Progressive 444 Series Shocks

Item Number: 324944

$491.49$563.09

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888-575-6570

Product Description

Progressive Suspension

Progressive 444 Series Shocks

After more than a decade of ruling the roads with our road proven 440 Series shocks, Progressive has unveiled another breakthrough design. Dubbed Frequency Sensing Technology (FST) for its unique ability to dynamically adjust damping as you ride. The result is superior performance no matter the road conditions. A top mount threaded preload adjuster allows for fine tuning with a simple twist of the cap.

  • Sold in pairs for machines originally equipped with two shocks
  • Frequency Sensing Technology (FST) allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
  • Deflective disk valving
  • Adjust spring preload by hand with no special tools needed
  • Progressive rate spring
  • Lifetime Limited Manufacturer's Warranty
  • Made in the USA

Spec Details
Color Varies (make selection above)
Finish Varies (make selection above)
Length Varies (make selection above)
Quantity Pair
Spring Rate 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.

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 1973-1985
  • FLHC 80 Electra Glide Classic 1979-1980
  • FLHC Electra Glide Classic 1981-1982
  • FLHF Electra Glide 1974
  • FLHF Electra Glide Sport 1975
  • FLHR CVO Road King 2014
  • FLHR Electra Glide Road King 1994
  • FLHR Road King 1995-2016
  • FLHRC Road King Classic 2007-2013
  • FLHRCI Road King Classic 1998-2006
  • FLHRI Road King 1996-2006
  • FLHRS Road King Custom 2004-2007
  • FLHRSE3 CVO Road King 2007
  • FLHRSE4 CVO Road King 2008
  • FLHRSE5 CVO Road King 2013
  • FLHRSEI2 CVO Road King 2 2003
  • FLHRSEI CVO Road King 2002
  • FLHRSI Road King Custom 2004-2006
  • FLHS 80 Electra Glide Sport 1980
  • 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
  • FLHTC Electra Glide Classic 1983-2005, 2007-2013
  • FLHTC Liberty Electra Glide Classic Liberty 1986
  • FLHTCI Electra Glide Classic 1996-2006
  • FLHTCSE2 CVO Electra Glide 2005
  • FLHTCSE CVO Electra Glide 2004
  • FLHTCU Ultra Classic Electra Glide 1989-2016
  • FLHTCUI Ultra Classic Electra Glide 1995-2006
  • FLHTCUL Electra Glide Ultra Classic Low 2015-2016
  • FLHTCUSE2 CVO Ultra Classic Electra Glide 2007
  • FLHTCUSE3 CVO Ultra Classic Electra Glide 2008
  • FLHTCUSE4 CVO Ultra Classic Electra Glide 2009
  • FLHTCUSE5/BLK CVO Ultra Classic 2010
  • FLHTCUSE6 CVO Ultra Classic Electra Glide 2011
  • FLHTCUSE7 CVO Ultra Classic Electra Glide 2012
  • FLHTCUSE8 CVO Ultra Classic Electra Glide 2013
  • FLHTCUSE CVO Ultra Classic Electra Glide 2006
  • FLHTI Electra Glide Standard 2003-2006
  • FLHTK Electra Glide Ultra Limited 2010-2016
  • FLHTKL Electra Glide Ultra Limited Low 2015-2016
  • FLHTKSE CVO Electra Glide Ultra Limited 2014
  • FLHX Electra Glide Special 1984-1985
  • FLHX Street Glide 2006-2016
  • FLHXI Street Glide 2006
  • FLHXS Street Glide Special 2014-2016
  • FLHXSE2 CVO Street Glide 2011
  • FLHXSE3 CVO Street Glide 2012
  • FLHXSE CVO Street Glide 2010
  • FLT Tour Glide 1979-1984
  • FLTC Tour Glide Classic 1980-1991
  • FLTCU Ultra Classic Tour Glide 1989-1995
  • FLTCUI Ultra Classic Tour Glide 1996
  • FLTR Road Glide 1998-2002, 2007-2009
  • FLTRI Road Glide 1998-2006
  • FLTRSE3 CVO Road Glide 2009
  • FLTRSEI2 CVO Road Glide 2 2001
  • FLTRSEI CVO Road Glide 2000
  • FLTRU Road Glide Ultra 2011-2013, 2016
  • FLTRUSE CVO Road Glide Ultra 2011
  • FLTRX Road Glide 2015-2016
  • FLTRX Road Glide Custom 2010-2013
  • FLTRXS Road Glide Special 2015-2016
  • FLTRXSE2 CVO Road Glide Custom 2013
  • FLTRXSE CVO Road Glide Custom 2012
  • FX 1200 Super Glide 1973-1978
  • FXD Dyna Super Glide 1995-2005, 2007-2010
  • FXDB Dyna Daytona 1992
  • FXDB Dyna Street Bob 2007-2016
  • FXDB Dyna Sturgis 1991
  • FXDC Dyna Glide Custom 1992
  • FXDC Dyna Super Glide Custom 2005, 2007-2014
  • FXDF Dyna Fat Bob 2008-2016
  • FXDI35 35th Anniversary Dyna Super Glide 2006
  • FXDL Dyna Low Rider 1993-2005, 2007-2009, 2014-2016
  • 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, 2010-2016
  • FXDX Dyna Super Glide Sport 1999-2005
  • FXDXT Dyna Super Glide T-Sport 2001-2003
  • FXE Super Glide 1984
  • FXEF Super Glide Fat Bob 1985
  • FXLR Low Rider Custom 1987-1994
  • FXR Super Glide 1986-1994
  • FXR Super Glide II 1982-1983
  • FXRS Low Glide 1982-1992
  • FXRS-CONV Low Rider Convertible 1989-1993
  • FXRS-SP Low Rider Sport Edition 1987-1993
  • FXRT Sport Glide 1983-1992
  • FXSB Low Rider 1984-1985
  • FXWG Wide Glide 1980-1986
  • Sportster XLX 1983-1985
  • Sportster XLX-61 1984-1985
  • VRSCA V-Rod 2002-2006
  • VRSCAW V-Rod 2007-2010
  • VRSCB V-Rod 2005
  • VRSCD V-Rod Night Rod 2006-2008
  • VRSCDX V-Rod Night Rod Special 2007-2016
  • VRSCF V-Rod Muscle 2009-2016
  • VRSCX V-Rod 2007
  • XL50 50th Anniversary Sportster 2007
  • XL883 Sportster 883 2004-2009
  • XL883C Sportster 883 Custom 2004-2010
  • XL883L Sportster 883 Low 2005-2010
  • XL883L Sportster SuperLow 2011-2015
  • XL883N Sportster Iron 883 2009-2015
  • XL883R Sportster 883R 2006-2010
  • XL1200C Sportster 1200 Custom 1996-2015
  • XL1200L Sportster 1200 Low 2006-2011
  • XL1200N Sportster 1200 Nightster 2007-2012
  • XL1200R Sportster 1200 Roadster 2004-2008
  • XL1200T Sportster SuperLow 2014-2015
  • XL1200V Sportster Seventy-Two 2012-2015
  • XL1200X Sportster Forty-Eight 2010-2015
  • XLCH1000 Sportster 1000 1979
  • XLCR1000 Sportster Cafe Racer 1977-1978
  • XLH883 Sportster 883 1986, 1988-2003
  • XLH883DLX Sportster 883 Deluxe 1994-1995
  • XLH883HUG Sportster 883 Hugger 1987-1991
  • XLH1100 Sportster 1100 1986-1987
  • XLH1200 Sportster 1200 1988-2003
  • XLH Sportster 1979-1980, 1982-1984
  • XR1000 1983-1984
  • XR1200 2008-2010
  • XR1200X 2010-2012

Honda

  • GL1500C Valkyrie 1997-2003
  • GL1500CD Valkyrie Deluxe 2001-2003
  • GL1500CF Valkyrie Interstate 1999-2001
  • GL1500CT Valkyrie Tourer 1997-2001
  • 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
  • VT700C Shadow 700 1984-1987
  • VT750C2 Shadow 750 Spirit 2007
  • VT750C Shadow 750 1983
  • VT750C Shadow 750 A.C.E. 1998-2001
  • 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 1998-2007
  • 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

Kawasaki

  • VN700A Vulcan 700 1985
  • VN750A Vulcan 750 1986-2006
  • 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
  • VN1500T Vulcan 1500 Classic 2006
  • VN1600A Vulcan 1600 Classic 2003-2008
  • VN1600B Vulcan 1600 Mean Streak 2004-2008
  • VN1600F Vulcan 1600 Mean Streak 2006
  • ZL600A Eliminator 600 1986-1987
  • ZL900A Eliminator 900 1985-1986
  • ZL1000A Eliminator 1000 1987

Suzuki

  • VS700GLF Intruder 700 1986-1987
  • VS750GLP Intruder 750 1988-1991
  • VS800GL Boulevard S50 2005-2009
  • VS800GL Intruder 800 1992-2004
  • VS1400GLP Boulevard S83 2005-2009
  • VZ1600 Boulevard M95 2005
  • VZ1600 Marauder 1600 2004

Triumph

  • America 2002-2014
  • Bonneville 2014
  • Bonneville SE 2009-2013
  • Bonneville T100 2002-2014
  • Rocket III 2004-2009
  • Rocket III Classic 2006-2009
  • Rocket III Roadster 2010-2014
  • Rocket III Touring 2008-2014
  • Speedmaster 2003-2014

Yamaha

  • VMX1200 VMAX 1985-1986, 1988-2007
  • XV535 Virago 535 1987-1988, 1990, 1993-2000
  • XV700 Virago 700 1984-1985
  • XV750 Virago 750 1988-1997
  • XV1000 Virago 1000 1984-1985
  • XV1100 Virago 1100 1986-1999

Customer Reviews

Questions & Answers

  • Is this a gas shock?

    By: kevin211

    These shocks are charged with nitrogen that's separated from the fluid-controlled valving by an internal piston. The piston itself allows fluid volume to expand and contract with heat as you ride. In doing so, you get consistent performance from these shocks no matter how rough the road may get.

    By: Staff

  • Is the price for 1 shock or a pair?

    2006 Honda VTX 1800F Chrome 12.5 inch

    By: Donald

    For the 2006 Honda VTX1800F, Progressive's 444 Series Shocks come in pairs.

    Progressive Shocks are sold in pairs for machines originally equipped with two shocks.

    By: Staff

  • I have 12" stock shocks now, should I stay with 12' progressive shocks or longer ?

    2014 Harley Low Rider FXDL

    By: Larry F

    It really depends on what you're looking to get out of the bike. If you're want to improve the overall ride, then your best bet would be to stick with the same length shocks as OEM. Conversely, if you want to change the way the bike steers, then a different length shock may be what you're after.

    Generally, a longer rear shock will quicken steering at the expense of mid-corner stability. A shorter shock will do the opposite. In either case (improving the ride or changing the way the bike handles) the most important thing you should take into consideration is spring rate: standard or heavy-duty. With Progressive's 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, it would be wise to employ heavy-duty springs there as well.

    By: Staff

  • How well will these work on a bagger two up with a combined weight of 390 lb. and gear

    The stock air shocks work good till the air bleeds off then you have to refill every 4/5 days ,with out air they bottom easy .

    By: Guest

    There's an old adage that says "you don't know what good suspension is until you've tried it." That certainly holds true with Progressive's shocks. For your particular needs, (assuming you're riding two-up at least 50% of the time), your best bet would be the heavy-duty spring rate shocks that are of the same length as stock.

    You'll find the ride quality is significantly improved and the bike will handle a lot better. In addition, since you're putting heavy-duty spring shocks on the rear of the bike, you'll want to match the front fork spring rate for the best possible ride. To do that effectively, check out the Progressive Heavy Duty Fork Spring Kit.

    By: Staff