PROX Brake Disc for KAWASAKI KXF 250, KXF 450 2015-2026

On KAWASAKI KXF 250, KXF 450 from 2015 to 2026, the PROX 37.BD14315 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.BD14315

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 : AP RACING · T-BRAKE
• Brake fluid : MOTUL 5 L · MOTUL 500 ml

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:
KAWASAKI KXF 250 2026
KAWASAKI KXF 250 2025
KAWASAKI KXF 250 2024
KAWASAKI KXF 250 2023
KAWASAKI KXF 250 2022
KAWASAKI KXF 250 2021
KAWASAKI KXF 250 2020
KAWASAKI KXF 250 2019
KAWASAKI KXF 250 2018
KAWASAKI KXF 250 2017
KAWASAKI KXF 250 2016
KAWASAKI KXF 250 2015
KAWASAKI KXF 450 2026
KAWASAKI KXF 450 2025
KAWASAKI KXF 450 2024
KAWASAKI KXF 450 2023
KAWASAKI KXF 450 2022
KAWASAKI KXF 450 2021
KAWASAKI KXF 450 2020
KAWASAKI KXF 450 2019
KAWASAKI KXF 450 2018
KAWASAKI KXF 450 2017
KAWASAKI KXF 450 2016
KAWASAKI KXF 450 2015