THE FACT ABOUT ENGINES BIKE THAT NO ONE IS SUGGESTING

Freehub (Rear Wheel Only) – the component in a contemporary bicycle’s rear wheel hub that enables the wheel to spin freely when coasting, but engages the drivetrain when pedaling. The cassette slots onto the freehub system.This sort of engine has 3 cylinders arranged inside of a line or perhaps a triangle along a standard crankshaft. It combine