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Replacement piston ring set for your 72cc kit
wind-resistant fit
and CVT components — no guesswork
NCY PTFE-coated star vented racing clutch bell
Koso 170cc 61mm Big Bore Kit - Honda Grom & Monkey (2014-2020) 36 piece Replacement piston ring set forWant to unleash all the power your Honda Grom can handle? Koso's 170cc Big Bore Kit (MB623002) is the perfect addition for you! The kit includes a ceramic coated cylinder, 61mm forged piston, rings, pin, gasket kit and banjo bolts. Its compression ratio of 11. 5 to 1 will allow you to still use premium pump gas and keep the reliability of a stock motor. Made from the best components available on the market, Koso's 170cc big bore kit will amaze you!
US$ 24.00
US$ 24.00
US$ 32.00
