Star-cut bicycle chain wheel (E), a chainring with attached crank arm made in cottered and cotterless versions. As the front drive of a bicycle, it turns pedalling force into chain movement. The chainring has five broad spokes in a star pattern around a central boss, with a ring of teeth at the rim, and the crank arm ends in a round pedal eye. It has a bright silver finish. Available sizes are 1/2" x 1/8" x 28T / 32T / 36T / 40T, in CP or Black.