DHM 149 Big Bore Kit
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Regular price $349.00 USD
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DHMotoring 149CC Big Bore Kit for 2022+ Groms and Monkey
Forged 55mm piston with RK rings and correct 12mm pin
Copper base and head gaskets
Casted aluminum cylinder with steel sleeve
With both included gaskets compression ratio is at 12.5:1
With just the supplied single copper base it’s 13.2:1
ARacer MiniX and AF2 recommended currently as only standalone tuning is available until ECU flash library is created.
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