DETAILS, FICTION AND CASSETTE BIKE PART

Wheels on bicycles are speed multipliers, identical to wheels on cars. At its center, the axle is turned by pedals and gears. Wheels change only a short distance on the axle, but their leverage permits them to turn much farther over the outer rim. That’s how wheels make you go faster.Freewheel: The freewheel is a set of gears connected into the r