Build: Chad Braun/XPR Motorsports
Text: Kris Keefer
Photos/Video/Edit: Mason Owens / Simon Cudby
The Honda CRF250R is the most improved 250 motocross bike of 2025, but we wanted to try and get a little more engine performance out of Honda’s 250 power plant, so we called Team MCR’s engine builder Chad Braun from XPR Motorsports to help us do just that. This is a starting point for some of you that may want some added meat to your new Honda as we will continue to evolve this as we save up some more dough. This build is meant to be reliable and not too expensive, so it will not break your bank. The rebuild for the engine internals are around 30-40 hours, so this isn’t a build where it’s a ticking time bomb waiting to explode all over your wallet.
Parts Used:
OEM Honda Parts
Top-End Gasket Kit, Valve Guide Seals
Akrapovic
Evolution Exhaust System
XPR Motorsports
Custom Piston 14.2:1 Compression Ratio, Vortex ECU, Custom Port/Polish
REP Suspension
Re-Valve, Re-Spring
Motul
300v 10w40 Motor Oil
VP Racing Fuels
MR PRO6 Fuel
Woks Connection
Elite Clutch Perch, Chain Adjuster Blocks, Engine Inspection Cover Plugs, Pro Launch Device, Front Brake Master Cylinder Cover
Decal Works
XPR Semi-Custom Graphics Kit, Preprinted Number Plate Backgrounds
Dunlop
MX34 110/90-19
MX34 80/100-21
Renthal
839 Fatbar, Half Waffle Soft Grips
