- New


The PROX 37.BD17090 brake disc is designed for TM RACING EN 125, MX 125 from 2010 to 2025. The disc, bolted to the hub, is the surface the pads clamp onto. It has to stay flat and thick enough to get rid of the heat: a tired disc lengthens stopping distances and wears the pads.
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.
Founded in 1975 and based near Amsterdam, ProX specialises in engine and clutch wear parts for off-road bikes. The brand has most of its range made in Japan, by OEM suppliers, for quality on a par with the original parts.
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.
Check the exact model and year of your bike in the list below before ordering.
Fits:
TM RACING EN 125 2025
TM RACING EN 125 2024
TM RACING EN 125 2023
TM RACING EN 125 2022
TM RACING EN 125 2021
TM RACING EN 125 2020
TM RACING EN 125 2019
TM RACING EN 125 2018
TM RACING EN 125 2017
TM RACING EN 125 2016
TM RACING EN 125 2015
TM RACING EN 125 2014
TM RACING EN 125 2013
TM RACING EN 125 2012
TM RACING EN 125 2011
TM RACING EN 125 2010
TM RACING MX 125 2025
TM RACING MX 125 2024
TM RACING MX 125 2023
TM RACING MX 125 2022
TM RACING MX 125 2021
TM RACING MX 125 2020
TM RACING MX 125 2019
TM RACING MX 125 2018
TM RACING MX 125 2017
TM RACING MX 125 2016
TM RACING MX 125 2015
TM RACING MX 125 2014
TM RACING MX 125 2013
TM RACING MX 125 2012
TM RACING MX 125 2011
TM RACING MX 125 2010
Click on your bike to see all compatible parts.
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