HCR Cylinder tune Yamaha YZ125 2005-2020

Hardcore race engines have won more British championships than any other tuning company, we provide high performance with reliability and a high level of tech support to assist you getting your goals, our modifications to the YZ125 engine are second to none

we provide

cylinder tune
crankcase flow
long rod kit (does not increase the engine capacity)
carb boring
gearbox super finishing

I recommend you call us to discuss tailoring you engine to suit your needs

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