High Performance Racing ENGINE Kit. 6 tooth 25h sprocket with 3rd bearing support. Complete Performance 49cc Mini Moto Quadard Engine Upgrade FEATURES.49cc single cylinder, air-cooled, 2-stroke. Performance flat slide carburetor , Heavy duty clutch, Alloy pull starter and HP carby kit. 49cc engine with anodized alloy head. The item "Big Bore Racing 50cc 49cc Engine Motor + Gearbox for 2 Stroke Go Kart Bicycle" is in sale since Tuesday, February 16, 2021. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Complete Engines". The seller is "tdpro99" and is located in Garland, Texas. This item can be shipped worldwide.