Rear

Shimano 105 R7000 Series will empower more riders than ever before to embrace the sport of road cycling. It will become the supportive groupset that beginner riders choose to help them train for, and ride in more serious races. By combining trickle down t

Great value Alivio M3100 rear derailleur offering crisp performance on- and off-road for 9-speed drive trains
Shadow design with smooth skid plate surface features a super low profile design that reduces the risk of damage from trail side hazards
Wide l

BBB replacement jockey wheels.
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

Sora derailleurs feature an advanced light action for low-friction shifting up or down the block
11-tooth pulleys for reduced pulley wear and chain noise
Pearl and zinc-plated steel finish prevents corrosion and looks great
Pulleys feature sintered all

10-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 the cassette
Large 11 tooth pulleys increase service life and reduce noise
S

Shimano TZ500 6-speed rear derailleur (direct attachment)
SIS rear index shifting
GS cage can handle wide range gearing and 28 tooth sprockets
11 tooth pulleys offer long service life and less noise
Wheel type cable guide provides super light shifting

same shapes of the Super Record one in order to obtain similar shifting performance
Low weight with high stiffness and great resistance to impacts.
Same system already used in Super Record derailleur.
Perfect alignment of the derailleur cage.
Better u

Offering pro-level features, the 10-speed compatible Tiagra rear derailleur gives high performance at a low price
Wide link design increases rigidity and service life
Advanced light action for low-friction shifting up or down the block
Alloy body's and

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
Su

The SRAM X5 is for trail enthusiasts the world over. If you find yourself starting the day on the trail, but you end the day pedaling the city streets then the SRAM X5 is the ultimate choice. This is the Medium Cage version.

RD-R7000 105 11-speed rear derailleur, SS, for low gear 25-30T, black Black SS - short

RD-M670 SLX 10-speed Shadow design rear derailleur, SGS, top normal Grey SGS - long - top normal

RR MECH Sora R3000 9spd SS

The Brompton Chain Tensioner Assembly is a genuine Brompton spare part.The Brompton chain tensioner is one of the "essential" list of spare parts for Bromptons with a single rear sprochet and performs an important role in keeping the chain taut whether th

This New Marvo MTB rear mech gears are all alloy in construction with a CNC cage and top ‘wide link’ weighing in at only 220g for the short cage version. The cold forged wide link makes for a more stable positive shift, these new mechs are ‘dual sprung’ w

Acera mountain bike rear derailleur with light action operation and over-size pulleys for a wide gear choice
Oversize 13-tooth tension and guide pulleys to reduce noise and wear
Extension spring and low-friction fluorine-coated link pivot bushing result

Upgrade or replacement rear derailleur dropouts; stiffer and more rigid to improve shifting performance
CNC machined from solid 6061 aluminium to exact tolerances
Stiffer than any original equipment hanger which improves shifting performance
Still brea

Altus mountain bike rear derailleur with light action operation and over-size pulleys for a wide gear choice
Oversize 13/15-tooth tension and guide pulleys to reduce noise and wear
Extension spring and low-friction fluorine-coated link pivot bushing res