Key Features
The Top Performances TPR 86cc kit is a competition-focused big-bore kit for 50cc engines, utilizing a long-stroke 44mm crankshaft and a 50mm bore aluminum cylinder to achieve 86cc. It is designed for maximum power output in racing scenarios, demanding supporting high-performance parts for optimal results (e.g., 28mm carb, inner rotor ignition, racing exhaust). Engine case milling is required to fit the 44mm stroke crankshaft.
