Aluminum disc 2 discs 53-59

Aluminum disc 2 discs 53-59

colors : red , black , silver
Litepro 7075 Aluminum Chainring without Screws
53-39T ; BCD 130

Bicycle sprockets, also known as chainrings, are toothed circular gears attached to the center axle of a bicycle. Their main function is to receive force from the rider's pedals through the chain, then transmit that force to rotate the rear wheel and help the bike move.