Bike gears let you adjust the resistance and speed of the pedals, making it easier or harder to pedal the bike. These are the different ratios of chainring and sprocket combinations that allow the rider to adjust the resistance and speed of the pedals. Bicycles can have a wide range of gears, with some models having many gears for different riding conditions and terrains; and others having fewer gears for simplicity and ease of use. Replace worn-out gear cables, and derailleurs, upgrade your shifters, or simply keep a spare derailleur hanger with our selection of quality components from Shimano, Sram, XLC, RSP and more.
Derailleurs are mechanisms moving the chain between the different sprockets and chainrings. Shifters on the handlebars control the derailleurs.
These are the controls used to shift gears while riding. They can be mounted on the handlebars or integrated into brake levers.
These are small sacrificial metal parts attached to the rear derailleur to the bike frame. They can bend or break in the event of a crash or other impact and should be checked regularly for damage.
Gear cables are wires connecting the shifters to the derailleurs, transmitting the shifting action from the rider's input to the derailleur.