KOSO NORTH AMERICA Valve Head Kit Grom 2014-2020/Z125M Monkey 2019-2020 MC623000

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Ideal engine part to complete Koso's big bore kit Unique four-valve design increases air flow and performance Provides more power and torque Features a forged piston, stainless ste el 24 mm intake valves and 20 mm exhaust valves 2019-2020 Honda Z125M Monkey - - 2014-2020 Honda MSX125 Grom Show more