PROX Brake Disc for HONDA CR 80, CR 85, CRF 150 1992-2026

On HONDA CR 80, CR 85, CRF 150 from 1992 to 2026, the PROX 37.BD21192 brake disc fits in place of the original part. Gripped by the pads, the brake disc soaks up the heat of every stop. Its design (cut-outs, petal profile) helps clear mud and cool it down.

Specifications

• Brand: PROX
• Manufacturer part number: 37.BD21192

When to replace it?

• Thickness below the minimum stamped on the disc or given in the manual.
• Warped disc: vibration through the lever or pedal, brake that “pulses”.
• Deep scoring, cracks or blueing after overheating.

Measure the thickness with a micrometer every time you change the pads, and replace the disc as soon as it reaches the minimum thickness, or if it's warped or cracked.

Fitting tips

1. Clean the hub mounting face: a single grain of sand under the disc is enough to throw it out of true.
2. Fit the disc the right way round (markings facing out, direction of rotation if indicated).
3. Tighten the bolts in a criss-cross pattern to the manufacturer's torque, with medium-strength threadlocker.
4. Degrease the disc and ideally fit new pads.
5. Bed in with a dozen progressive stops.

Why PROX?

ProX Racing Parts has been supplying engine and clutch parts to motocross riders since 1975, from its headquarters near Amsterdam. According to its catalogue, most of its parts are made in Japan, by manufacturers that also produce parts for the Japanese motorcycle makers.

Spare parts and items to plan

• Brake pads : NISSIN · T-BRAKE
• Brake fluid : MOTUL 500 ml · MOTUL 5 L

Frequently asked questions

Should the pads be changed along with the disc?
It's strongly recommended: worn pads have taken on the shape of the old disc and won't brake well on a new one.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
HONDA CR 80 2004
HONDA CR 80 2003
HONDA CR 80 2002
HONDA CR 80 2001
HONDA CR 80 2000
HONDA CR 80 1999
HONDA CR 80 1998
HONDA CR 80 1997
HONDA CR 80 1996
HONDA CR 80 1995
HONDA CR 80 1994
HONDA CR 80 1993
HONDA CR 80 1992
HONDA CR 85 2007
HONDA CR 85 2006
HONDA CR 85 2005
HONDA CR 85 2004
HONDA CR 85 2003
HONDA CR 85 2002
HONDA CR 85 2001
HONDA CR 85 2000
HONDA CR 85 1999
HONDA CR 85 1998
HONDA CR 85 1997
HONDA CR 85 1996
HONDA CR 85 1995
HONDA CR 85 1994
HONDA CR 85 1993
HONDA CR 85 1992
HONDA CRF 150 2026
HONDA CRF 150 2025
HONDA CRF 150 2024
HONDA CRF 150 2023
HONDA CRF 150 2022
HONDA CRF 150 2021
HONDA CRF 150 2020
HONDA CRF 150 2019
HONDA CRF 150 2018
HONDA CRF 150 2017
HONDA CRF 150 2016
HONDA CRF 150 2015
HONDA CRF 150 2014
HONDA CRF 150 2013
HONDA CRF 150 2012
HONDA CRF 150 2011
HONDA CRF 150 2010
HONDA CRF 150 2009
HONDA CRF 150 2008
HONDA CRF 150 2007