Cylinder Kit - Universal Parts QMB139 50mm Big Bore Cylinder Kit Upgrade to 83cc for TAO TAO ATM 50/A > Part #151GRS258
Grand Rapids Scooter's Universal Parts 50mm Big Bore Cylinder Kit for 50cc 4-stroke QMB139 engines. Upgrades to 83cc based on a stock stroke of 42mm! Includes cylinder, piston, pin, circlips, rings, head gasket and base gasket.
Supported Models: Bintelli, Tao Tao, Peace Sports, Wolf, Schwinn, Puma, SYM, Alliance, Motorino, and Kymco.
- Upgrades to 83cc!
- Bore: 50mm
- Overall Height: 70mm
- Cylinder Sleeve Outer Diameter: 52.6mm
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