High Performance Full Circle Crank

Description:
As high performance parts / tuinging parts / racing parts, this full circle crank is suitable for 47cc and 49cc pocket bikes.
Other performance parts / tuning parts / racing parts are also available for scooters, mini-motos, pocket bikes, dirt bikes and atvs. For example:
1) different types of exhaust pipes / mufflers 2) different types of clutches for both 2-stroke and 4-stroke engine, air-cooled and water-cooled, clutch springs 3) cylinder, pistons, rings, pull starter, and gearbox, 4) carburetor, air filter, stacks, intake manifold, gasket, jets for both water-cooled and air-cooled 5) brake caliper, brake level, throttle lever, chain, sprocket, foot-pegs, front fork etc.