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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Compression ratio: 12
2002-Current YZ85 Standard Bore Piston and Top End Gasket Kit W/ Wrist Pin Bearing:
Stock Head 88cc Big Bore Performance Kit (52mm)
The kit includes the following:
Shot peened finish to increase fatigue life
FMF Mini Powercore 4 Slip-on - 2019+ CRF125F/FB ufo Compression ratio: 12The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi Flo stainless steel core and formed end caps, an aircraft grade aluminum canister. Its pounds lighter than stock and you will swear the motor has been bored and stroked with the first twist of the throttle. Hi Flo Core and End Cap
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