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CJR Performance

2022 Honda Grom Piston / BBK

2022 Honda Grom Piston / BBK

Regular price $120.00 USD
Regular price $149.99 USD Sale price $120.00 USD
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DH Motoring Stock Bore Racing Piston (2022+ Grom / Monkey)

DHM has now produced the first high compression stock bore piston and 149cc Big Bore Kit for the new 2022 Grom/Monkey. DHM took development experience from the previous generation Grom and CRF110 to apply it to the all new Grom engine and have come up with a lightweight, high compression piston that still utilizes the OEM 12mm pin size.

DHM Stock bore 125cc kit increases compression to 13.2:1
DHM 55mm / 149cc Big Bore Kit 12.5:1 (Use OEM and supplied BBK Gasket)

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