Rear

This is the indexed ratchet needed for converting Campagnolo 11-speed rear derailleurs with a 27-tooth maximum tooth capacity to a 29-tooth maximum tooth capacity to work with 12-29 cassettes.

The rear derailleur is the defining component of the Centaur groupset. Inheriting many of the technologies used by Campagnolo’s top-of-the-range rear derailleurs, the Centaur offers shifting performance to meet all requirements – even professionals’. The new Campagnolo Centaur rear derailleur has been designed to be compatible with cassettes with up to 32 teeth. With the upper jockey wheel’s longer teeth, the lower wheel’s smoothed teeth, and a long list of performance-oriented technology, the Centaur rear derailleur is the top component in its class – and all at 15 grams lighter than its competitors. - Lightweight technopolymer upper and lower bodies reinforced with glass fiber for reduce weight and increased strength - Features the same shape of Super Record, offering similar shifting performance - Upper pulley wheel with longer teeth for easier rear shifting - Lower pulley wheel with chamfer teeth for increased smoothness - Pulley wheels with bushings - Drivetrain Speeds: 11 - Cage Length: Medium - Chain Wrap Capacity (teeth): 37 teeth - Rear Der/Shifter Compatibility: Campy Centaur/Potenza/Chorus/Record/Super Record 2015+ - Largest Cog: 32

Campagnolo's Veloce Rear Derailleur uses an advanced-parallelogram design that assures precise and quick shifting. The aluminum construction reduces weight and boosts strength for crisp gear changes. Plus, the pulleys are made from a special material that renders the drivetrain nearly silent.

Campagnolo's Veloce Rear Derailleur uses an advanced-parallelogram design that assures precise and quick shifting. The aluminum construction reduces weight and boosts strength for crisp gear changes. Plus, the pulleys are made from a special material that renders the drivetrain nearly silent.

If the Potenza 11 rear derailleur looks almost identical to that of the Super Record, it is because its design takes a great deal of inspiration from the recently launched Revolution 11+ drivetrains and guarantees a similar degree of shifting performance as a result. Changing only the materials used in its construction the Potenza 11 rear derailleur is capable of shifting with the precision and speed of the Super Record version with the only compromise coming in the form of weight. Thanks to sophisticated solutions such as Embrace technology, riders using Potenza 11 can count on highly efficient power transfer, secure grip, efficient chain/cassette interface and longer component life previously attributed only to the elite mechanical transmissions from Campagnolo. The Potenza 11 rear derailleur takes top-end performance and technology and takes its versatility one step further by adding a medium cage version capable of shifting flawlessly with an 11-32 cassette. There is now no mountain tall enough nor any climb too steep for Campagnolo. - Lightweight technopolymer upper and lower bodies reduce weight - Features the same shape of Super Record, offering similar shifting performance - Special lightweight rubber pulleys reduce friction and noise - Compatible with Potenza and model year 2015 and newer Chorus, Record and Super Record-Pulley rollers on bushings in sintered material - Drivetrain Speeds: 11 - Cage Length: Medium - Chain Wrap Capacity (teeth): 37 teeth - Largest Cog: 32

If the Potenza 11 rear derailleur looks almost identical to that of the Super Record, it is because its design takes a great deal of inspiration from the recently launched Revolution 11+ drivetrains and guarantees a similar degree of shifting performance as a result. Changing only the materials used in its construction the Potenza 11 rear derailleur is capable of shifting with the precision and speed of the Super Record version with the only compromise coming in the form of weight. Thanks to sophisticated solutions such as Embrace technology, riders using Potenza 11 can count on highly efficient power transfer, secure grip, efficient chain/cassette interface and longer component life previously attributed only to the elite mechanical transmissions from Campagnolo. - Lightweight technopolymer upper and lower bodies reduce weight - Features the same shape of Super Record, offering similar shifting performance - Special lightweight rubber pulleys reduce friction and noise - Compatible with Potenza and model year 2015 and newer Chorus, Record and Super Record - Pulley rollers on bushings in sintered material - Drivetrain Speeds: 11 - Cage Length: Short - Chain Wrap Capacity (teeth): 37 teeth - Largest Cog: 29 - Weight: 211 grams

New mechanical Record 12 Speed rear derailleur: precision, lightness, and versatility. Designed to improve performance and function in every aspect, the new Record 12 Speed mechanical rear derailleur has an innovative shape that envelopes the sprockets better thanks to 3D Embrace technology, creating a double effect: allowing the chain to maintain optimum traction at all times, thus increasing the speed, power, and precision of shifting; and ensuring that the derailleur is always kept an optimal distance away from the sprockets. The cage has also been optimized to work with sprockets from 11 to 32 teeth, allowing a single version to be maintained for all available sprocket sets. The upper part of the new Record 12 Speed mechanical rear derailleur gearbox is made of carbon fiber-reinforced technopolymer, contributing to its robustness and lightness, while the stop adjustment screws at the back of the rear derailleur make adjustments very simple.

It’s the heart and soul of the Record 11-seed drivetrain! The Record rear derailleur has always evoked competitions and wins, and still today represents for professional racers the certainty of fast and extremely precise shifting, even under load. But you don’t have to be a pro to take advantage of the performance features of the Record 11-speed: the fun is for all. - The new shape of the external components enables the rear derailleur to move according to a different angle and the new internal design keeps the chain nearer the cassette to ensure better power transmission, greater and more secure traction - The two-piece system, while maintaining resistance and rigidity, makes it possible to reduce the weight by 53% compared to steel and 22% compared to titanium, and prolongs the life of the component - Upper and lower body in monolithic technopolymer with carbon powder maximizes weight reduction yet is still resistant to impacts - Carbon fiber front plate offers extreme stiffness and reduced weight - Ultra-Shift technology - Maximum shifting rigidity, fast actuation, precision, friction reduction - Optimized for use with the new H11 drivetrain system - Speed: 11-speed - Max: 29 - Cage/Mount: Short

Speed, precision, smoothness and better looks: the first rear derailleur with carbon fibre upper and lower body will amaze even the most demanding of cyclists. - New shape of the external components enables the rear derailleur to move according to a different angle and the new internal design keeps the chain nearer the cassette to ensure better power transmission, greater and more secure traction - Embrace technology - Special chainring positioned inside the gear body acts on a rectangular section spring that allows the component to move along a trajectory that perfectly follows the curve of the sprockets - The new two-part system is 53% lighter than steel and 22% lighter than titanium, without compromising resistance and rigidity levels and prolonging component life - Carbon fiber cage plate results in a shifting positioning that is exceedingly precise and extremely light - Ceramic bearings for a very smooth action that in turn reduces friction, prolongs life and shifting performance - Speed: 11-speed - Max: 29 - Cage/Mount: Short

Campagnolo's Super Record EPS Rear Derailleur's arresting beauty is entwined with the pinnacle in rear shifting accuracy and precision. Campagnolo uses an advanced-parallelogram design and the extremely high-quality servo motors for precise, fast shifting of up to all 11 gears from a single push of a button. Or stop on any cog and the position sensor makes micro-adjustments to ensure perfect alignment. And this top-tier Italian bike jewelry is constructed from carbon and cold-forged aluminum to create an ultra strong and extremely light derailleur. Plus, the pulleys roll on super-efficient ceramic bearings and are made from a special rubber that renders the drivetrain virtually silent.

R-series rear derailleurs are designed to work with 7, 8, 9, and 10-speed Shimano-compatible road shifters. These R10 aluminum rear derailleurs are lightweight, precision CNC-machined, robust, and can get any bike back on the road. - Lightweight all-aluminum construction - Compatible with Shimano 7, 8, 9, and 10-speed road systems - Not compatible with Shimano Tiagra 4700 road system - Short cage for double crankset and 28T max cog - Medium cage for double crankset and 34T max cog

Centos delivers race-level shifting performance with full-aluminum construction. These derailleurs support all riders engaged in any kind of road riding. - Lightweight full aluminum construction - Short cage is compatible with double cranksets and a 30T max cassette

XLE Rear Derailleur for 10-speed Shimano drivetrains - For MEGA Sprockets w/large cog size 36-42T - Compatible with single, double, or triple cranksets - Total Capacity: 47T

Not everyone needs the added chain retention of a clutch derailleur. For those riders, we offer a non-clutch version of our innovative ADVENT derailleur. Without the clutch in the system, the shifting effort at the lever is reduced. While still capable of handling an 11-42T cassette, the rear derailleur is the perfect choice for commuter or touring bikes that can benefit from using a wide-range gearing system. - Direct cable routing for smooth and responsive shifting - No clutch for ultra-smooth shifting - Compatible with 11-42T 9-speed cassettes - Compatible with ADVENT shifters only

XLE Rear Derailleur for 10-speed Shimano drivetrains. Set the cluch to ON for maximum chain stability, or OFF for lower shifting effort. - For MEGA Sprockets: w/large cog size 36-42T - Compatible with single, double, or triple cranksets - Total Capacity: 47T

Designed with the rider in mind, the ADVENT rear derailleur packs trail-ready features into an attainable wide-range drivetrain system. The derailleur kinematics are precisely tuned to use a more direct cable path, making the shifting feel consistent across the lowest and highest gears, and everything in between. - Clutch provides stronger chain management over rough terrain - Ratchet-and-pawl clutch is easily adjustable and repairable - Direct cable routing for smooth, responsive shifting - Compatible with 11-42T 9-speed cassettes - Compatible with ADVENT shifters only

XCD rear derailleurs are compatible with Shimano mountain shifters and wide-range cassettes. CNC-machined rigid construction partnered with enhanced chain stability allows you to power up and down through a variety of terrains. - Compatible with wide-range cassettes - Strong spring tension for enhanced chain stability - Clutch mechanism can be turned on to maintain chain tension or off to allow for easier shifting and easier wheel swaps - Full aluminum lightweight construction - Medium cage compatible with Shimano 11-speed mountain systems and fits 1x setups with cassette cogs up to 46T - Long cage compatible with Shimano 10-speed mountain systems and fits 1x/2x/3x setups with cassette cogs up to 42T

With a race-worthy weight and the right gearing for any situation, microSHIFT's top-of-the-line ADVENT X rear derailleur delivers high-end performance without high-end headaches. By using a 10-speed chain and wide range 11-48T cassette with predictable, evenly spaced gear steps, ADVENT X allows you to find the right gear even in challenging conditions. Add in microSHIFT's proprietary ratchet-and-pawl clutch, larger pulleys with taller teeth for better chain retention, and metric adjustment hardware, and you've got everything you want and nothing you don't. - Compatible with ADVENT X 10-speed drivetrains only - Compatible with standard 10-speed chains - Ratchet-and-pawl clutch provides chain security and can be turned on and off with a switch - Metric adjustment hardware - Larger pulley and taller teeth for better chain security and higher ride height

Arsis is the pinnacle of microSHIFT's road component line, delivering precise shifting under pressure. - Carbon outer link with stiff and precise response - Sealed bearing pulleys - Compatible with Shimano 11-speed road

Replacement pulley set with ceramic bearings. Compatible with 7,8,9, and 10-speed Campagnolo, Shimano, and SRAM drivetrains.

- Machined aluminum tensioner bolts on to derailleur hanger - Adjustable spring tension and dual floating pulley - For frames with vertical dropouts - Fits hubs with 22-28Mm chainline (From inside of dropout) - Made in USA

SRAM's X4 Rear Derailleur provides precise, dependable shifting along with long-term durability. Its aluminum and steel construction delivers through the roughest trail, while SRAM's 1:1 actuation ratio and direct cable routing provide quick, reliable shifts. This derailleur is compatible with 7- or 8-speed drivetrains.

SRAM's X5 9-Speed Rear Derailleur provides precise, dependable shifting along with long-term durability. Its aluminum construction keeps the weight down, while SRAM's 1:1 actuation ratio and direct cable routing provide quick, reliable shifts.

Incredibly fast, astonishingly quiet, and impressively precise—fly through all 11 gears with SRAM's Rival 22 Rear Derailleur. It takes advantage of SRAM's Exact Actuation technology for precision shifts every time. Carefully shaped jockey wheels work together with the sculpted chain pulley cage for lightning-fast, ultra-precise shifts, and an elastomer coating applied to the jockey wheels makes for extra quiet operation. Aluminum inner and outer cages, aluminum links, and stainless steel hardware keep the durable Rival 22 at a svelte 180 grams.

SRAM's GX 2x10 rear derailleur provides incredible shifting speed and precision. Exact Actuation technology eliminates slop and shifting variation. Roller Bearing Clutch technology delivers maximum drivetrain stability—even through the most punishing terrain. And with Cage Lock technology, wheel removal and installation are easier than ever.

Incredibly fast, astonishingly quiet and impressively precise—fly through all 11 gears with SRAM's Rival 22 Rear Derailleur. It takes advantage of SRAM's Exact Actuation technology for precision shifts every time. Carefully shaped jockey wheels work together with the sculpted chain pulley cage for lightning-fast, ultra-precise shifts, and an elastomer coating applied to the jockey wheels makes for extra quiet operation. Aluminum inner and outer cages, aluminum links, and stainless steel hardware keep the durable Rival 22 at a svelte 191 grams. Plus, SRAM's WiFLi technology delivers a wider range of gears than your standard triple, faster shifts through two chainrings and every gear on the rear cassette, all with significant weight savings.

SRAM's XX1 Ceramic Bearing Rear Derailleur Pulleys run on super-smooth, efficient ceramic bearings so your drivetrain rolls with ease. They are lighter than conventional pulleys and even come with SRAM's ceramic-bearing grease in an easy-to-use 10ml syringe.

SRAM’s Apex 1 drivetrain provides the gear range and the shifting simplicity to let you simply go where you want. The Apex 1 rear derailleur makes that gearing choice a reality with clean, crisp shifts, thanks to SRAM’s X-Horizon geometry and their Roller Bearing Clutch. - X-Horizon design reduces shift force, eliminates ghost shifting and chain slap - Compatible with 10-speed and 11-speed SRAM 1x road systems - With Cage Lock technology, wheel removal and installation are easier than ever - Equipped with Roller Bearing Clutch - Large upper pulley offset automatically adjusts chain gap - Weight: 314 grams - Outer Cage: Steel - Compatibility: 10-speed and 11-speed SRAM 1x road systems - Inner Cage: Steel - Cage Size: Long - Max Tooth: 42t - Pulleys: Sealed cartridge bearings - Pull: Exact Actuation

The SRAM NX X-HORIZON rear derailleur provides the same smooth, reliable shifting action as XX1—from the larger upper pulley offset to the 12-tooth X-SYNC pulley wheels. By eliminating unwanted chain movement, X-HORIZON shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with Cage Lock technology, wheel removal and installation are easier than ever. - X-HORIZON design that reduces shift force, ghost shifting and chain slap - 12-tooth X-SYNC pulley wheels - Fully compatible with all SRAM MTB 1x drivetrains - Most affordable fully featured 1x rear derailleur in the industry - Speeds: 11-speed - Weight: 322 grams - Color: Black - Compatibility: X-ACTUATION - Bearings: Steel - Cage Size: Long - Max Tooth: 42

SRAM's Apex Rear Derailleur features cold-forged aluminum construction for sweet shifting, dependability and low weight. Designed for SRAM's 10-speed road drivetrains and featuring their Exact Actuation Technology, Apex will provide you with perfect shifting every time.