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Genuine Koso Products:


High quality gauges and accessories for all types of motorsports. 



Product Details:


    • Unleash all the power your Grom can handle with this big bore kit.
    • Allows you to use pump fuel with a compression ratio of 11.5 to 1
    • Retains the reliability of a stock motor
    • Includes ceramic-coated cylinder, 61mm forged piston, rings, pin, gasket kit and banjo bolts



    About Us:

    LeClare Powersports is a small-town Parts and Accessories store in Springfield, MO. Our low overhead allows us to offer better prices than the 'Big Boys', but our owner-operated store allows us to give our customers the great customer service they deserve.

    We only sell brand new, high quality GENUINE name-brand aftermarket parts...no junk, no knock offs and no "seconds". Buy with confidence!