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Rear

SRAM Red eTAP Electric Road Kit
$1,743.00
Step up to the next generation in shifting with SRAM's wireless RED eTAP electric road drivetrain kit. Each kit contains: - SRAM RED eTAP shift/brake levers - SRAM RED eTAP wireless front and rear derailleurs - SRAM eTAP batteries - Battery charger - USB stick - Quick-start guide
Campagnolo Super Record EPS Rear Derailleur
$780.00
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.
SRAM RED eTap AXS Rear Derailleur
$710.00
The heart of the connected cadre. The SRAM RED eTap AXS rear derailleur is AXS enabled for easy personalization and designed for both 1x and 2x systems. Advanced chain management keeps it silent and secure no matter the terrain. The derailleur also comes with faster pulleys, bearings, motors and signals, improving speed in every way. - SRAM AXS enabled for easy personalization - Orbit chain management technology keeps drivetrain quiet and secure - A single rear derailleur for all gearing combinations, including 1x and 2x - Improved motor and signal travel for faster shifting - Larger X-SYNC pulleys and ceramic bearings for increased durability and efficiency - Compatible with existing eTap batteries - Battery sold separately
SRAM X01 Eagle AXS Rear Derailleur
$700.00
It's an all-new derailleur that's specifically designed and optimized to be motor-driven instead of cable-actuated. AXS powered components enable customization and scale to an individual rider's liking via the AXS App. It features a shorter cage for 10mm more ground clearance, with more chain wrap on the cassette to sit slightly further forward, and further inboard from mechanical Eagle. The Eagle AXS derailleur is smart enough to protect itself thanks to its incredibly resilient Overload Clutch. In the event of an impact, the motor gearbox disengages, giving the derailleur freedom to move, and instantly returns back to its position for a seamless experience for the rider. The system is tested to IP69K water and dust proofing standard for creek crossings, mud splatterings and the resulting post-ride pressure washings. - Enduro focus and trail ready - Forged aluminum cage - Stainless hardware - Black/Polar colorways - Eagle technology - Overload Clutch protection - AXS enabled componentry software that makes it possible to both program and personalize new SRAM and RockShox components - System is completely water and dust proof to IP69K - Eagle AXS is designed to work with X-DOME Eagle cassettes only, providing the most precise, silent, and reliable shift performance available.
SRAM XX1 Eagle AXS Rear Derailleur
$700.00
More than a mechanical derailleur with a battery and a motor bolted on, the Eagle AXS derailleur is the heart of the whole AXS system. It features a shorter cage for 10mm more ground clearance, with more chain wrap on the cassette to sit slightly further forward, and further inboard from mechanical Eagle. Instantaneous shifts from a single touch even while under World Cup-winning chain loads recorded in the heat of racing and affirmed in the test lab. Tested to IP69K water and dust proofing standard so whatever race day brings, you’re ready. - XC focus and trail ready - Carbon cage - Ti hardware - Rainbow colorway - Eagle technology - Overload Clutch protection - AXS enabled componentry software that makes it possible to both program and personalize new SRAM and RockShox components - System is completely water and dust proof to IP69K - Eagle AXS is designed to work with X-DOME Eagle cassettes only, providing the most precise, silent, and reliable shift performance available. - Battery sold separately
Shimano Dura-Ace 9150 Di2 11-Speed Rear Derailleur
$659.99
- Ergonomic Shifting Operation Without Stress - Shimano Synchronized Shift - Low Profile Rear Derailleur Design - Shimano Shadow Rd - Race Endurance For Less Damage In Crush - Maintains Compact And Smooth Appearance - Maximum Sprocket: 30T - Minimum Sprocket: 11T - Maximum Front Difference: 16T - Total Capacity: 35T
Shimano XTR Di2 Rear Derailleur (Long Cage)
$630.99
Shimano's unbelievable Di2 technology has made the leap to the trails with their XTR Di2 drivetrain. This rear derailleur features all of the race-day performance you've come to expect from XTR, and the unrivaled stability, speed, and performance of an electronic drivetrain. Since there aren't any cables to stretch or housing to create friction, shift performance stays amazingly perfect, delivering flawless shifts any time, under any condition. System communication with the front derailleur eliminates chain rub and, if you prefer, the rear derailleur can be optimized to use Shimano's Synchronized Shift technology.
Shimano XTR Di2 Rear Derailleur (Medium Cage)
$630.99
Shimano's unbelievable Di2 technology has made the leap to the trails with their XTR Di2 drivetrain. This rear derailleur features all of the race-day performance you've come to expect from XTR, and the unrivaled stability, speed, and performance of an electronic drivetrain. Since there aren't any cables to stretch or housing to create friction, shift performance stays amazingly perfect, delivering flawless shifts any time, under any condition. System communication with the front derailleur eliminates chain rub and, if you prefer, the rear derailleur can be optimized to use Shimano's Synchronized Shift technology.
Campagnolo Record EPS Rear Derailleur
$625.00
Italian beauty meets electronic precision in Campagnolo's brilliant Record EPS Rear Derailleur. Campagnolo uses an advanced parallelogram design for impeccable, lightning-fast shifting of up to all 11 gears with a single button push. Stop on any gear in between and the position sensor makes micro-adjustments to ensure perfect alignment every time. The construction pairs 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.
CeramicSpeed OSPW X Oversized Pulley Wheel System for SRAM Eagle Mechanical - Coated, Alloy Pulley, Carbon Cage, Gold
$619.00
The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design. - Features a 14-tooth upper pulley wheel and a 18-tooth lower pulley wheel to provide absolute optimization of the rear derailleur - The narrow wide tooth profile ensures durable chain retention - Robust cage is crafted from carbon reinforced polyamide for durability and light weight - Three spring tension settings allow you to customize performance and reduce chain drag - Offers up to 40% efficiency savings, compared to the stock SRAM Eagle cage - Fits 10-50 tooth cassette range
CeramicSpeed Oversized Pulley Wheel System for SRAM Red/Force AXS - Coated, Alloy Pulley, Carbon Cage, Black
$619.00
The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design. - Features a 15-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimization of the rear derailleur - Robust cage crafted from carbon reinforced polyamide for durability and light weight - Two spring tension settings allow customized setup based on ride conditions - Fits cassettes from 10 to 33-tooth - Coated bearing races increase bearing service life by increasing hardness of race and reducing corrosion - Only compatible with SRAM RED AXS and SRAM Force AXS
CeramicSpeed Oversized Pulley Wheel System Coated Bearings SRAM eTap 11-Speed Black Pulleys and Black Cage
$599.00
The system is compatible with SRAM Etap 11speed - High quality bearings have 3-5 times greater longevity than commonly used pulley wheels on the market - Aluminum Pulley Assembly / Carbon Cage - 17-tooth aluminum pulley wheels - Color: Black Pulleys and Black Cage
CeramicSpeed Oversized Pulley Wheel System Coated Bearings Shimano 9100 - Limted Edition Blue
$599.00
The Oversized Pulley Wheel System (OSPW System) offers increased drivetrain efficiency with two 17-tooth alloy pulley wheels and extremely low friction pulley bearings. - Grade 3 Silicon Nitride balls - Hardened races - Reinforced polyamide cage and non-contact seals - Hand built in Denmark - Carbon fiber cage - Precision machined aluminum pulleys
SRAM RED eTap Rear Derailleur
$571.12 - $589.60 $610.00 - $649.00 Up to 12% Off
The SRAM RED eTap rear derailleur executes shifts the instant you demand it, with military precision. Wirelessly. It’s easy to set up, clean in appearance and delightfully uncomplicated. Mechanical necessities such as a carbon pulley cage, ceramic pulley bearings, and anodized alloy artfully blend with proprietary electronic advancements to deliver a shifting wonder. - Compatible with SRAM RED eTap shift/brake controls - Max tooth size: short-cage - 28T; mid (WiFLi) cage - 32t - SRAM RED eTap shifting logic - Wireless connection via AIREA network for fast and clean installation - Exact Actuation provides precise gear selections - Designed to work with SRAM PowerGlide and PowerdomeX cassettes - Speeds: 11-speed - Weight: 239 grams (short cage with battery) - Outer Cage: Carbon - Compatibility: SRAM RED eTap, PowerdomeX & PowerGlide Cassette - Inner Cage: Carbon - Finish: Black - Pulleys: Ceramic - Pull: Exact Actuation
Campagnolo Super Record 11 Medium Cage Rear Derailleur
$525.00
The Super Record groupset is the best Campagnolo mechanical transmission. It is the choice that even top professionals rely upon for improved performance, reliability and precision. 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. - Carbon fiber front plate with 3 lightening holes, titanium screws, and outer carbon cage plate - Campagnolo Ultra-Shift parallelogram maximizes stiffness, shifting speed and precision - - Lightweight technopolymer pulleys, lower pulley with ceramic ball bearings - Compatible with Potenza and model year 2015 and newer Chorus, Record and Super Record - Not compatible with pre 2015 Campagnolo drivetrains - Drivetrain Speeds: 11 - Cage Length: Medium - Chain Wrap Capacity (teeth): 37 teeth - Largest Cog: 32
Campagnolo Super Record 11 Short Cage Rear Derailleur
$525.00
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
CeramicSpeed OSPW X Oversized Pulley Wheel System for SRAM Eagle AXS - Alloy Pulley, Carbon Cage, Black
$519.00
The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design. - Features a 14-tooth upper pulley wheel and a 18-tooth lower pulley wheel to provide absolute optimization of the rear derailleur - The narrow wide tooth profile ensures durable chain retention - Robust cage is crafted from carbon reinforced polyamide for durability and light weight - Three spring tension settings allow you to customize performance and reduce chain drag - Offers up to 40% efficiency savings, compared to the stock SRAM Eagle cage - Fits 10-50 tooth cassette range
CeramicSpeed OSPW X Oversized Pulley Wheel System for SRAM Eagle Mechanical - Alloy Pulley, Carbon Cage, Black
$519.00
The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design. - Features a 14-tooth upper pulley wheel and a 18-tooth lower pulley wheel to provide absolute optimization of the rear derailleur - The narrow wide tooth profile ensures durable chain retention Robust cage is crafted from carbon reinforced polyamide for durability and light weight - Three spring tension settings allow you to customize performance and reduce chain drag - Offers up to 40% efficiency savings, compared to the stock SRAM Eagle cage - Fits 10-50 tooth cassette range
CeramicSpeed Oversized Pulley Wheel System Carbon Alloy Pulley, Carbon Cage, Black SRAM Red/Force AXS
$519.00
The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design. - Features a 15-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimization of the rear derailleur - Robust cage crafted from carbon reinforced polyamide for durability and light weight - Two spring tension settings allow customized setup based on ride conditions - Fits cassettes from 10 to 33-tooth - Features standard hardened steel bearing races - Only compatible with SRAM RED AXS and SRAM Force AXS
CeramicSpeed Oversized Pulley Wheel System SRAM eTap 11-Speed Non-Coated Red Pulleys and Black Cage
$499.00
The system is compatible with SRAM eTap 11-Speed - High quality bearings have 3-5 times greater longevity than commonly used pulley wheels on the market - Aluminum Pulley Assembly / Carbon Cage - 17-tooth aluminum pulley wheels - Color: Red Pulleys, Black Cage
CeramicSpeed Pulley Wheel Oversized SRAM AXS Road 12-Speed, Black Coated
$499.00
The 12-tooth narrow-wide design provides exceptional shift performance. The narrow-wide design delivers precise engagement of the chain, both on and off the pulley wheels. This product is designed, developed and hand-built in Denmark and offers improved chain friction performance and increased longevity.
CeramicSpeed Pulley Wheel Oversized SRAM AXS Road 12-Speed, Red Coated
$499.00
The 12-tooth narrow-wide design provides exceptional shift performance. The narrow-wide design delivers precise engagement of the chain, both on and off the pulley wheels. This product is designed, developed and hand-built in Denmark and offers improved chain friction performance and increased longevity.
SRAM Force eTap AXS Rear Derailleur
$490.00
One rear derailleur to rule them all. The SRAM Force eTap AXS rear derailleur is designed for both 1x and 2x systems. It capitalizes on X-Range gearing technology for enhanced range and chain management and features larger pulleys for improved durability and efficiency. Strong, smooth, quiet and AXS enabled. - SRAM AXS enabled, allowing easy personalization - Orbit chain management technology keeps the drivetrain quiet and secure - A single rear derailleur for all gearing combinations, including 1x and 2x - Larger X-SYNC pulleys for increased durability and efficiency - Compatible with existing eTap batteries
Campagnolo Super Record 12 Speed Rear Derailleur
$485.00
The new Super Record 12x2 Speed rear derailleur: pure technology. Functionality combines with the highest quality materials and exceptional weight to generate unparalleled performance. A connector rod has been added to the new Super Record 12x2 Speed rear derailleur, as well as a unidirectional front rocker arm in carbon fiber that further reduces the weight of the component, lends uniformity to the aesthetics, and magnifies the incredible performance of Campagnolo's signature component. The new Super Record 12x2 Speed rear derailleur can be described as a sculpture with an innovative shape that uses 3D Embrace technology to better cradle the smaller sprockets. The technology serves a double purpose: it enables the chain to maintain optimum traction at all times, thus increasing the speed, power, and precision of shifting; it also ensures that the rear derailleur is always at an ideal distance from the sprockets. The rocker arm was optimized to interface with sprockets that have from 11 to 32 teeth, thus requiring only one version for all of the sprocket packs available. The upper body of the new Super Record 12x2 Speed rear derailleur is made of technopolymer plastic reinforced with carbon fiber, which contributes to the robustness and lightness of the component, whilst the titanium stop screw ensures a reduction in weight and matches even better with the technical and aesthetic aspects of the component.
CeramicSpeed Pulley Wheel Oversized SRAM AXS Road 12-Speed, Black
$399.00
The 12-tooth narrow-wide design provides exceptional shift performance. The narrow-wide design delivers precise engagement of the chain, both on and off the pulley wheels. This product is designed, developed and hand-built in Denmark and offers improved chain friction performance and increased longevity.
CeramicSpeed Pulley Wheel Oversized SRAM AXS Road 12-Speed, Red
$399.00
The 12-tooth narrow-wide design provides exceptional shift performance. The narrow-wide design delivers precise engagement of the chain, both on and off the pulley wheels. This product is designed, developed and hand-built in Denmark and offers improved chain friction performance and increased longevity.
CeramicSpeed Shimano 12s XT/XTR MTB Pulley Wheels - Black
$399.00
The CeramicSpeed Pulley Wheels for Shimano XT/XTR odders a unique symetrical 14-tooth narrow-wide design that provides exceptional shift performance. The narrow-wide design delivers precise engagement of the chain, both on and off the pulley wheels. The increased pulley size, compared to stock, reduces chain friction. The pulleys have a lightweight machined alloy body for durability and long life, and are developed, designed and handbuilt in Denmark.
CeramicSpeed Pulley Wheels Coated, Alloy, Limited Edition Blue, SRAM
$379.00
Pulley wheels that reduce friction, last 3-5 time longer than stock high-end pulleys, and reduce overall drag within the drivetrain. - Grade 3 Silicon Nitride balls - Hardened races - Reinforced polyamide cage and non-contact seals - Hand built in Denmark - Precision machined aluminum pulleys - Coated races increase bearing service life by increasing hardness of race and reducing corrosion - SRAM 11-Speed
CeramicSpeed Pulley Wheels SRAM Eagle
$379.00
The system is compatible with SRAM Eagle 12-Speed Pulley wheels that reduce friction, last 3-5 time longer than stock high-end pulleys, and reduce overall drag within the drivetrain. - Grade 3 Silicon Nitride balls - Hardened races - Reinforced polyamide cage and non-contact seals - Hand built in Denmark - Precision machined aluminum pulleys - Stainless races
CeramicSpeed Pulley Wheels, Sram 1-11 for XX1/X01 Black
$379.00
CeramicSpeed Pulley Assemblies - Grade 3 ceramic balls, hardened races and low-friction seals - Precision machined aluminum pulleys - Spacers included where applicable
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