RollerBoys equipped with low friction ceramic bearings for ultra-smooth glide and exceptional durability. Lubricated with special ceramic light oil for extra smoothness. Composite material provided by EMS Swiss, with 40% glass-fiber. Complete set of bushings for different shifting systems included. 

Composite material provided by EMS Swiss, with 40% glass-fiber mixture. Complete set of bushings for different shifting systems included. 11T. Compatible with Shimano 9 and 10-speed / Mega Range and Campagnolo 11 speed Colours: transparent, black and gray.

Composite material provided by EMS Swiss, with 40% glass-fiber mixture. Complete set of bushings for different shifting systems included. 10T. Compatible with Shimano 7 and 8-speed; Campagnolo 8, 9 and 10 speed; SRAM 9.0(‘97/’98), 9.0SL(’98), 7.0(‘97/’98) and 5.0(‘98/’99). Colours: transparent, black and gray....

SRAM ETAP BATTERY (FRONT OR REAR DERAILLEUR) QTY 1 SRAM RED eTap Battery is the power source for the eTap system. The same power unit is interchangeable between front and rear derailleurs.Up to 1000 kilometers of riding per charge

This product is a Genuine Shimano replacement part For Ultegra and GRX RD-R8000 RD-R8050 RD-RX800 RD-RX805 RD-RX812 rear derailleurs For a full exploded diagram of all spares please refer to www.si.shimano.com

This is a RD-R7000 105 11-speed rear derailleur, GS, for low gear 28-34T available in black.  11-speed 105 wide link rear derailleur medium cage - GS Advanced Wide Link design increases rigidity and shifting performance Super stiff for fast and accurate changes across...

10-speed 105 wide link rear derailleur short cage - SS Advanced Wide Link design increases rigidity and shifting performance Super stiff for fast and accurate changes across the cassette Large 11 tooth pulleys increase service life and reduce noise Super light shift action...

Ultegra Shadow design rear derailleur with wide link design gives quick accurate shifts and excellent drivetrain efficiency Sleek appearance with Low profile Shadow design construction reduces risk of damage in a crash Wide outer link plates increase pivot joint rigidity to reduce shifting deflection Lightweight...

2400 Claris derailleurs feature an advanced light action for low-friction shifting up or down the block Wide link design for increased rigidity and precise gear shifts For use with double setups Compatible with 8-speed drivetrains Max sprocket sizes: 25-32T...

RollerBoys equipped with low friction ceramic bearings for ultra-smooth glide and exceptional durability. Lubricated with special ceramic light oil for extra smoothness. Composite material provided by EMS Swiss, with 40% glass-fiber. Complete set of bushings for different shifting systems included. Ceramic...

Great value Altus rear derailleur offering crisp performance on- and off-road for 9-speed drivetrains Wide link design increases rigidity and service life 11-tooth pulleys for reduced pulley wear and chain noise Advanced light action design with low friction fluorine coated link pivot bushings Top-normal...

Great value Altus rear derailleur offering crisp performance on- and off-road for 9-speed drivetrains Wide link design increases rigidity and service life 11-tooth pulleys for reduced pulley wear and chain noise Advanced light action design with low friction fluorine coated link pivot bushings Top-normal...

Genuine Shimano replacement part

Sora derailleurs feature an advanced light action for low-friction shifting up or down the block Wide link design for increased rigidity and precise gear shifts 11-tooth pulleys for reduced pulley wear and chain noise Pulleys feature sintered alloy bushings for smooth-running performance 37 tooth total...

2400 Claris derailleurs feature an advanced light action for low-friction shifting up or down the block Wide link design for increased rigidity and precise gear shifts For use with triple setups Compatible with 8-speed drivetrains Max sprocket sizes: 28-34T...

High-quality aluminium derailleur pulleys. Extra stiff for fast shifting. High-quality sealed ball bearing. 11T. Compatible with Shimano 9 and 10-speed and Campagnolo 11-speed.