Mid-Level Race-Ready 66cc Bike Engine

This engine is SOLID! Built on a factory-balanced bottom end, this GT5 is roarin? to hit the track. With a professional porting job done on the cylinder and proper modification of the piston in all the right places, this engine will roar to life. There are many upgrades and additional work done to this engine so see the list below for details.

*Please note: Due to unprecedented demand for these engines, order will ship in 3-7 business days.