Components

—$570

The Shimano Deore XT M8250 long-cage derailleur paired with a standard 10-51t M8200 cassette (cassette sold separate) gives all types of riders the range and robustness to tackle every trail on the mountain. With built-in Automatic Impact Recovery, a new, impact-deflecting wedge shape, and simple covered-pulley solutions, this derailleur stands up to harsh trail impacts and still retains its lightning-quick shifting speed and high level of performance. Di2 technology results in precise and clean wireless shifting Pinpoint, ultra-fast shifting, and a no-sacrifice 510% gear range Wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity Automatic Impact Recovery function instantly returns the derailleur motor to its original position after impact Shimano Shadow ES technology delivers a wedge-shaped design that reduces the derailleur s front-facing surface area and eliminates edges that could catch on rocks and roots Tucked safely inside an enclosed space, the battery won t budge even in rough terrain, while remaining easily removable for charging Solid pulley and shielded pulley teeth prevent trail debris from jamming up your flow Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 41 Color Black/Gray Drivetrain Speeds 12 Largest Cog 51 Rear Der/Shifter Compatibility Shimano Mountain Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano Deore XT RD-M8250-SGS Di2 12-Speed Wireless Rear Derailleur Rear Derailleur UPC: 192790747743

by Shimano

—$665

The Shimano Di2 XTR M9250 wireless long cage derailleur paired with a standard 10-51t M9200 cassette (cassette sold separately) gives riders and racers the speed, range, and robustness to tackle every trail on the mountain. With built-in Automatic Crash Recovery, an impact-deflecting shape, and simple covered-pulley solutions, this derailleur stands up to harsh trail impacts and still retains its lightning-quick shifting speed and top-level performance Wireless Di2 paired with HYPERGLIDE+ technology result in smooth, precise and instantaneous shifts Wide link structure, skid-plate design, durable carbon plate and solid pulley add robustness and longevity Automatic Impact Recovery function instantly returns the derailleur motor to its original position after impact Shadow ES provides a slimmer, stronger evolution of Shimano s pioneering chain-stabilizing Shadow concept Wedge shape of Shimano s most survivable rear derailleur to-date avoids more direct impacts, and smoothly glances off rocks if there is a hit Tucked safely inside an enclosed space, the battery won t budge even in rough terrain, while remaining completely removable for charging Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 41 Color Black/Silver Drivetrain Speeds 12 Largest Cog 51 Rear Der/Shifter Compatibility Shimano Mountain Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 391 Shimano XTR RD-M9250-SGS Di2 12-Speed Wireless Rear Derailleur Rear Derailleur UPC: 192790290546

by Shimano

—$770

Gravel throws just about everything at your bike, and the RED XPLR AXS rear derailleur will happily take it all. Bring on the sticks, stones, and airport baggage abuse because the Full Mount derailleur design fits onto frames with the hangerless interface to make for the most robust and reliable gravel drivetrain possible (Requires frame with UDH interface). No adjustment screws mean setup is simpler than ever. And a surprise stick is no match for the Magic Wheel, as the debris-resistant lower pulley keeps the chain moving at all times. Purpose built for gravel, this 1x specific unit prioritizes shift precision and chain management no matter the terrain or conditions. 1x specific for use with 10-46t XPLR 13-speed cassette and SRAM road Flattop chains Hangerless Interface and Full Mount attachment allow for the most precise shifting and the ultimate resistance to impact (Requires frame with UDH interface) Carbon cage and ceramic pulley bearings Simple setup with no adjustment screws Superior chain management with MTB-inspired spring clutch Magic Wheel keeps the chain moving, even if debris enters the lower pulley Replaceable and rebuildable parts Compatible with existing AXS batteries (Sold separately) Item Specifications Chain Wrap Capacity (teeth) 36 Color Black/Silver Drivetrain Speeds 13 Largest Cog 46 Rear Der/Shifter Compatibility SRAM eTap AXS SRAM RED XPLR AXS 13-Speed Rear Derailleur E1 Rear Derailleur UPC: 710845899829

by SRAM

—$70

The Shimano 105 12-speed rear derailleur combines the smooth and stable shifting that is a staple of Shimano Shadow RD design with direct mount compatibility and a wider gear range capacity. Shadow RD offers a low-profile design with single tension construction that prevents the derailleur from hitting the chainstay in rough riding conditions Direct Mount feature is design for large contempory frames with large section chainstays, in particular mountain bikes with thru-axle dropouts Wider gear range capacity and stable shifting performance Compatible with HG 12-speed chains 41t total capacity 36t low sprocket maximum 34t low sprocket minimum Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 41 Color Black Drivetrain Speeds 12 Largest Cog 36 Rear Der/Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 249 Shimano 105 RD-R7100 Rear Derailleur Rear Derailleur UPC: 192790819013

by Shimano

—$110

Adopting all the technologies that provide the fastest, quietest shifting available, the new SRAM Force 22 Rear Derailleur has been designed with our Exact Actuation™ technology for precise, efficient shifting throughout the extended gear range. We have given and even refining tooth geometry of the jockey wheel. The result is that the chain that runs smoother and quieter than ever before. With all the additional technologies we’ve managed to keep the weight the same, at well under 200 grams. Carbon fiber and aluminum construction Cartridge bearing pulleys Stainless Steel hardware Item Specifications Weight 178g Intended Use Road Cassette Spacing Shimano/SRAM 11 Shifter/Derailleur Compatibility SRAM 11 Largest Cog 28teeth Chain Wrap Capacity 33teeth Derailleur Action Top-Normal (Traditional) Cage Length Short SRAM Force 22 Rear Derailleur Rear Derailleur UPC: 710845728938

by SRAM

—$445

Shimano's GRX RX825 Di2 12-speed rear derailleur features a built-in wireless connectivity unit and charging port, ensuring fast and reliable shifting for mixed-terrain riding and easy recharging. Integrated Shadow RD+ technology prevents chain slap and ensures precise shifting even on rough terrain. Thanks to built-in ON/OFF switch, wheel removal is easy too. The RD-RX825 is compatible with 11-34t and 11-36t 12-speed cassettes and supports Full or Semi-Synchronized shift modes, enhancing rider customization. Integrated wireless unit, charging port, and switch allows a compact design Offers fast and reliable shifting on rough terrain Adjustable chain stabilizer prevents chain slap Shimano Shadow RD+ offers a quiter drivetrain by utilizes a stablizer to reduce chain slap and provides a simple solution for chain drops Gravel-tuned clutch tension features a switch stabilizer ON/OFF to match terrain - ON for gravel, OFF for smooth roads LED status indicator to easier identify battery life, pairing, adjust mode, etc. Top sprocket: Max. 11t/Min. 11t Low sprocket: Max. 36t/Min. 34t Total Capacity: 40t Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 40 Color Black Drivetrain Speeds 12 Largest Cog 36 Rear Der/Shifter Compatibility Shimano Road Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano GRX RD-RX825 Di2 Rear Derailleur Rear Derailleur UPC: 192790310893

by Shimano

—$435

Wireless Di2 shifting designed for E-MTB and LINKGLIDE compatibility. The durable Deore RD-M6260 long-cage 11-speed rear derailleur taps into proven wireless Di2 shifting technology and other strengths of the Deore Di2 groupset, while pulling power from the bike's main battery via E-TUBE cable port. The cable delivers a stable power supply and connectivity with the drive unit, eliminating the need to carry a separate back-up battery specifically for the rear derailleur. The Direct Wired RD-M6260-11L pulls power from your existing e-bike battery to deliver a constant supply of shifts A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity Automatic Impact Recovery function instantly returns the derailleur to its original position after impact Features Shimano Shadow ES: A slimmer, stronger evolution of Shimano's pioneering chain-stabilizing Shadow RD+ concept Added derailleur durability combined with a LINKGLIDE cassette (cassette sold separately) extends the drivetrain's lifespan Intelligent AUTO SHIFT E-Bike sensors and LINKGLIDE technology provide smooth, quick gear changes while you pedal so you are always in the right gear FREE SHIFT E-Bike technology allows you to shift as you coast on flats or downhills Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 39 Color Black/Gray Designed for ebike Yes Drivetrain Speeds 11 Largest Cog 50 Rear Der/Shifter Compatibility Shimano Mountain Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano Deore RD-M6260-11L Di2 Wired Power 11-Speed E-MTB Rear Derailleur Rear Derailleur UPC: 192790748672

by Shimano

—$435

Pairing the new Deore -RD-M6250 long-cage derailleur with a standard 10-51t cassette (cassette sold separate) gives all types of riders the range and robustness to tackle every trail on the mountain at a more approachable cost. With built-in Automatic Impact Recovery, an impact-deflecting wedge shape, steel plate, and solid pulley, this derailleur stands up to harsh trail impacts, while retaining the precise shifting qualities for which Di2 is known. Other features include integrated on-board battery that's protected by the linkage and easily removable for recharging and connectivity with cycling computers and other third-party devices. Di2 technology results in precise and clean wireless shifting A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity Automatic Impact Recovery function instantly returns the derailleur to its original position after impact Features Shimano Shadow ES: A slimmer, stronger evolution of Shimano's pioneering chain-stabilizing Shadow RD+ concept Tucked safely inside an enclosed space, the battery won t budge even in rough terrain, while remaining easily removable for charging The solid pulley and shielded pulley teeth prevent trail debris from jamming up your flow Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 41 Color Black/Gray Drivetrain Speeds 12 Largest Cog 51 Rear Der/Shifter Compatibility Shimano Mountain Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano Deore RD-M6260 Di2 Wireless 12-Speed Rear Derailleur Rear Derailleur UPC: 192790748665

by Shimano

—$570

Wireless Di2 shifting designed for E-MTB and HYPERGLIDE+. The ultra-durable RD-M8260 long-cage, rear derailleur delivers features all riders can appreciate. It taps into proven wireless Di2 shifting technology and the strengths of other XT offerings, while pulling power from the bike's main battery, delivering a stable power supply, and eliminating the need for a back-up battery. Direct Wired: The derailleur pulls power from your existing e-bike battery to deliver a constant supply of shifts A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity SHADOW ES: A slimmer, stronger evolution of SHIMANO's pioneering chain-stabilizing SHADOW RD+ concept E-Bike Technology: Intelligent AUTO SHIFT sensors and HYPERGLIDE+ technology provide smooth, quick gear changes while you pedal so you are always in the right gear FREE SHIFT E-Bike Technology: Keep your speed and shift whenever. FREE SHIFT technology allows you to shift as you coast on flats or downhills Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 41 Color Black Designed for ebike Yes Drivetrain Speeds 12 Largest Cog 51 Rear Der/Shifter Compatibility Shimano Mountain Di2 Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano XT RD-M8260 Ebike Rear Derailleur Rear Derailleur UPC: 192790290560

by Shimano

—$570

Wireless Di2 shifting designed for E-MTB and HYPERGLIDE+. The ultra-durable RD-M8260 long-cage, rear derailleur delivers features all riders can appreciate. It taps into proven wireless Di2 shifting technology and the strengths of other XT offerings, while pulling power from the bike's main battery, delivering a stable power supply, and eliminating the need for a back-up battery. Direct Wired: The derailleur pulls power from your existing e-bike battery to deliver a constant supply of shifts A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity SHADOW ES: A slimmer, stronger evolution of SHIMANO's pioneering chain-stabilizing SHADOW RD+ concept E-Bike Technology: Intelligent AUTO SHIFT sensors and HYPERGLIDE+ technology provide smooth, quick gear changes while you pedal so you are always in the right gear FREE SHIFT E-Bike Technology: Keep your speed and shift whenever. FREE SHIFT technology allows you to shift as you coast on flats or downhills Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 39 Color Black Designed for ebike Yes Drivetrain Speeds 11 Largest Cog 50 Rear Der/Shifter Compatibility Shimano Mountain Di2 Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano XT RD-M8260 Ebike Rear Derailleur Rear Derailleur UPC: 192790290591

by Shimano

—$325

The brains of the operation. The Rival AXS 12-Speed rear derailleur is the choice for road riding, for all cassette sizes from 10-28t to 10-36t, for any terrain you cover. Precise wireless shifting with advanced chain management lets you ride with confidence anywhere. Chain management technology keeps the drivetrain quiet and secure AXS enabled for easy setup, personalization, and reliability Compatible with both 1x and 2x drivetrains Compatible with cassettes from 10-28t to 10-36t Compatible with existing AXS batteries (Sold separately) Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 42 Color Black Drivetrain Speeds 12 Largest Cog 36 Rear Der/Shifter Compatibility SRAM eTap AXS Rear Derailleur Mount Type 10x1 Standard Weight 306 SRAM Rival eTAP AXS Rear Derailleur E1 Rear Derailleur UPC: 710845916809

by SRAM

—$570

Optimized for impact survivability, the 12-speed XT RD-M8250 medium cage rear derailleur is the top choice for everyday trail riding, offering unmatched durability, quick, precise shifts and added weight savings when paired with the 9-45t compact cassette (cassette sold separately). Featuring all-new wireless Di2 shifting, automatic impact recovery, a 500% gear range and 23 millimeters of additional ground clearance for a bash-free ride, the M8250 rear derailleur is built to be relentlessly reliable so you are free to focus solely on the trail ahead. Di2 technology results in precise and clean wireless shifting Pinpoint, ultra-fast shifting, and a no-sacrifice 500% gear range Wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity Automatic Impact Recovery function instantly returns the derailleur motor to its original position after impact Shimano Shadow ES technology delivers a wedge-shaped design that reduces the derailleur s front-facing surface area and eliminates edges that could catch on rocks and roots Tucked safely inside an enclosed space, the battery won t budge even in rough terrain, while remaining easily removable for charging Solid pulley and shielded pulley teeth prevent trail debris from jamming up your flow Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 36 Color Black/Gray Drivetrain Speeds 12 Largest Cog 45 Rear Der/Shifter Compatibility Shimano Mountain Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano Deore XT RD-M8250-GS Di2 12-Speed Wireless Rear Derailleur Rear Derailleur UPC: 192790748269

by Shimano

—$930

The Shimano Dura-Ace RD-R9250 rear derailleur integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise shifting worthy of any podium. A single cage length shifts cassettes from 11-28 to 11-34, offering exceptional versatility. Ultra-fast rear Di2 shifting Compact design includes an integrated wireless unit, charger, switch Wider range capacity Max. low sprocket: 34t CFRP rear derailleur plate LED status indicator Battery indicator, pairing, adjust mode etc. Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 37 Color Black Drivetrain Speeds 12 Largest Cog 34 Rear Der/Shifter Compatibility Shimano Road Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano Dura-Ace RD-R9250 Di2 12-Speed Rear Derailleur Rear Derailleur UPC: 192790240954

by Shimano

—$470

With the fast and accurate Di2 shifting technology, the Shimano 12-speed Ultegra RD-R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes. Compact design includes an integrated wireless unit, charger, switch Wider range capacity Max. low sprocket 34t LED status indicator Battery indicator, pairing, adjust mode etc. Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 39 Color Black Drivetrain Speeds 12 Largest Cog 34 Rear Der/Shifter Compatibility Shimano Road Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano Ultegra RD-R8150 Di2 12-Speed Rear Derailleur Rear Derailleur UPC: 192790240961

by Shimano

—$325

The Shimano 105 RD-R7150 Di2 12-speed rear derailleur completes a shift in the blink of an eye with its high-performance motor and optimized link structure. This is the hub of the Shimano Di2 system, with the charging port, indicator LEDs, adjustment switches and more integrated into a compact package. Low-profile Shimano Shadow RD design reduces damage from contact and falls Receive the wireless shifting signal from the shift lever Check the battery level and Bluetooth/ANT pairing success with your cycle computer/smartphone/tablet Allows selection of preferred shift mode and view adjustment mode information (if you wish to tweak or tune your rear derailleur) Smartphone/tablet connectivity via E-TUBE PROJECT Item Specifications Chain Wrap Capacity (teeth) 41 Color Black Drivetrain Speeds 12 Largest Cog 36 Rear Der/Shifter Compatibility Shimano Road Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 302 Shimano 105 RD-R7150 Di2 Rear Derailleur Rear Derailleur UPC: 192790234229

by Shimano

—$590

The SRAM X01 Eagle AXS 12-speed rear derailleur is specifically designed and optimized to be motor-driven instead of cable-actuated to operate with other Eagle AXS components. Designed for a max 52t large cog The AXS powered component enables customization and scales to an individual rider s liking via the SRAM 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 The derailleur is designed with a 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 splattering and the resulting post-ride pressure washings Battery sold separately SRAM X01 Eagle AXS Rear Derailleur Rear Derailleur UPC: 710845853524

by SRAM