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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
Piston Material: Cast Aluminum
We've received them in molded black
Quick Acceleration
Premium Japanese Manufacturing: Engineered by Bando to exact factory replacement standards for consistent geometry and long-term durability
75 inches)
Koso 170cc 61mm Big Bore Kit - Honda Grom & Monkey (2014-2020) allen Piston Material: Cast AluminumWant 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!
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