of Progressive heavy-duty fork springs as well. In this way, the bike is balanced front, and rear. For your needs, this would certainly be better than the stock springs that come with any bike these items fit.

    By: Staff

  • Are these shocks adjustable and if so, how do they adjust?

    By: Dragonfly

    Progressive's 412 shocks have a five-position preload adjustment so you can set your bike's static sag. This is done using the included C-spanner wrench. Compression and rebound circuits are not adjustable.

    By: Staff

  • I am replacing OEM Air shocks, I do not want to lower my 2007 Street glide. Will these keep the same height?

    By: Mark

    Not yet answered.

  • what size of the 412 series should I get for my 750 nighthawk? I weight around 170 pounds

    By: gaspar

    So long as you're riding solo at least 50% of the time, your best bet would be the 13" long Nighthawk 750 shocks with standard duty springs. Heavy duty springs are recommended for those that weigh 220lbs. or more and/or those that travel two-up and/or with a full load of luggage at least 50% of the time.

    By: Staff

  • Will these fit a '98 Honda Valkyrie CT ?

    By: John

    Yes, they absolutely will. Simply choose the 1998 Honda GL1500CT Valkyrie Tourer from our fit guide and we'll get the correct shocks on their way to you. For reference, the OEM shocks on that bike measure 13 inches long. If you're looking to retain the original ride height, be sure to choose that length of shock.

    By: Staff

  • 2004 roadster I want to lower for my wife factory shocks are 13" I believe what would u recommend?

    By: Chad

    That's correct, the 2004 Sportster 1200 Roadster shipped with 13" long shocks as stock. So, anything shorter than that is certainly going to help you out with getting the rear end closer to the ground.

    The important thing to consider is spring rate. If you plan on riding two-up at least 50% of the time, or weigh more than 220 lbs. yourself, then go with the heavy-duty springs. Otherwise, choose the standard spring rate and, while it won't be ideal when riding two-up, it'll certainly be a much better ride than the original Sportster Roadster suspension!

    By: Staff

  • I have a 2015 street glide and want to lower it 2 inches will the 11.5" progressive 412 work for me.

    By: Matt

    In the case of the 2015 FLHX, it shipped from the factory with 12" long shocks, so the 11.5" shocks would only take a half inch out of the bike's height.The reason Progressive only offers shocks down to that length is because it's the shortest they can offer without risking the rear tire rubbing on the inside of the fender. That is to say, any shorter than that, and you run the risk of ruining the rear tire pretty quickly. While that may not sound like much, it may feel like quite a big difference.

    By: Staff

  • I have a 2002 honda vtx1800 c. The stock shocks are bone jarring going over bumps no matter what the spring pre load is set at. I would like to find some shocks that will give a more cushy ride, I am 260 lbs. with a bad back. As it sits now the eye to eye measurement is 11 and 3/4 inches, what would you recommend ? I ride solo with no fairing or saddle bags, etc.

    By: Don S.

    For your size, you'll certainly want to to use a set of heavy-duty shocks as they're specifically recommended for solo riders over 220lbs. As far as length is concerned, that's not nearly as important as spring rate - but it certainly wouldn't hurt to go with the longer shocks. That is to say, whatever length you choose, so long as you go with the heavy-duty spring rate, you'll find these to be a significant improvement in bottoming-resistance when compared to the OEM VTX1800 shocks.

    By: Staff

  • What is the ride difference between standard and heavy duty? I'd like a comfortable ride.

    By: Guest

    The different spring rates on offer are not so much about ride quality alone, but rather, ride quality based upon the rider's weight. It's an often overlooked aspect of suspension - a bike will perform best, and be the most comfortable to ride, when spring rates are matched to the rider's needs.

    If you spend most of your time riding solo, and weigh less than 220lbs, choose the standard rate springs as those will provide the mostc comfortable ride, most of the time, for you.

    If you ride two-up at least half the time, and/or with a full load of luggage - or weigh more than 220lbs yourself, choose heavy-duty shocks as those will provide a smooth ride without the worry of harsh bottoming. Plus, the bike will feel more sure-footed and won't wallow as much through the corners. And, if you do go with heavy-duty shocks, take care of the front end with a set of Progressive Heavy-Duty fork springs.

    The stock forks forks springs are generally a good match for standard duty shocks, but if you go with heavy-duty shocks, swapping out fork springs will give you the most comfortable, and confident ride you can find!

    By: Staff

  • What size length for an 03 ElectraGlide Classic FLHTCI (Always ride two up)

    By: Dorrel

    Shock length isn't as critical to bottoming resistance as the spring rate you choose. If you're riding two-up, you'll want to get a set of heavy-duty shocks. The shock length, on the other hand, is really down to preference. If you don't have a problem getting your feet down, we recommend that you stay with the stock length so as not to fuss with the bike's steering geometry. In the case of the '03 Electra Glide Classic's shock length, they came from the factory with 13" long shocks.

    By: Staff

  • Looking to replace 2008 Harley Ultra classic shocks. I am 275lbs. Louisiana roads suck. What do you recommend? They do not need to be air adjustable.

    By: Mike

    In your case, anything Progressive makes is going to be better than stock. Of this, I can promise you! The biggest factor for your needs is spring rate, and for that, you're going to need a set of shocks with a heavy-duty spring rate. Progressive recommends the heavy-duty rate for any solo rider over 220lbs. That alone, will provide a much better ride for your needs.

    And don't forget to look after the front end as well. A set of Progressive heavy-duty fork springs will provide for a totally balanced bike. That is, the front and rear will act more in unison when the road gets rough.

    By: Staff

  • I have a 2009 ultra classic. 3/4 of the time I ride solo, my wife loves to ride so combined we are 350lbs plus gear. I am 5'8" and would like to lower an inch to 1 1/2 inches. My shock measures 13" so what length do your recommend?

    By: Paul S.

    With regard to spring rate, if you're riding solo more often than not, go with the standard rate springs. The shocks alone, you'll find, will be a significant improvement over the stock units whether you're riding solo or two-up. With regard to shock length, you'll want to go with the 11-1/2" long shocks as that'll get you closest to the height that you want.

    Another thing you should consider, to get the maximum lowering amount possible without the risk of bottoming, is to match those shocks to a Progressive Fork Lowering Kit. With that, you'll get the best possible lowered ride for your bike since steering geometry won't be unaffected with a matched front end.

    By: Staff

  • Ride a 2005 FLHRSI Road King Custom. What length is my standard shock? Is 11/2 shock much more ride sacrifice than 12"? Ride solo weight 160 lbs.

    By: Guest

    The 2005 Harley Road King Custom OEM shocks measure 13" long when the bike rolled off the assembly line. Now, compared to stock, even at the 11-1/2" length, you'll find the rear end of the bike to be much improved. Plus, Progressive doesn't make a set of shocks in which you're going to have to worry about bottoming out - so no worries there!

    As far as spring rate is concerned, at your weight, standard rate shock will be ideal.

    And finally, one thing to consider would be lowering the front end of the bike to match the rear. You can do this, easily, with a Progressive Fork Lowering Kit for the FLRSI. Aside from improving the overall ride quality of the bike, front and rear - when the front is lowered in concert with the rear, the bike's handling qualities will remain the same since steering geometry won't change. We strongly encourage all riders concerned about changes in handling to also add a set of lowered fork springs to along along with the new shocks.

    By: Staff

  • Will these fit a 85 Honda Shadow VT700???

    Will these bolt right into a 1985 Honda Shadow VT700???

    By: Guest

    Yes, if you were to select the 1985 Honda VT700C Shadow 700 shocks from our fit guide, you'd receive the correct Progressive 412 Series shocks to bolt straight onto the '85 Shadow 700.

    By: Staff

  • Do you know what length shocks came on a 2006 Harley Davidson sportster 883 custom?.

    By: Hugh

    The OEM shock length for the 2006 Harley XL883C Custom is 11-1/2 inches.

    By: Staff

  • I am 6’4” tall and weigh 235 lbs. Do you recommend the standard or heavy duty Progressive 412 shocks for my 2003 Harley Davidson FXDWG?

    By: Steve

    For your needs, you'd want to go with a set of heavy-duty shocks. Progressive recommends heavy-duty rate springs for any solo rider over 220 lbs. With that set up, you'll find ride quality to be significantly better over the stock suspension components. And, while you're at it, you should consider matching the forks to the rear end of your bike for the best possible ride with a set of Progressive Heavy Duty fork springs. With the front and rear spring rates matched, you'll find the bike rides better than new!

    By: Staff

  • 1991 Honda Goldwing Interstate

    Is the $269 for two shocks? If so, then I guess the air shock adjustment will be no more, is that correct? Also, if you and your rider have a combined weight on 340-350 lbs should I consider a different shock?

    By: John P

    For machines that come from the factory with two shocks, Progressive sells their 412 shocks in pairs, So, you'd receive two shocks with your order. As to your second question, yes you will lose the air shock adjustment functionality if you were to install these shocks on your machine as they do not have a provision for working with that system.

    As far as weight is concerned, the heavy-duty spring rate shocks are the way to go for your particular riding needs. In fact, that's all Progressive offers to fit the Gold Wing Interstate. I can tell you, however, that even though you lose the air ride adjustment, you will find the rear end of the bike significantly improved upon the installation of these shocks, especially at the loadout you're referring to. After your first ride, yu'll wonder why you didn't install them sooner!

    By: Staff

  • I just purchased a 412 series shock 11.5. I weigh 165 lbs. What would be my best setting?

    My wife weighs 130 lbs but does not ride very often. What setting do I use when she rides? Thanks

    By: Harold C

    Progressive standard spring rates are recommended for riders solo up to about 220 lbs. If you ride more than 50% of the time with a passenger heavy duty spring rate is recommended. As far as the preload adjustment is concerned for your weight at 165 you would be more to the low end on the preload. Normally there is 4-5 steps for adjustment you would want to be on 1 or 2 for your weight. With a passenger you may want to bump it up to 3 or 4 depending on your comfort level after riding. It may take some trial and error to find your exact settings as what may be comfortable for one rider may not suit the next.

    By: Staff

  • Do they come with the bushing for my honda valkyrie?

    By: Michael

    All Progressive shocks come with the requisite hardware to fit them to any machine you select from our fit guide. You needn't purchase any additional parts to fit them to any bike we have in our compatibility list.

    By: Staff

  • What is the stock shock length for a 2007 Dyna Wide Glide?

    By: Jason S.

    The 2007 FXDWG Dyna Wide Glide rolled off the assembly line with 12.6" long shocks.

    By: Staff

  • 2010 Ultra Classic. I'm 180 the wife about 140 but rarely rides with. What's the lowest I can go and not bottom out or hit the tire with the fender?

    By: Rich

    All Progressive 412 shocks, regardless of the length you choose, will not allow the stock rear tire to come into contact with the rear fender. These shocks are specifically engineered for a worry-free installation.

    Based upon your weight and occasional two-up riding, we recommend that you go with the standard rate shocks, again - in any length, to fit your machine.

    By: Staff

  • will your system work on a 1998 vulcan 1500 classic?

    I just have a small winshield and leather bags, BUT I'm a big guy, my Lovely is also, we are prolly way over cycles weight limit, when she's with. otherwise its just me.

    By: Frank

    If your bike currently has the OEM shocks on it, and you were to choose the heavy-duty spring rate from our fit guide, I can tell you that these shocks will be a great improvement over the original shocks! If you're riding around on a stock bike, you'll wonder why you didn't put these shocks on sooner!

    By: Staff

  • I have a 2006 Triumph Bonneville T100, what shock length do I need. I weigh about 240.

    I understand I need heavy duty springs I just use this bike for everyday around town driving or a short run trough the countryside, some roads with potholes but not to bad.

    By: Peter

    The stock length shocks on that bike measure 13-1/2" - so you'd want to retain that length unless you were really wanted to lower the rear end of the bike. Generally speaking, shock length as little to do with the bottoming - so long as the correct spring has been installed. With a heavy-duty rated spring on a 13-1/2" shock, you can expect a significantly improved ride on your bike on short runs or long runs!

    By: Staff

  • I bobbed an 88 Sportster 883Deluxe, I have a New 82 FXWG Fork and 16x3 front wheel, how will the 412 series work in this combo, I ride solo & under 220# in cold weather gear

    By: Wingman

    Ah, you've got a funky front end there, sure sounds cool!

    As far as the correct shock length, well - that's difficult to say. So long as you like the way the bike turns, then you'd want to get shocks that are of the same length. If it needs to speed up a bit, go longer than stock - if the opposite is preferred, go shorter than stock. Stock shocks on '88 Sportsters measured 12-1/2" long.

    For spring rate, based upon your information, go with standard rate springs.

    Other than that, as far as the shocks fitting, that won't be an issue. You will find that, no matter what length you choose, the rear end will feel like it holds the road much better than it did with the stock kit!

    By: Staff

  • I have a 2006 harley street glide.What is stock replacement length and what should I get.I am 5'8" tall 155 lbs

    By: warren c

    2006 Street Glides were fitted with 13" long shocks at the factory.

    As far as spring rate goes, if you're riding solo at least 50% of the time, the standard spring rate will do well for your needs. Heavy-duty shocks are recommended for riders over 220 lbs., or those that ride with a full load out of gear and/or a passenger at least 50% of the time.

    By: Staff

  • I have a 1980 xlh 1000 I want to lower the rear as much as possible without running into problems or rubbing what would be a good recommendation for length

    By: Maverick

    All Progressive shocks are built to work on any machine with a stock size tire without running the risk of the tire rubbing against the inside of the fender.

    That is to say, no matter what shock length you choose from our fit guide, you don't have to worry about the tire rubbing, so long as the tire size is the same as stock.

    By: Staff

  • I have a 2015 883 iron I'm wanting to lower it some and was thinking about the 11' 412 over the burley slammers my wife rides here and there we are about 260ish combined weight do you think this would be an issue

    By: Rooster

    If you're using an 11" Progressive, bottoming, whether riding solo or two-up, won't be an issue as all Progressive shocks are designed to work with an otherwise stock bike without having to worry about that. And that goes for every length of shock we have to fit your bike.

    Next up comes the question of spring rate. If you expect to ride two-up at least 50% of the time (doesn't sound like it with "here and there") weigh 220 lbs.+ on your own, and/or plan on riding with a full loadout of luggage at least 50% of the time, then you'd want to choose shocks with a heavy-duty spring rate. If not, go with the standard spring rate.

    I can say with full confidence that, no matter what length or spring rate you choose, these shocks will be a great improvement when compared to stock. You will certainly notice a difference!

    By: Staff

  • I have a 2003 Sportster 100th anniversary with stock rear shocks, when I ride and hit bumps sometimes it feels like I bottom out. Question is do I need to get a long shock to raise the rear end.

    When I ride and hit bumps sometimes it feels like I bottom out and I do ride with a passenger so I would need the heavy duty option.

    By: Jose

    You wouldn't necessarily need to go with shocks that are longer than stock, but would certainly want to choose heavy-duty springs as that's the main determining factor when it comes to the risk of bottoming-out. With a proper spring rate, your bottoming problem won't be a problem anymore.

    By: Staff

  • What length shock do I need for a 2007 ultra classic flhtcu

    By: dominick

    The OEM shocks on the 2007 FLHTCU measured 13" long. If you're interested in keeping the bike at the stock setup, then choose the 13" shocks.

    By: Staff

  • What length rear shocks to replace factory installed on my 2010 HD Sportster 1200XL Custom

    By: Randy Mc.

    The 2010 Harley Sporstster XL1200C shipped from the Kansas factory with 11-1/2" long shocks on it. Mind you, aside from XL1200C shock length, be sure to choose the correct spring rate for your needs. If you're a solo rider at least 50% of the time and 220lbs or less, go with the standard rate shocks. If you're bigger than that, or ride with a passenger quite often, you'll want to get a set of Progressive Sportster shocks with heavy-duty springs.

    By: Staff

  • Do these come with the bushings?

    By: Chris

    If it's the bushings that go between the upper and lower shock mounts on your machine, then yes, they're indeed included. In fact, depending on what bike you're mounting the shock(s) onto, the kit may include a myriad of bushings to fit since one set of shocks may fit more than one machine.

    By: Staff