Rear
Derailleurs
CeramicSpeed
OSPW RS Alpha Disc Pulley Wheels For Campag SR Wireless
CeramicSpeed
OSPW RS Alpha Disc Pulley Wheels For Shimano 9250/8150
CeramicSpeed
OSPW RS Alpha Disc Pulley Wheels For SRAM Red/Force D1 And Red E1 AXS
CeramicSpeed
OSPW RS Alpha Disc Pulley Wheels For SRAM Red/Force D1 And Red E1 AXS V2
CeramicSpeed
OSPW RS Alpha Pulley Wheels For SRAM Force E1 And Rival E1
CeramicSpeed
OSPW X - Shimano GRX820 2x12
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The Rear Derailleur is the component which shifts the chain on the rear sprocket. Again, there are many different variations and brands of derailleur, with some designed for mountain bike use and some designed for road bike use. Their design however, at a basic level - remains the same, as does their functionality. Deraillerus arew fixed to the bike with a bolt, which secures the derailleur to the derailleur hanger.
Most mountain bikes and road bikes have both a front and rear dearailleuer, but SRAM pioneered a system which is increasingly used, using a 1 x chainring. The rear derailleur has to work incredibly hard during a bike ride, so it’s important that you choose the right derailleur for your bike, and keep your bike's transmission and drivetrain correctly maintained.