—$97.99

Shimano XT RD-M780, M770 SeriesRear Derailleurs Shadow+ chain stabilizer provides a simple, lightweight chain control solution Direct routing reduces the risk of snagging Stronger return spring for more crisp shifting feeling Bracket axle keeps the derailleur body from contacting the chainstay Narrow profile Mounts to derailleur hanger on frame Item Specifications Color Black Intended Use Mountain Cassette Spacing DynaSys 10 Shifter/Derailleur Compatibility DynaSys 10 Derailleur Action Top-Normal (Traditional) Cage Length Long Shimano XT RD-M780/M770 Series Rear Derailleur Rear Derailleur UPC: 689228299290

by Shimano

—$77.43

Shimano ZEE RD-M640 Rear Derailleurs FR spec designed for use with wide-range cassettes; up to 36t max cog Shadow Plus technology proven to reduce chain slap, drop and impact noise and the 10-speed short cage rear derailleur's low-profile tucks safely below the cassette cogs Item Specifications Color Gray Weight 250g Intended Use DH-Freeride Cassette Spacing Shimano MTN 10 Shifter/Derailleur Compatibility Shimano MTN 10 Largest Cog 36teeth Chain Wrap Capacity 25teeth Derailleur Action Top-Normal (Traditional) Cage Length Short Shimano ZEE RD-M640 Rear Derailleur Rear Derailleur UPC: 689228305328

by Shimano

—$698

The SRAM RED eTap rear derailleur wirelessly executes shifts the instant you demand. 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. SRAM eTap shift logic and wireless operation 2x and 1x compatible Orbit chain management technology keeps drivetrain quiet and secure Larger X-SYNC pulleys and ceramic bearings for increased durability and efficiency Fits all 11-speed SRAM road cassettes up to 11-32t Battery sold separately Item Specifications Cage Length Short Color Black Drivetrain Speeds 11 Largest Cog 32 Rear Der/Shifter Compatibility SRAM eTap Rear Derailleur Mount Type 10x1 Standard SRAM RED eTap Rear Derailleur Rear Derailleur UPC: 710845854347

by SRAM

—$650

SRAM Eagle Transmission Rear Derailleur Can you believe that SRAM released its first 12-speed Eagle drivetrain over six years ago? And it's even been four years since SRAM Eagle AXS first came out! Yes, those pandemic years are blurry and time has been oddly fast since 2020. But those two statements above are true, and now SRAM is back to update its Eagle ecosystem once again with the new SRAM Eagle Transmission Drivetrain. A lot has changed but also not so much at the same time. It's still 12-speed, it's still the same wireless AXS shifting that we love, so why the update? Well, a few years ago SRAM started to make the SRAM UDH, a Universal Derailleur Hanger that helped solve the crisis and headache of finding the right derailleur hanger for your bike. It helped consumers, bike shops, and even bike brands as they just needed the design from SRAM and could work that into their bikes. Over the past few years, lots of brands have implemented this on their mountain bikes, including some of the biggest brands in the world. Now, SRAM has taken advantage of all of these bike brands using their UDH design, and the new Eagle Transmission rear derailleur mounts directly to the frame. SRAM Transmission is offered in full five-piece kits at first, similar to how things were back when Eagle mechanical and Eagle AXS were first released. The different tiers have changed a bit as well. We now have XXSL, XX, and XO, going from the lightest and XC race focused with XXSL, to the all-mountain drivetrain with XX, and last but certainly not lower in performance, the XO which comes with an alloy crank. Not only does the SRAM Eagle T-TYPE Rear Derailleur get the job done, it features everything you have come to expect from SRAM's AXS connect components . It's able to shift on command, whether that's under climbing load, or sprinting to the stage finish. The derailleur is smart enough to protect itself thanks to its incredibly resilient Overload Clutch. Engineered with a variety of rider preferences in mind, it is compatible with the expanded range 10-52t T-TYPE cassette Read our blog with all the new SRAM Components along with our first impressions! CLICK HERE SRAM XX Eagle T-Type AXS Rear Derailleur Rear Derailleur UPC: 710845892141

by SRAM

—$235.86

The SRAM Apex XPLR AXS rear derailleur fits wide-range cassettes with 36t or 44t large cogs and incorporates a spring clutch for flawless chain management on or off-road. Innovative and intuitive eTap shift logic and AXS connectivity keeps Apex delightfully distraction-free. SRAM AXS enabled for easy setup, personalization, and reliability 1x specific for use with SRAM 11-44t XPLR, 10-44t XPLR, and 10-36t cassettes Chain management keeps the drivetrain quiet and secure Item Specifications Chain Wrap Capacity (teeth) 34 Color Black Drivetrain Speeds 12 Largest Cog 44 Rear Der/Shifter Compatibility SRAM eTap AXS Rear Derailleur Mount Type 10x1 Standard SRAM Apex XPLR AXS Rear Derailleur Rear Derailleur UPC: 710845887499

by SRAM

—$271

The 7-speed X01 DH rear derailleur makes shifting smooth and reliable no matter where you ride. Engineered to maintain consistent chain gap across all seven gears, it eliminates vertical movement for faster shifting, reduced shift force and an end to ghost shifting. The clutch features a smoother torque curve for a quieter, more consistent operation and feel. The 12-tooth X-SYNC pulley wheel holds the chain in place, reducing bounce and chain slap. Type 3 Roller Bearing Clutch provides premium chain management Built high and tight to steer clear of the trail Cage Lock technology makes wheel changes simple and quick Pair the the SRAM X01 DH 7-speed shifter for full X-Actuation technology Item Specifications Cage Length Short Chain Wrap Capacity (teeth) 30 Color Black Drivetrain Speeds 7 Largest Cog 28 Rear Der/Shifter Compatibility SRAM X-Actuation Rear Derailleur Mount Type 10x1 Standard SRAM X01 DH Rear Derailleur Rear Derailleur UPC: 710845837203

by SRAM

—$377

The SRAM Force XPLR AXS eTap rear derailleur is a dedicated 1x-specific unit designed for use with a 10-44T or 10-36T cassette, making for an uncluttered drivetrain that takes on pavement and singletrack with equal aplomb. Wireless and proven eTap shift logic, AXS connectivity and advanced chain management mean this derailleur does exactly what you want when you need it. Orbit chain management keeps the drivetrain quiet and secure eTap shift logic for intuitive shifting AXS enabled for easy setup, personalization, and reliability 1x specific for use with 10-44T XPLR and 10-36T cassettes Large X-SYNC pulleys for increased durability and efficiency Item Specifications Cage Length Medium Color Iridescent Gray Drivetrain Speeds 12 Largest Cog 44 Rear Der/Shifter Compatibility SRAM eTap AXS Rear Derailleur Mount Type 10x1 Standard SRAM Force XPLR AXS eTap Rear Derailleur D2 Rear Derailleur UPC: 710845892172

by SRAM

—$90

The SX Eagle derailleur features the proven SRAM 1x-specific X-HORIZON design and easily facilitates 11-50t and 10-50t cassette capacity, providing quiet, consistent performance and durability SX Eagle derailleur is your entry point to the SRAM Eagle Ecosystem A full featured Eagle derailleur, compatible with the Eagle Colorsystem X-SYNC pulley technology provides greater efficiency, crisper shifting and quieter operation Cage Lock offers discovery-level riders easy trail side wheel removal Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 40 Color Black Drivetrain Speeds 12 Largest Cog 50 Rear Der/Shifter Compatibility SRAM X-Actuation Rear Derailleur Mount Type 10x1 Standard SRAM SX Eagle Rear Derailleur Rear Derailleur UPC: 710845865206

by SRAM

—$273.99

The Shimano XTR M9100 is designed to withstand full force pedalling on the roughest trails, with smooth shifting and exceptional chain stability. It offers enhanced shifting performance, a low profile design, and low sprocket compatibility. For use with 1x11 and 1x12 set ups, but only up to a 45-tooth cog Mid-cage option is 28mm shorter, offering superior ground clearance Designed with a Shadow RD+ clutch to reduce chain slap and create a quiet drivetrain with less distraction Decreased rear derailleur tension at low gear positions prevents high chain tension Features a larger 13-tooth pulley Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 35 Color Gray Drivetrain Speeds 12 Largest Cog 45 Rear Der/Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type 10x1 Standard Weight 237 Shimano XTR RD-M9100 Rear Derailleur Rear Derailleur UPC: 689228880245

by Shimano

—$74.91

Shimano 105 RD-5701 Rear Derailleurs 30t Max Low Gear when used with triple crank, 32t Max Low Gear when used with double crank 10-speed Large 11-tooth pulleys with sealed bearing for smooth, quiet running Item Specifications Color Black Intended Use Road Cassette Spacing Shimano RD 10,SRAM 10 Shifter/Derailleur Compatibility Shimano Derailleur Action Top-Normal (Traditional) Cage Length Medium Shimano 105 RD-5701 Rear Derailleur Rear Derailleur UPC: 689228311183

by Shimano

—$108.99

(Note, this amazing price doesn't include retail packaging. Rest assure the FULL manufacturer warranty is still valid)Deore XT RD-M8100 Rear Derailleur Long cage is designed to be used with 1x12 drivetrain systems Offers fast and shockless shifting thanks to HYPERGLIDE+ technology The low-profile design includes a bumper added to the derailleur pulley cage Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain Includes large 13t pulley Drivetrain is silent in all gear positions with decreased rear derailleur and chain tension in low gear Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 41 Color Black Drivetrain Speeds 12 Largest Cog 51 Rear Der/Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type 10x1 Standard Weight 284 Shimano Deore XT RD-M8100 Rear Derailleur

by Shimano

—$271

The 7-speed X01 DH rear derailleur makes shifting smooth and reliable no matter where you ride. Engineered to maintain consistent chain gap across all seven gears, it eliminates vertical movement for faster shifting, reduced shift force and an end to ghost shifting. The clutch features a smoother torque curve for a quieter, more consistent operation and feel. The 12-tooth X-SYNC pulley wheel holds the chain in place, reducing bounce and chain slap. Type 3 Roller Bearing Clutch provides premium chain management Built high and tight to steer clear of the trail Cage Lock technology makes wheel changes simple and quick Pair the the SRAM X01 DH 7-speed shifter for full X-Actuation technology Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 30 Color Black Drivetrain Speeds 7 Largest Cog 28 Rear Der/Shifter Compatibility SRAM X-Actuation Rear Derailleur Mount Type 10x1 Standard SRAM X01 DH Rear Derailleur Rear Derailleur UPC: 710845837210

by SRAM

—$334.99

GRX RD-RX815 Di2 Rear Derailleur For 1x drivetrains Operates with Shimano Di2 for digital electronic shifting Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 31 Color Black Drivetrain Speeds 11 Largest Cog 42 Rear Der/Shifter Compatibility Shimano Road Di2 Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 318 Shimano GRX RD-RX815 Di2 Rear Derailleur UPC: 192790443171

by Shimano

—$79.30

The Shimano Deore M6000 rear derailleur is designed for aggressive trail riding and uses SHIMANO SHADOW RD PLUS technology for improved chain stability and retention. For use with 3 x 10-Speed setups Utilizes Shadow RD Plus offers a quieter drivetrain and reduces chain slap Shadow RD Plus provides a simple solution for chain drop and is lighter and efficient that roller type chain devices Optislick cable for a light shifting effort Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 43 Color Black Drivetrain Speeds 10 Largest Cog 36 Rear Der/Shifter Compatibility Shimano DynaSys Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano Deore RD-M6000 10-Speed Rear Derailleur Rear Derailleur UPC: 689228413252

by Shimano

—$131

GX derailleurs share the key features of higher-priced models and are available for 1x11 and 2x11 drive trains. For 2x11 speed drivetrains Type 3 roller bearing clutch delivers maximum drivetrain stability, even through the most punishing terrain X-ACTUATION technology eliminates slop and shifting variation Cage Lock mechanism for easy wheel changes Aluminum cage and steel pulleys Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 46 Color Black Drivetrain Speeds 11 Largest Cog 42 Rear Der/Shifter Compatibility SRAM X-Actuation Rear Derailleur Mount Type 10x1 Standard Weight 289 SRAM GX 11-Speed Rear Derailleur Rear Derailleur UPC: 710845771859

by SRAM

—$64.68

The Deore rear derailleur offers a trekking-tuned spring for light and smooth shifting on all sprockets. The shadow design echoes other Shimano rear derailleurs with a low profile shape and single tension construction that does not hit the chain stay in rough riding conditions. Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 47 Color Black Drivetrain Speeds 10 Largest Cog 36 Rear Der/Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 304 Shimano Deore RD-T6000 Rear Derailleurs Rear Derailleur Rear Derailleur UPC: 689228413283

by Shimano

—$363.05

The all-new DEORE XT RD-M8150 speed rear derailleur combines race-proven quality with Shimano original technologies to help keep you flowing and focused on the right line. The new E-MTB optimized design allows full integration with SHIMANO E-Bike Systems and HYPERGLIDE+ drivetrains to unlock entirely new functionality. This system integration allows innovative features like FREE SHIFT. It's a simpler, more pure E-MTB experience only possible through the fusion of drivetrain engineering, e-bike system components, and electronic shifting intelligence. Wide range: 11-50T Auto Shift with Manual Override uses an advanced shifting algorithm to continually analyze data from multiple sensors to automatically put you in the optimal gear without requiring manual input at the shifter Durable drive quality and enduring shifting performance LINKGLIDE Technology FREE SHIFT allows you to select the optimal gear while coasting into switchbacks or dynamic terrain changes, so you're always ready to charge with better balance and control Quick and smooth shifting under the heavier chain loads of e-bikes Power directly supplied from main STEPS battery Customize and run diagnostics with E-TUBE PROJECT Low-profile design offers uninterrupted rear shifting on rough terrain Connect directly to STEPS via E-TUBE cable EW-SD300 Shimano Deore XT RD-M8150 Di2 rear Derailleur Rear Derailleur UPC: 192790239620

by Shimano

—$118.99

Deore XT RD-M8100 Rear Derailleur Long cage is designed to be used with 2x12 drivetrain systems Offers fast and shockless shifting thanks to HYPERGLIDE+ technology The low-profile design includes a bumper added to the derailleur pulley cage Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain Includes large 13t pulley Drivetrain is silent in all gear positions with decreased rear derailleur and chain tension in low gear Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 45 Color Black Drivetrain Speeds 12 Largest Cog 45 Rear Der/Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type 10x1 Standard Weight 284 Shimano Deore XT RD-M8100 Rear Derailleur UPC: 192790443652

by Shimano

—$123

The 1x specific X-Horizon derailleur design provides excellent chain control and shifts well regardless of cassette size. Uses improved Type 3.0 roller clutch design For use only with single chainring drivetrains Roller bearing clutch and parallelogram design combine to minimize chain bounce, making the drive train safer and quieter over rough terrain Not compatible with multiple chainring drive trains Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 32 Color Black/Silver Drivetrain Speeds 11 Largest Cog 36 Rear Der/Shifter Compatibility SRAM Exact Actuation Rear Derailleur Mount Type 10x1 Standard Weight 266 SRAM Rival 1 Rear Derailleur Rear Derailleur UPC: 710845807862

by SRAM

—$323

SRAM Red Rear Derailleurs New silent shifting with optimized AeroGlide Pulleys, ceramic bearings New spring-fixed barrel adjuster New chain pulley cage adds precise chain management Titanium pinch bolt keeps a low profile while minimizing weight Compatible with other SRAM 10-speed drive train components Item Specifications Color Gray/Black Weight 151g Intended Use Road Cassette Spacing SRAM 10 Shifter/Derailleur Compatibility SRAM 10 Largest Cog 32teeth Chain Wrap Capacity 37teeth Derailleur Action Top-Normal (Traditional) Cage Length Medium SRAM Red 10-Speed Rear Derailleur Rear Derailleur UPC: 710845691737

by SRAM

—$302

SRAM 2012 Red Rear Derailleurs New silent shifting with optimized AeroGlide Pulleys, ceramic bearings New spring-fixed barrel adjuster New chain pulley cage adds precise chain management Titanium pinch bolt keeps a low profile while minimizing weight Compatible with other SRAM 10-speed drive train components Item Specifications Color Gray/Black Weight 145g Intended Use Road Cassette Spacing SRAM 10 Shifter/Derailleur Compatibility SRAM 10 Largest Cog 28teeth Chain Wrap Capacity 33teeth Derailleur Action Top-Normal (Traditional) Cage Length Short SRAM Red 10-Speed Rear Derailleur Rear Derailleur UPC: 710845689178

by SRAM

—$128.81

The SRAM Force Rear Derailleur represents the same design philosophy that has yielded our best-in-class products for the MTB market. The Force takes advantage of Exact Actuation, an actuation ratio that delivers precise 3mm shifts in every gear along with the widest range of adjustment available, delivering speed and performance. WiFLi offers a wider gear range and is compatible with cassettes up to 32T Must be used with SRAM Double Tap shifter Exact Actuation Ratio delivers 3mm motion per shift across the entire cassette Works with standard or compact 10-speed road cranks Carbon & aluminum pulley cage, magnesium inner parallelogram link Item Specifications Color Silver/Black Weight 190g Intended Use Road Cassette Spacing Shimano RD 10,SRAM 10 Shifter/Derailleur Compatibility SRAM 10 Largest Cog 32teeth Chain Wrap Capacity 37teeth Derailleur Action Top-Normal (Traditional) Cage Length Medium SRAM Force Rear Derailleur Rear Derailleur UPC: 710845700460

by SRAM

—$102.22

Shimano Ultegra RD-R8000 Rear Derailleur Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 39 Color Black Drivetrain Speeds 11 Largest Cog 34 Rear Der/Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 210 Shimano Ultegra RD-R8000 Rear Derailleur Rear Derailleur UPC: 689228623163

by Shimano

—$54.99

Find your riding zone with the smooth and decisive shifting of the Shimano Deore M5130 10-speed Rear Derailleur for LINKGLIDE drivetrains. SHADOW+ technology provides roomy clearance and chain stability on rough mountain terrains. For 1x10 drivetrain System designed to integrate with LINKGLIDE cassettes for smooth shifting Shadow RD+ technology is a simple solution for chain drop, for a less distracting, quieter drivetrain Low-profile design is optimized for rough terrain Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 32 Color Black Drivetrain Speeds 10 Largest Cog 43 Rear Der/Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type Shimano Rear Direct Mount Shimano Deore RD-M5130 Rear Derailleur Rear Derailleur UPC: 192790897103

by Shimano

—$309.25

Professional grade derailleur built with carbon fiber and aluminum, featuring roller clutch pulley cage and cage lock feature for easy wheel installation. Wide-tooth, narrow-tooth pulley wheel maximizes chain control by fitting inner and outer chain links perfectly X-Horizon design maintains constant chain gap across all gears and eliminates ghost shifting Roller bearing clutch eliminates derailleur bounce and chain slap Cage Lock feature simplifies wheel removal and chain installation Must be used with SRAM 1x11 shifter and cassette Cannot be used with double or triple chainrings Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 32 Color Black/Red Drivetrain Speeds 11 Largest Cog 42 Rear Der/Shifter Compatibility SRAM X-Actuation Rear Derailleur Mount Type 10x1 Standard Weight 220 SRAM XX1 Rear Derailleur Rear Derailleur UPC: 710845764011

by SRAM

—$74

Sacrifice nothing - not durability, dependability, or performance. Uses Exact Actuation cable pull ratio for eay set-up and reliable shift performance. Works with standard or compact 11-speed road cranks Aluminum cage and parallelogram, stainless steel hardware Compatible with SRAM road shifters and 10 speed MTB shifters Aluminum cage and parallelogram Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 37 Color Black/Silver Drivetrain Speeds 11 Largest Cog 32 Rear Der/Shifter Compatibility SRAM Exact Actuation Rear Derailleur Mount Type 10x1 Standard Weight 198 SRAM Rival 22 Rear Derailleur Rear Derailleur UPC: 710845750410

by SRAM

—$114.62

The SRAM Apex Eagle rear derailleur quietly and quickly shifts across their 12-speed Eagle cassettes, while 1x-specific chain retention technology keeps the chain where it needs to be. It's the best of SRAM's road and mountain bike innovations in one package. Compatible with 50t and 52t Eagle cassettes Works with SRAM 12-speed mechanical Apex and Eagle shifters For use with Eagle 12-Speed chain Roller Bearing Clutch controls chain tension for consistent shifting X-HORIZON straight parallelogram design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force Cage Lock technology makes for fast wheel changes or chain installation Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 42 Color Black Drivetrain Speeds 12 Largest Cog 52 Rear Der/Shifter Compatibility SRAM X-Actuation Rear Derailleur Mount Type 10x1 Standard SRAM Apex Eagle Rear Derailleur Rear Derailleur UPC: 710845887529

by SRAM

—$300

On any surface you can imagine, in any drivetrain configuration, the SRAM Rival eTap AXS Rear Derailleur can handle it. Secure chain management and fast, precise shifting make for a smooth and quiet ride, every time. Wireless electronic eTap shift logic for intuitive shifting, easy setup and reliability Battery and charger sold separately Compatible with both 1x and 2x drivetrains 36t cog max derailleur works with 10-28, 10-30, 10-33, and 10-36 cassettes SRAM AXS enabled, allowing easy personalization Chain management keeps the drivetrain quiet and secure X-SYNC pulleys for increased durability and efficiency Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 26 Color Black Drivetrain Speeds 12 keyword search Rival AXS Largest Cog 36 Rear Der/Shifter Compatibility SRAM eTap AXS Rear Derailleur Mount Type 10x1 Standard SRAM Rival AXS Rear Derailleur Rear Derailleur UPC: 710845864681

by SRAM

—$299.99

GRX RD-RX815 Di2 Rear Derailleur For 1x and 2x drivetrains Operates with Shimano Di2 for digital electronic shifting Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 38 Color Black Drivetrain Speeds 11 Largest Cog 34 Rear Der/Shifter Compatibility Shimano Road Di2 Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 287 Shimano GRX RD-RX815 Di2 Rear Derailleur UPC: 192790443188

by Shimano

—$117.21

The Ultegra RX Rear Derailleur brings Shimanos' chain stabilizing technology road cycling drivetrains, delivering smooth and precise shifting over technical terrain. It expands road bike capabilities, inspiring confidence on any surface and drives the evolution of road cycling to include greater elements of adventure. The Ultegra RX Rear Derailleur is available in 11-speed Mechanical or Di2 compatible options. Designed for use on 2x11-speed mechanical systems Shimano Shadow RD+ chain stabilizer mechanism Includes clutch with On/Off switch Compatible with current road Dual Control Levers Direct Mount Compatible Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 39 Color Black Drivetrain Speeds 11 Largest Cog 34 Rear Der/Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 248 Shimano Ultegra RD-RX800 Rear Derailleur Rear Derailleur UPC: 689228871106

by Shimano

—$39.99

microSHIFT R10 rear derailleurs feature forged and CNC machined construction that pairs durability with a quality finish. This lightweight and lightweight rear derailleur is robust and designed to get any 10-speed Shimano Road compatible bike back on the road. Medium cage has 39t capacity 30-34t Max cog Forged and CNC machined aluminum construction is lightweight and rugged Cage is crafted with steel for enhanced chain-rub durability For use with Shimano 10-speed road systems Not compatible with Shimano Tiagra 4700 road system Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 39 Color Black Drivetrain Speeds 10 Largest Cog 34 Rear Der/Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard microSHIFT R10 10-Speed Rear Derailleur Rear Derailleur EAN: 4710495436593

by microSHIFT

—$377

The SRAM Force AXS rear derailleur features a single cage length that works with any cassette size from 10-28T to 10-36T, in 1x or 2x configurations. Shifts are fast and precise, and the Orbit fluid damper keeps the chain in control, whether the obstacle you're hitting is a pothole or a root. Wireless and proven eTap shift logic, AXS connectivity and advanced chain management mean this derailleur does exactly what you want when you need it. Orbit chain management technology keeps the drivetrain quiet and secure AXS enabled for easy setup, personalization, and reliability Compatible with both 1x and 2x drivetrains 36T-max derailleur is compatible with cassettes with big cogs from 28T to 36T eTap shift logic for intuitive shifting Large X-SYNC pulleys for increased durability and efficiency Item Specifications Cage Length Medium Color Iridescent Gray Drivetrain Speeds 12 Largest Cog 36 Rear Der/Shifter Compatibility SRAM eTap AXS Rear Derailleur Mount Type 10x1 Standard SRAM Force AXS eTap Rear Derailleur D2 Rear Derailleur UPC: 710845892165

by SRAM

—$300

If your ride doesn't feel complete until you get a little dirt on your tires, you know the importance of capable components that can tackle anything. The SRAM Rival XPLR eTap AXS rear derailleur is a dedicated 1x-specific unit designed for use with the XPLR 10-44 cassette. It makes for an uncluttered drivetrain that takes on pavement and singletrack with equal aplomb. Wireless and proven eTap shift logic, AXS connectivity and advanced chain management mean this derailleur does exactly what you want when you need it. Wireless electronic eTap shift logic for intuitive shifting, easy setup, and reliability 1x specific for use with 10-44T XPLR and 10-36T cassettes SRAM AXS enabled, allowing easy personalization Chain management keeps the drivetrain quiet and secure Larger X-SYNC pulleys for increased durability and efficiency eTap battery is not included (Sold Separately). See related items below Compatible with existing eTap batteries Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 34 Color Black Drivetrain Speeds 12 Largest Cog 44 Rear Der/Shifter Compatibility SRAM eTap AXS Rear Derailleur Mount Type 10x1 Standard SRAM Rival XPLR eTAP AXS Rear Derailleur Rear Derailleur UPC: 710845868993

by SRAM

—$48.05

The SunRace M9 Rear Derailleuris designed for 9-speed MTB drivetrains. Adjustable chain stabilizer Alloy bracket Alloy outer link Alloy outer cage Item Specifications Cage Length Medium Color Black Drivetrain Speeds 8 Drivetrain Speeds 9 Largest Cog 51 Rear Der/Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 270 SunRace M9 Rear Derailleur Rear Derailleur EAN: 4710944268430

by SunRace

—$48.05

The SunRace M9 Rear Derailleuris designed for 9-speed MTB drivetrains. Adjustable chain stabilizer Alloy bracket Alloy outer link Alloy outer cage Item Specifications Cage Length Short Color Black Drivetrain Speeds 8 Drivetrain Speeds 9 Largest Cog 42 Rear Der/Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 240 SunRace M9 Rear Derailleur Rear Derailleur EAN: 4710944268751

by SunRace

—$115.47

SRAM Force 22 Rear Derailleurs Carbon fiber and aluminum construction Cartridge bearing pulleys Stainless Steel hardware Item Specifications Intended Use Road Cassette Spacing Shimano/SRAM 11 Shifter/Derailleur Compatibility SRAM 11 Derailleur Action Top-Normal (Traditional) Cage Length Medium SRAM Force 22 Rear Derailleur Rear Derailleur UPC: 710845728174

by SRAM

—$374.99

The all-new DEORE XT RD-M8150 speed rear derailleur combines race-proven quality with Shimano original technologies to help keep you flowing and focused on the right line. The new E-MTB optimized design allows full integration with SHIMANO E-Bike Systems and HYPERGLIDE+ drivetrains to unlock entirely new functionality. This system integration allows innovative features like FREE SHIFT. It's a simpler, more pure E-MTB experience only possible through the fusion of drivetrain engineering, e-bike system components, and electronic shifting intelligence. Wide range: 10-51T Fast and precise shifting performance optimized to take on any trail HYPERGLIDE+ technology FREE SHIFT allows you to select the optimal gear while coasting into switchbacks or dynamic terrain changes, so you're always ready to charge with better balance and control Quick and smooth shifting under the heavier chain loads of e-bikes Power directly supplied from main STEPS battery Customize and run diagnostics with E-TUBE PROJECT Low-profile design offers uninterrupted rear shifting on rough terrain Connect directly to STEPS via E-TUBE cable EW-SD300 Shimano Deore XT RD-M8150 Di2 rear Derailleur Rear Derailleur UPC: 192790239613

by Shimano

—$114.62

You want your bike to do everything, so you need gears that can do everything. The SRAM Apex XPLR derailleur hits the sweet spot of smooth jumps over a big gear range, all with unmatched chain security and the simplicity of a 1x drivetrain. Quietly and quickly shift across our 12-speed cassettes with 44T large cogs, knowing you'll have the gears you need. Compatible with cassettes with 44t large cogs For use with SRAM 12-Speed Flattop chains Works with 12-speed mechanical Apex and Eagle shifters Clutch controls chain tension for consistent shifting X-HORIZON straight parallelogram design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force Cage Lock technology makes for fast wheel changes or chain installation Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 34 Color Black Drivetrain Speeds 12 Largest Cog 44 Rear Der/Shifter Compatibility SRAM X-Actuation Rear Derailleur Mount Type 10x1 Standard SRAM Apex XPLR Rear Derailleur Rear Derailleur UPC: 710845887512

by SRAM

—$194.99

The Box One Prime 9 Rear Derailleur takes the advantage of BOX's legacy 9-speed drivetrain but adds the advancements of a modern 1x; a fully adjustable Tri-Pack(TM) Clutch, and an x-wide cage optimized for an 11-50T cassette. Forged construction steps up the durability and performance to an unparalleled level. Suited for the most demanding terrain. Designed for aggressive terrain Adjustable Tri-Pack Limited Slip clutch Precision sealed bearing pulleys Carbon-nylong composite knuckle Pivot-Tech cable stay Durable 3D forged linkages Forged inner and outer cage Compatible with standard derailleur hangers (non-direct mount) Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 39 Color Black Designed for ebike Yes Drivetrain Speeds 9 Largest Cog 50 Rear Der/Shifter Compatibility BOX Prime 9 Rear Derailleur Mount Type 10x1 Standard BOX One Prime 9 Rear Derailleur Rear Derailleur UPC: 639266097228

by BOX

—$333

Top-of-the-line rear derailleur with generous use of carbon fiber and titanium for maximum performance at minimal weight. Graphics match SRAM Red eTap electronic components Carbon fiber and aluminum construction Ceramic bearing pulleys Titanium hardware Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 37 Color Black Drivetrain Speeds 11 keyword search RD4621 Largest Cog 32 Rear Der/Shifter Compatibility SRAM Exact Actuation Rear Derailleur Mount Type 10x1 Standard Weight 152 SRAM Red Rear Derailleur Rear Derailleur UPC: 710845778650

by SRAM

—$125

The Eagle 90 Transmission derailleur is the definitive answer to how good a cable actuated derailleur can be. It features an all-new T-Type cable actuation ratio to provide the most precise and crisp shifts every time. Utilizing the same Full Mount design as its electronic siblings, Eagle 90 is the strongest mechanical derailleur we have ever produced. Not only is it robust, but the derailleur body features replaceable outer and inner parallelogram links, skid plates, and a tool-free threaded cage assembly, making it the most rebuildable derailleur in the Eagle Transmission Ecosystem.  Features Full Mount Design. T-Type compatibility. Silver/black colorway. Most robust mechanical derailleur. Replaceable skid plates, outer and inner parallelogram link, cage or cage assembly. The most rebuildable derailleur in the Eagle Transmission Ecosystem. SRAM Eagle 90 T-Type Rear Derailleur Rear Derailleur UPC: 710845905100

by SRAM

—$126.99

The Shimano RD-RX820 rear derailleur is compatible with 11-34t and 11-36t 12-speed cassettes, providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. This rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. The chain tensioner has an ON/OFF switch for outings on smooth surfaces. Silent and secure rear shifting on rough terrain Adjustable chain stabilizer prevents chain slap and drops Shimano Shadow RD+ offers less distraction, a quiet drive train, reduced chain slap and a solution for chain drop ON/OFF stabilizer switch matches terrain for smooth and reliable shifting on mixed surfaces Compatible with HG 12-Speed Chains Item Specifications Chain Wrap Capacity (teeth) 42 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 270 Shimano GRX RD-RX820 12-Speed Rear Derailleur Rear Derailleur UPC: 192790303611

by Shimano

—$126.99

With an integrated chain stabilizer, Shimano GRX RD-RX822 12-speed rear derailleurs feature an intergrated chain stablizer that delivers quieter shifting and more secure chain management in rough terrain. The chain tensioner has an ON/OFF switch for easy wheel removal. Shimano RD-RX822-GS rear derailleur with medium cage is compatible with 10-45t, 12-speed Shimano MTB cassettes Interchangeable, replaceable GS/SGS derailleur cage Shadow RD+ design, combined with the adjustable chain stablilizer, prevents chain slap and drops ON/OFF stabilizer switch matches terrain for smooth and reliable shifting on mixed surfaces Compatible with HG 12-Speed Chains Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 35 Drivetrain Speeds 12 Largest Cog 45 Rear Der/Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard Rear Derailleur Mount Type Shimano Rear Direct Mount Weight 290 Shimano GRX RD-RX822 12-Speed Rear Derailleurs Rear Derailleur UPC: 192790303635

by Shimano

—$239.99

The TRP EVO RD-M9050 is a high performing 12-speed rear derailleur that offers features such as an Integrated Hall Lock Lever, Horizontal Parallelogram stabilizer, Instant Silent Clutch and Cage Release. Integrated Hall Lock Lever stabilizes the rear derailleur to eliminate drivetrain noise Intergrated Hall Lock Lever offers an On/Off feature for easy wheel removal and features adjustable clamping force for breakaway optimization Horizontal Parallelogram stabilizes the rear derailleur over rough terrain Instant, Silent Clutch prevents unwanted chain slap and noise Cage Release releases cage spring tension and offers easy wheel removal for maintenance Carbon outer cage provides strength and weight savings Smooth operating 12t upper and 14t lower pulley wheels feature sealed bearings to provide protection from the elements Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 42 Color Black/Gold Drivetrain Speeds 12 Largest Cog 52 Rear Derailleur Mount Type 10x1 Standard Weight 301 TRP RD-M9050 EVO 12-Speed Rear Derailleur Rear Derailleur EAN: 4717592038460

by TRP

—$229.99

The TRP EVO RD-M9050 is a high performing 12-speed rear derailleur that offers features such as an Integrated Hall Lock Lever, Horizontal Parallelogram stabilizer, Instant Silent Clutch and Cage Release. Integrated Hall Lock Lever stabilizes the rear derailleur to eliminate drivetrain noise Intergrated Hall Lock Lever offers an On/Off feature for easy wheel removal and features adjustable clamping force for breakaway optimization Horizontal Parallelogram stabilizes the rear derailleur over rough terrain Instant, Silent Clutch prevents unwanted chain slap and noise Cage Release releases cage spring tension and offers easy wheel removal for maintenance Carbon outer cage provides strength and weight savings Smooth operating 12t upper and 14t lower pulley wheels feature sealed bearings to provide protection from the elements Item Specifications Cage Length Long Chain Wrap Capacity (teeth) 42 Color Black/Silver Drivetrain Speeds 12 Largest Cog 52 Rear Derailleur Mount Type 10x1 Standard Weight 301 TRP RD-M9050 EVO 12-Speed Rear Derailleur Rear Derailleur EAN: 4717592037609

by TRP

—$131

GX derailleurs share the key features of higher-priced models and are available for 1x11 and 2x11 drive trains. For 2x11 speed drivetrains Medium cage is for use on hardtail bikes Type 3 roller bearing clutch delivers maximum drivetrain stability, even through the most punishing terrain X-ACTUATION technology eliminates slop and shifting variation Cage Lock mechanism for easy wheel changes Aluminum cage and steel pulleys Item Specifications Cage Length Medium Chain Wrap Capacity (teeth) 46 Color Black Drivetrain Speeds 11 Largest Cog 42 Rear Der/Shifter Compatibility SRAM X-Actuation Rear Derailleur Mount Type 10x1 Standard Weight 286 SRAM GX 11-Speed Rear Derailleur Rear Derailleur UPC: 710845771842

by SRAM

—$700

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

—$409.99

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

—$700

The heart of the AXS ecosystem is lighter, more efficient, and more capable than ever. Covering cassette ranges from 10-28t up to 10-36t, this wireless wonder has larger pulleys to decrease chain articulation and increase efficiency, and an Orbit fluid damper to keep everything in place over the rough stuff. One derailleur ready for 1x or 2x, on road or off. Orbit chain management technology keeps the drivetrain quiet and secure AXS enabled for easy setup, personalization, and reliability 16g lighter than previous generation Compatible with both 1x and 2x RED drivetrains Compatible with cassettes from 10-28t to 10-36t Larger X-Sync pulleys for increased efficiency Compatible with existing AXS batteries (Sold separately) Item Specifications Cage Length Medium Color Black Drivetrain Speeds 12 Largest Cog 36 Rear Der/Shifter Compatibility SRAM eTap AXS Rear Derailleur Mount Type 10x1 Standard Weight 262 SRAM RED eTAP AXS Rear Derailleur E1 Rear Derailleur UPC: 710845899812

by SRAM

—$219.99

The TRP EVO RD-M9070 is a high performing 7-speed rear derailleur designed for DH use that features an Integrated Hall Lock Lever, Horizontal Parallelogram stabilizer, and Instant Silent Clutch. Integrated Hall Lock Lever stabilizes the rear derailleur to eliminate drivetrain noise Intergrated Hall Lock Lever offers an On/Off feature for easy wheel removal and features adjustable clamping force for breakaway optimization Horizontal Parallelogram stabilizes the rear derailleur over rough terrain Instant, Silent Clutch prevents unwanted chain slap and noise Item Specifications Cage Length Short Chain Wrap Capacity (teeth) 13 Color Black/Silver Drivetrain Speeds 7 Largest Cog 26 Rear Derailleur Mount Type 10x1 Standard TRP RD-M9070 EVO 7-Speed Rear Derailleur Rear Derailleur EAN: 4717592037616

by TRP