Seller notes

44MM BIG BORE TOP END KIT FOR POCKET BIKE 49CC 2 STROKE STAGE 3 RED Condition: Brand New This is a 'big bore' cylinder CNC top end kit for 49cc pocket bikes. This kit includes everything you need to get 3.5 to 5 times the power out of your standard issue 2-stroke 49cc engine. Huge increase in bottom and top end power! This is a high compression, performance head kit. We offer single valve (single large oval slot in the piston) and two valve (dual slot in the piston), this ad is for a single. Thi...

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