My Account
Contact Us
Help Center
Free Shipping
Fitment Guaranteed
Definitely Rad!
By Eric L. on July 10, 2018
The Rad Valve lives up to what it says. Personally, I'd be careful though and wouldn't try much leaner on the mains like Boyesen instructs. I jumped a few richer & could even go up more.
- Value:
- Quality:
Boyesen RAD Valve
$
$
–
$
$136.83
–
$226.98
Product Description
Boyesen RAD Valve
Patented, one-piece, cast aluminum reed block system that delivers guaranteed bolt on performance. Carb boot, carb boot clamp and gasket provided. No modifications required, everything you need is in one box.
- Boyesen's hot RAD valve provides plenty of offroad torque
- Custom reed cage holds Boyesen's carbon fiber reeds
- Sustains flow velocity through the valve and redirects intake charge for balanced distribution to intake ports
- Quickens throttle response and ramps up horsepower throughout RPM range
- Solid one-piece aluminum casting
- Simple installation
- Sold individually
- Made in the USA
| Spec | Details |
|---|---|
| Carburetor Type | Varies (make selection above) |
| Country of Origin | USA |
| Material | Varies (make selection above) |
| Quantity | 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.
Honda
- ATC250R 1985-1986
- CR125R 1988-1997, 2000-2007
- CR250R 2-Stroke 1986-2007
- CR500R 1990-2001
- TRX250R FourTrax 250R 2x4 1986-1989
Husaberg
- TE 250 2012-2014
- TE 300 2012-2014
Husqvarna
- CR125 1995-1997
- TC 85 17/14 2014-2017
- TC 85 19/16 2014-2017
- TC 125 2014-2015
- TC 250 2014-2016
- TE 125 2014-2016
- TE 250 2014-2016
- TE 300 2014-2016
- TX 300 2017-2019
KTM
- 65 SX 1998-2019
- 85 SX 17/14 2009-2017
- 85 SX 19/16 2009-2015
- 125 EGS 1998-1999
- 125 EXC 1998-2005, 2015
- 125 SX 1998-2015
- 144 SX 2007-2008
- 150 SX 2009-2015
- 150 XC 2010-2014
- 150 XC-W 2017-2019
- 200 EXC 1998-2005
- 200 SX 2003-2005
- 200 XC 2006
- 250 EXC 1998-2003
- 250 MXC 1998-2001
- 250 SX 1998-2001, 2004-2016
- 250 XC 2007-2016
- 300 DXC 1990-1992
- 300 EGS 1995-1999
- 300 EXC 1990-2003, 2015, 2017
- 300 MX 1990-1991
- 300 MXC 1994-2003
- 300 XC 2007-2016
- 350 EXC 1988-1990
- 350 MXC 1987
- 380 EXC 1998-2002
- 380 MXC 1998-2001
- 380 SX 1998-2002
- 440 EXC 1994-1995
- 440 MXC 1994-1995
- 500 MXC 1995
- 550 MXC 1994-1995
Kawasaki
- KDX200 1989-2006
- KDX220R 1997-2005
- KX65 2000-2019
- KX80 1991-1997
- KX80 Big Wheel 1991-1994
- KX85 2001-2019
- KX100 1995-1997, 2001-2009, 2011-2019
- KX125 1992-2005
- KX250 2-Stroke 1987-2007
- KX500 1987-2004
Polaris
- Sport 400L 1994-1998
- Trail Boss 350L 2x4 1990-1993
- Trail Boss 350L 4x4 1990-1992
Suzuki
- RM65 2003-2005
- RM80 1994-2001
- RM85 2002-2010, 2012, 2015-2019
- RM85L 2002-2010, 2012
- RM100 2003
- RM125 1992-2008
- RM250 1990-2008
- RMX250 1996-1998
Yamaha
- WR250Z 1992-1997
- YFS200 Blaster 1988-2006
- YFZ350 Banshee 1987-2006
- YZ80 1994-2001
- YZ85 2002-2018
- YZ125 1989-2019
- YZ250 2-Stroke 1989-2020
- YZ250X 2-Stroke 2016-2019
Customer Reviews
RAD Valve
By Barry M. on November 6, 2019
Parts are awesome.
- Value:
- Quality:
Very good
By Justin Q. on July 28, 2020
As I expected it added a bit more throttle response, nothing crazy but it comes on earlier and harder. I really wanted it for the build quality and only needing one gasket vs the stock reed setup. Definitely overpriced but a great product.
- Value:
- Quality:
Great to replace your rotted out, old rubber manifold.
By Justin Q. on July 30, 2020
Amazing build quality and definitely is adding some throttle response and low end. My bike comes on sooner and harder with this, without giving up anything up top.
- Value:
- Quality:
Boysen Rad Valve
By Tim G. on August 25, 2020
Boysen rad valve works to keep throttle more snappy and improved performance on bike. One piece design for easy install. Comes with instructions on how to properly jet. I would recommend and use this product again.
- Value:
- Quality:
Excellent
By Allen M. on November 10, 2020
Excellent product.
- Value:
- Quality:
Questions & Answers
-
is the intake boot included on the kx 500 rad valve?
Yes, the intake boot is included with every Boyesen Rad Valve kit. You also get the boot clamp and gasket to go with it. It'll bolt straight to the OEM carburetor of any machine we have listed in our fit guide without issue, guaranteed!
By: Staff
-
What the intake size for the carb side? For a 2006 Yamaha blaster
Boyesen Rad valves are designed to fit the OEM carburetor. That is to say, the intake size as the same size as the OEM unit on your Yamaha Blaster.
By: Staff
-
Does this come with reeds or do I have to buy reeds separate?
Yes, the reeds are indeed included with each Boyesen Rad valve. You need not purchase those separately. Everything you need to fit this to any machine you see in out fit guide is included in the box.
By: Staff
-
When purchasing for a banshee, is the price for a pair?
Yes, you would receive two RAD valves with your purchase if you were to order this kit for a Banshee.
By: Staff
-
Does this fit a 2000 suzuki rm 125
Yes, if you were to select the 2000 Suzuki RM125 RAD valve from our fit guide, you'd have no problem fitting this unit to your machine.
By: Staff