Fork Rising Rate Spring

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  • Regular price $59.95
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Description

The majority of current off-road motorcycles have a closed cartridge fork that works much like a rear shock absorber. When the fork is compressed, the damper shaft enters the cartridge body and a volume of oil equal to the volume of the shaft is displaced into an upper chamber. The upper chamber has a floating piston which stops the oil from exiting the cartridge. Force is applied to the floating piston by the pressure spring, the stronger the spring the more resistance on the damper rod. This resistance is known as compression damping. The Merge RRS system uses unique winding methods to produce a pressure spring which gets much stiffer in the end of the stroke where you need it, “Rising Rate”, much like a linkage on the rear suspension and unlike conventional progressive springs.

The Merge RRS simply provides resistance or compression damping at the end of the stroke to help prevent bottoming, and less resistance at the top of the stroke to help absorb those square edged bumps, rocks and roots.

Rising Rate Springs KYB (Medium/Stiff) Pair
USE WITH 2012 (and newer) THICK WALLED TWIN CHAMBER PISTON

The Rising Rate Springs (RRS) front fork cartridge spring provides a performance curve not offered by any other spring to change the speed of your valving, creating a more supple feel over the small stuff and maintaining the resistance to bottoming. It’s like linkage for your forks.

Base Valve assembly NOT included.
Features & Benefits
  • Smoother on top, more resistant on bottom
  • Simulates rear linkage
  • Easy to install
This Product will fit these models
Med-Stiff SKU# 00-035

Honda CRF250R 2010-2014, 2019, 2020

Honda CRF450R 2009-2012, 2018, 2020, 2021

Kawasaki KX450F 2006-2019

Suzuki RMZ250 2018-2021

Suzuki RMZ450 2018-2021

Yamaha YZ125 2006-2015

Yamaha YZ250 2006-2015

Yamaha YZF450 2017-2021

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Rising Rate Springs KYB (Light/Medium) Pair 
USE WITH 2012 (and newer) THICK WALLED TWIN CHAMBER PISTON

The Rising Rate Springs (RRS) front fork cartridge spring provides a performance curve not offered by any other spring to change the speed of your valving, creating a more supple feel over the small stuff and maintaining the resistance to bottoming. It’s like linkage for your forks.

    Base Valve assembly NOT included.
    This product fits these models
    Light-Med SKU# 00-036

    Honda CRF250R 2010-2014, 2018-2021

    Honda CRF450R 2009-2012, 2021

    Kawasaki KX450F 2006-2014, 2019-2020

    Suzuki RMZ250 2019-2020

    Suzuki RMZ450 2018-2021

    Yamaha YZ125 2006-2015

    Yamaha YZ250 2006-2015

    Yamaha YZF250 2006-2015

    Yamaha YZF450 2006-2015

    Suzuki RMZ250 2019-2020

    Suzuki RMZ450 2018-2021

    -------------------------------------

    Rising Rate Springs - Showa 47mm (Medium-Stiff) Pair

    The Rising Rate Spring (RRS) Showa front fork cartridge spring provides a performance curve not offered by any other spring to change the speed of your valving, creating a more supple feel over the small stuff and maintaining the resistance to bottoming. It’s like linkage for your forks.

    • Smoother on top, more resistant on bottom
    • Simulates rear linkage
    • Easy to install

    Base Valve assembly NOT included.

    This product will fit these models
    Med-Stiff SKU# 00-034

    Honda CRF250R 2006-2009

    Honda CRF450R 2006-2008

    Kawasaki KX250F 2006-2012

    Suzuki RMZ250 2006-2012

    Suzuki RMZ450 2006-2012

    Rising Rate Springs - Showa 47mm (Light-Medium) Pair 

    The RRS front fork cartridge spring provides a performance curve not offered by any other spring to change the speed of your valving, creating a more supple feel over the small stuff and maintaining the resistance to bottoming. It’s like linkage for your forks.

    • Smoother on top, more resistant on bottom
    • Simulates rear linkage
    • Easy to install

    Base Valve assembly NOT included.

    This Product fits these models
    Light-Med SKU# 00-033

    Honda CR250R 2006-2007

    Honda CRF250R 2006-2009

    Honda CRF450R 2006-2008

    Kawasaki KX250F 2006-2012

    Suzuki RMZ250 2006-2012

    Suzuki RMZ450  2006-2012

    ---------------------------------------

    Rising Rate Springs WP

    The Rising Rate Springs (RRS) front fork cartridge spring provides a performance curve not offered by any other spring to change the speed of your valving, creating a more supple feel over the small stuff and maintaining the resistance to bottoming. It’s like linkage for your forks.

    Base Valve assembly NOT included.
    Features & Benefits
    • Smoother on top, more resistant on bottom
    • Simulates rear linkage
    • Easy to install
    This Product will fit these models
    SKU# 00-035W

    Honda CRF250R 2015-2017

    Husqvarna TC 125 2017-2020

    Husqvarna TC 250 2017-2020

    Husqvarna FC 350 2017-2020

    Husqvarna FC 450 2017-2020

    Kawasaki KX250F 2013-2019

    Kawasaki KX450F 2017-2018

    KTM SX125 2016-2020

    KTM SX250 2016-2020

    KTM SX-F 250 2016-2020

    KTM SX-F 250FE 2016-2020

    KTM SX-F 350 2016-2020

    KTM SX-F 450 2016-2020

    KTM SX-F 450FE 2016-2020

    Suzuki RMZ250 2013-2015

    Suzuki RMZ450 2013-2014

    Please indicate your Year/Make/Model in the "special instruction to seller" on shopping cart page, so we can verify sending you the correct part.
    Thank You