Seller notes

CDH Dio Reed Valve CNC Block For 2 Stroke 48cc/66cc/80cc Gas Motorized Bicycle Description Fitment: works with 48cc/66cc/80cc engine kit Package Include: 1 set Intake Pipe 1x Dio reed valve block Firstly:change stock head to racing head; Secondly:port the other ports , like the transfer ports , and exhaust ports, and use a expansion chamber exhaust system, if you also jet the bigger carburetor such as a keinin 17 or 20 millimeter dirt bike carb,then the absolutely screem Thirdly:if you know how ...

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