Faast Rear Brake Return Spring

Fasst Rear Brake Return Spring

Availability: In Stock!

Fasst Company


The Fasst Rear Brake Return Spring Kit offers tunable pedal resistance and a better overall feel at the pedal. It provides a consistent pedal feel minimizing the "on-off" feel of most rear brakes.

  • Creates tunable pedal resistance and improved feel.
  • Minimizes the ON / OFF feel of most rear brakes.
  • Spring pre-load determines level of resistance.
  • Minimizes debris from jamming master cylinder.
  • Access your clutch cover more quickly by eliminating the stock brake spring.
  • Made in the U.S.A.
  • Includes return spring, aluminum spring bucket, and jam nut.
    (The jam nut is not always needed, depending on your lever adjustment. You may end up tightening the spring bucket against the push rod, which acts as a jam nut in that case.)

Fasst Co Installation Video

Product Type Hand Controls
Brake Component Type Master Cylinder Parts

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Fasst Rear Brake Return Spring

Fasst Rear Brake Return Spring

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Rear Master Cylinders with M6 threads, using 10mm wrench size on the original jam nut.


All 4 Stroke 125-500 Models


CRF 250R, 2004-and up
CRF 250RX, 2019-and up
CRF 250X, 2004-and up
CRF 450L, 2019-and up
CRF 450R, 2004-and up
CRF 450RX, 2017-and up
CRF 450RWE, 2019-and up
CRF 450X, 2005-and up


RM-Z 250, 2004-and up
RMX 450Z, 2010-and up
RM-Z 450, 2005-and up


WR 250F, 2001-and up
YZ 250F, 2001-and up
YZ 250FX, 2015-and up
WR 450F, 2003-and up
YZ 450F, 2003-and up
YZ 450FX, 2016-and up