Rear

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.

Celebrate where it started—and everything SRAM is proud of today—with the Eagle Transmission 1987 Collection. This limited-run, silver-finished groupset pairs the most advanced T-Type components with exclusive serialization and in-box extras, delivering the benchmark for shift-under-load performance in a once-in-a-generation package. What’s Included 1987 Eagle AXS T-Type Silver Rear Derailleur (individually serialized 1–1987) Two 1987 AXS Pod Ultimate Silver Electronic Controllers (left and right) 1987 T-Type Eagle Spider Power Meter Crankset, Q174, CL55 Wide, 170 mm, with 34T T-Type chainring (serialized 1–1987) Spare 1987 T-Type 32T Silver chainring XS-1987 T-Type 10–52 Silver cassette (serialized 1–1987) 1987 T-Type 126-link Silver chain (serialized 1–1987) Threaded Chainring Removal Tool Two T-Type PVD PowerLocks Two SRAM AXS batteries AXS 4-port USB-C battery charger and cord Quality Certificate Signature Features Limited Edition: 1,987 groupsets, each individually numbered and finished in exclusive silver with 1987 script accents Shift Under Load, Refined: updated T-Type derailleur control for faster, more controlled shift speeds and the most robust, responsive Eagle Transmission derailleur to date Integrated Power: X0-inspired all-aluminum crank (170 mm only) with spider-based, dual-sided power measurement and threaded chainrings; 34T installed, 32T included, plus the required removal tool Lighter 10–52T Cassette: architecture rooted in XX SL and shaved by an additional 25 g without compromising durability (not approved for e-MTB use) Flattop Chain: hollow links and pins with Hard Chrome coating and subtle 1987 detailing, including Stan Day’s handwritten script and the set’s unique serial number Cockpit Your Way: two Pod Ultimate controllers with silver Infinity clamps for tidy left/right customization and easy integration with Reverb AXS / Flight Attendant With a tightly limited run, SRAM selected 170 mm—the most widely used length—to fit the broadest range of riders. Compatibility & Limitations e-MTB: cassette and chain are XX SL-based and not approved for e-MTB use Replacement Parts: if a component is worn or damaged, compatible Eagle Transmission T-Type parts can be used; replacement items will not carry the original 1–1987 serialization Derailleur Construction XX aluminum inline cage paired with the lightest AXS Full-Mount XX SL body balances strength and low mass for precise shifts under load. Charging & Power Box includes a 4-bay USB-C charger that charges four AXS batteries in the time a single-bay charger charges one, plus two AXS batteries so you always have a spare. Design Notes The 1987 Collection honors SRAM’s origin story—founded in 1987 with Grip Shift—and embodies the brand’s ongoing drive to make every ride better.

Lighter, faster and more capable than ever, the Force AXS rear derailleur does it all in style. Covering cassette ranges from 10-28T up to 10-36T, this wireless wonder has a new, lighter cage and a larger pulley wheel to increase drivetrain efficiency. One derailleur ready for 2x or 1x, the steepest climbs and descents, all while shedding 12g from previous generation Force. Features - AXS enabled for easy setup, personalization, and reliability - Compatible with both 2x and 1x drivetrains - Compatible with cassettes from 10-28T to 10-36T - Larger X-SYNC pulleys for increased efficiency - Chain management technology keeps the drivetrain quiet and secure

SRAM's Force WiFli Rear derailleur is made for wide-range 2x10 systems. Its long cage can handle an 11-32 cassette! You get the huge gear range of a triple with reduced weight and better shifting. Of course, the WiFli still uses SRAM's renowned Exact Actuation technology for precision shifts every time. Plus, the Force is crafted with cutting-edge materials, such as a super-light carbon cage and a magnesium inner link for feathery low weight, flawless shifting and reliability.

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

We understand that the gnarly line requires a lot more focus than a lap of the supermarket. That's why we packed the GX DH 1x X-HORIZON rear derailleur with World Championship-winning features and gave it a price tag that speaks more to the Wednesday Night Championships. This is a DH derailleur that is easier to shift, is incredibly precise, and keeps the unwanted noise of chain slap to a minimum, so you can concentrate on the sweet feeling of nailing your line. GX DH—Get Some. - X-ACTUATION for precise and dependable 7-speed performance - Fully compatible with the SRAM X01 DH drivetrain - X-HORIZON design that reduces shift force, ghost shifting, and cage slap - 12-tooth X-SYNC pulley wheels

Riders want a derailleur that shifts on command, whether under climbing load or sprinting to the stage finish. The GX Eagle AXS derailleur gets it done with everything you have come to expect from our AXS connect components. The GX Eagle AXS 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 our new expanded range 10-52t cassette as well as our 10-50t cassette. Showcasing its lineage from the proven GX Eagle mechanical line, the GX Eagle AXS derailleur is there for one thing: to do the job. Features - AXS enabled componentry software that makes it possible to both program and personalize new SRAM and RockShox components - Overload Clutch protection - Finished with the GX Eagle master colorway - Battery sold separately Specifications - Speeds: 12 - Cage Material: Steel - Pulley Bearings Material: Steel - Max Tooth: 52

Riders want the derailleur to do its job shifting on command, whether under climbing load or the stage finish. The GX Eagle derailleur gets it done with an updated cage architecture that improves chain management. Refined to work with the new 10-52T cassettes, it's also backward-compatible with 10-50T cassettes for greater versatility and incremental upgrade. It's finished with the new GX Eagle master colorway to complement any cassette and chain colorway a rider wants from the Eagle Colorsystem. - Backward-compatible—works with both 10-50T and newer 10-52T cassettes - Updated cage architecture provides better chain retention and precise shifts

The GX Eagle T-Type AXS™ 12-Speed derailleur is a lesser version of nothing. It delivers everything an Eagle Transmission derailleur possibly can, and then some. It features a revised battery position and a reconfigured gearbox to better protect itself from impacts. To maintain crisp shifting and striking appearance throughout its entire lifespan, hard-chargers can replace both its protective skid plates and two-piece outer link, if needed, making this the most repairable derailleur SRAM has ever made. It also features the first ever tool-free cage and clutch assembly – so it’s both removable and upgradable too. Just like all Eagle T-Type derailleurs, it’s been engineered with a first-of-its-kind Hangerless Interface, mounting around the wheel axle itself and making direct contact with the cassette with no hanger required. The new transmission derailleurs feature the same intuitive pairing and set-up procedure as our Eagle AXS™ derailleurs. - Revolutionary Hangerless interface and Full Mount attachment method creates a far stronger connection because it grips both sides of the frame - Steel inner cage adds even more robustness - Installs and pairs via the reliable and familiar standard AXS™ set-up and pairing procedure - Radically clear setup process, no adjustment required - Battery Not Included

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.

This new NX Eagle derailleur features the proven SRAM 1x-specific X-HORIZON design. The larger, 14-tooth X-SYNC lower pulley easily facilitates 11- to 50- and 10- to 50-tooth cassette capacity, and also adds to NX Eagle's overall smooth-pedaling feel. The Type-3 ROLLER BEARING CLUTCH provides quiet, consistent performance and durability. - Eagle technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents - Eagle is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. We guarantee this performance when Eagle drivetrains are used as a complete ecosystem. For additional information, please contact your SRAM Sales Contact. - Completely new rear derailleur incorporating our proven X-HORIZON design and new Type-3 ROLLER BEARING CLUTCH technology - Eagle ecosystem-engineered mounting system and CAGE LOCK positioning add robustness - Eagle pulley technology provides greater efficiency, crisper shifting and quieter operation - Speed (RD): 12s - Cable pull ratio: X-actuation - Cage (RD): Long - Max tooth: 50 - Color (RD): Black - Pulley bearings material: Steel - Cage material (RD): Steel

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. 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. Requires frame with UDH interface. -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)

Upgrade your ride with the reliable precision of wireless shifting. The SRAM Rival AXS Rear Derailleur is a versatile, 12-speed electronic derailleur that delivers smooth, quiet, and consistent shifting across both 1x and 2x AXS drivetrains. With broad cassette compatibility and SRAM’s signature chain management, it’s an ideal choice for road, gravel, and all-road cyclists who want performance without complexity. Built around the same wireless AXS platform as Force and Red, Rival gives you access to top-tier technology in a more affordable package—without compromising on reliability or control. Key Features: Wireless AXS Shifting: Fully cable-free electronic shifting. Set up, customize, and monitor performance via the SRAM AXS mobile app. 1x and 2x Drivetrain Compatible: One derailleur handles both single and double chainring setups with cassettes from 10-28T to 10-36T. Advanced Chain Management: Internal clutch helps maintain chain tension and stability across rough roads and steep climbs, reducing noise and dropped chains. Wide Cassette Range: Supports 12-speed cassettes with up to 36T max for expanded gearing on varied terrain. Durable Construction: Engineered with aluminum and steel for long-term reliability without excess weight. Product Specs: Part Number: 00.7518.196.000 Model: RD-RIV-E-E1 Speed: 12-speed Cassette Compatibility: 10-28T to 10-36T Drivetrain Compatibility: SRAM AXS 12-speed (1x and 2x) Cage Material: Aluminum Pulley Bearings: Steel Color: Black/Grey Wireless Protocol: SRAM AXS Battery: AXS rechargeable (sold separately or included in groupsets) Ideal For: Riders building or upgrading a Rival AXS road or gravel drivetrain Cyclists seeking wireless performance with wide-range gearing All-road riders who want quiet, accurate shifting in demanding conditions The SRAM Rival AXS Rear Derailleur brings pro-level wireless shifting within reach. With cross-compatibility, easy setup, and durable design, it’s the smart choice for riders who want performance, versatility, and value—all in one.

Perfect shifting through better design, even through the toughest gravel terrain. By using a Full Mount interface, the Rival XPLR AXS rear derailleur ensures perfect shifting with no adjustment screws, and unmatched resilience to whatever the world throws at you. Mud, loose rocks, or careless airline employees can’t knock this out of adjustment. Wireless AXS shifting pairs with our smooth and strong chain management for an effortless, set-and-forget ride. Features - 1x specific for use with 10-46T XPLR 13-speed cassette and Flattop chains - Hangerless Interface and Full Mount attachment allow for the most precise shifting and the ultimate resistance to impact - Simple setup with no adjustment screws - Superior chain management with MTB-inspired spring clutch - Replaceable and rebuildable parts

Built tough for the unpredictable nature of gravel riding, the SRAM Rival XPLR AXS Rear Derailleur brings cutting-edge wireless shifting, rugged durability, and gravel-specific gearing to a broader range of riders. Designed exclusively for 1x13-speed XPLR cassettes, it features the same Full Mount and Hangerless Interface architecture as Force XPLR—delivering rock-solid alignment and impact resistance at a more accessible price point. Whether you're rolling through ruts, smashing over washboard, or loading up for bikepacking adventures, this derailleur offers consistent, quiet shifting without cables or complexity. Key Features: 1x-Specific for XPLR 13-Speed Cassettes: Engineered for use with SRAM’s 10-46T XPLR 13-speed cassettes and Flattop chains, delivering a tight, optimized gear range for off-road exploration. Full Mount and Hangerless Interface: Mounts directly to compatible frames, eliminating the derailleur hanger for better durability, improved alignment, and less susceptibility to impact damage. Wireless AXS Shifting: Fully wireless electronic shifting with app-based customization, firmware updates, and diagnostics via the SRAM AXS mobile app. No Adjustment Screws: Setup is simplified—precise, consistent shifting without the need to fiddle with high/low limit screws. Superior Chain Management: Integrated clutch and optimized cage design keep the chain quiet and stable on rough and uneven terrain. Replaceable & Serviceable Parts: Designed to be durable, rebuildable, and field-serviceable for long-term reliability on extended gravel adventures. Product Specs: Part Number: 00.7518.194.000 Model: RD-RIV-1E-E1 Speed: 13-speed Cassette Compatibility: 10-46T (XPLR 13-speed only) Drivetrain Compatibility: SRAM AXS 1x XPLR Chain Compatibility: SRAM Flattop 12/13-speed Mount Type: Full Mount (Hangerless Interface only) Materials: Aluminum cage, steel pulley bearings Color: Black/Grey Wireless Protocol: SRAM AXS Battery: AXS rechargeable battery (sold separately or included with groupsets) Ideal For: Gravel and adventure cyclists upgrading to a 1x13-speed AXS drivetrain Riders seeking a highly durable, impact-resistant derailleur for long miles and harsh terrain Those building an affordable yet fully wireless gravel setup The Rival XPLR AXS Rear Derailleur brings SRAM’s most innovative gravel tech to a broader audience—offering simplicity, durability, and smart wireless control without the premium price. Gravel’s future is wireless, and this derailleur makes it more accessible than ever.

Built for gravel’s worst and fastest, the SRAM Force XPLR AXS Rear Derailleur is a purpose-built 1x derailleur optimized for 13-speed gravel drivetrains. Designed around SRAM’s XPLR 10-46T cassettes, this derailleur delivers crisp shifting, rock-solid chain retention, and breakthrough Full Mount architecture for unmatched resilience on rough terrain. This is more than a tougher derailleur—it's smarter. With no hanger and no adjustment screws, the XPLR AXS derailleur bolts directly to the frame’s Hangerless Interface, providing bombproof alignment and resistance to damage from impact, travel, or mishandling. Combined with wireless shifting via AXS, it’s the gold standard for gravel-specific drivetrain design. Key Features: 1x-Specific Design for 13-Speed XPLR: Built exclusively for SRAM’s 10-46T 13-speed cassettes and Flattop chains, giving gravel riders a tighter gear range and fewer jumps. Full Mount + Hangerless Interface: Bolts directly to the frame (no derailleur hanger required), reducing complexity, improving alignment, and resisting impact damage. Wireless AXS Technology: Cable-free shifting with customizable settings, firmware updates, and performance data via the SRAM AXS mobile app. Straight Parallelogram Movement: Prevents inward derailleur movement into spokes or cassettes. Maintains consistent chain gap across the cassette. Simplified Setup: No adjustment screws, fewer moving parts, and user-replaceable components make it easier to install, tune, and maintain. Chain Management System: Integrated clutch and oversized pulley wheels keep the drivetrain quiet and secure on rough, loose, or muddy terrain. Product Specs: Part Number: 00.7518.193.000 Model: RD-FRC-1E-E1 Speed: 13-speed Cassette Compatibility: 10-46T (XPLR 13-speed) Drivetrain Compatibility: SRAM XPLR AXS 1x only Chain Compatibility: SRAM Flattop 12/13-speed Mount Type: Full Mount (Hangerless Interface only) Material: Carbon and aluminum cage, steel pulley bearings Color: Unicorn Black with Laser Foil Wireless Protocol: SRAM AXS Battery: AXS rechargeable battery (sold separately or included in groupsets) Ideal For: Gravel riders and racers seeking a purpose-built wireless 1x drivetrain Riders using SRAM XPLR 13-speed cassettes and Flattop chains Those looking for a derailleur that can withstand travel, impact, and rugged use The Force XPLR AXS Rear Derailleur redefines what a gravel derailleur should be: clean, tough, smart, and made for real-world abuse. If you’re building a high-performance, high-resilience gravel rig—this is your derailleur.

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) Effortless Performance. Effortless Perfection You want your performance to represent 100% of what you put in, and SRAM designed RED AXS with that goal. RED AXS is not just the SRAM’s lightest electronic groupset ever, it has more comfortable and lower-effort braking, more precise shifting, and expanded gearing choices. Riding isn’t effortless SRAM RED is. Heart of the AXS Ecosystem The RED derailleur is now 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.

Eleven speeds to rule all the trails. That is the X1 Rear Derailleur's motto. It packs a massive amount of technology into its compact, lightweight aluminum body. This 11-speed gear changer uses a “horizontal parallelogram” design that limits all movement to the horizontal axis, reducing the force it takes to shift. The Type 2 clutch is brilliant. This self-lubricating, one-way roller clutch controls your chain tension to eliminate chain slap and give you smooth, consistent shifts over any terrain. For quicker, smoother, more exact shifting, the large upper pulley's offset design maintains a consistent chain gap across all gears.

The XX Eagle T-Type AXS™ 12-Speed rear derailleur foundationally changes the relationship between cassette and derailleur. Engineered as integrated, interdependent transmission components, the T-Type derailleur mounts around the wheel axle itself, contacting the cassette directly with a first-of-its-kind Hangerless Interface. Its game-changing Full Mount attachment method creates a far stronger connection and grips both sides of the frame. This XX T-Type rear derailleur features the same intuitive pairing and set-up procedure as Eagle AXS™ derailleurs. - Tucked-in profile houses replaceable skid plates that enhances dependability in high-pressure racing environments - To further its performance, the lower pulley called "Magic Wheel" keeps spinning if an object becomes lodged - Features an overload clutch, accommodates common maintenance and features that real world riders really appreciate - Exceptional shifting performance and unprecedented strength - Aluminum cage - Battery Not Included

Occupying a new realm in shifting performance, the redesigned XX1 Eagle derailleur gives no-compromise racers and dream-bike builders a true top-tier option. The crisp, precise XX1 shifting feel athletes rely on now features an updated cage geometry for improved chain management. Occupying its rightful place at the top of the Eagle ecosystem, the XX1 Eagle rear derailleur makes full use of the new 10-52T cassettes and is backward-compatible with 10-50T cassettes, as well. - Updated cage geometry provides better chain retention and crisper shifting - Comes in XX1 Eagle master colorway as part of Eagle Colorsystem to go with all cassette and chain color options - Backward-compatible with 10-50T cassettes, works with new 10-52T cassettes

M21 rear derailleurs are designed to work with 6- and 7-speed Shimano road and mountain shifters. Enjoy the wide variety of bikes you can get going again with M21 rear derailleurs. - Robust composite and steel construction - Compatible with Shimano 6- and 7-speed mountain and road systems

M21 rear derailleurs are designed to work with 6- and 7-speed Shimano road and mountain shifters. Enjoy the wide variety of bikes you can get going again with M21 rear derailleurs. - Robust composite and steel construction - Compatible with Shimano 6- and 7-speed mountain and road systems - Long cage for double or triple cranksets and 32T max cassette cog - Includes frame hanger attachment for use with older frame designs

- Offers the lowest friction possible while maintaining shift accuracy - Includes pulleys with ceramic balls and steel races - Long tooth profile on lower pulley for best chain retention - Chain catcher on lower pulley to prevent chain jams - Ride it on-road and off-road without restriction - Shimano R9250/R8150 Di2 - Road Seals

Kogel Oversized Kolossos Derailleur Pulley Sram eTap Red/Force Sram eTap version fits 12 speed Sram Red and Force Etap AXS derailleurs Also compatible with (post Sep. 2020) Red eTap A2 11sp derailleurs with the Hydro Clutch, NOT compatible with the original (pre Sep 2020) 11 speed etap derailleur Besides reduced friction, this cage is built with shifting accuracy, gravel worthiness and chain retention in mind Long tooth profile on lower pulley offers best possible chain retention Lower pulley assembly features a chain catcher to prevent jams Can be used dependably on or off road Oversized 14 and 19 tooth Kogel pulleys SPECIFICATIONS Model: Sram eTap AXS Road Seals Size: 14/19T

Product Type: Rear derailleur hanger Aluminum Type: Aircraft grade 6061 Cast Type: CNC Finish: Black anodized Includes Hardware: Yes Screw Bolt: M8 Chainring Bolt

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 15-tooth upper and 19-tooth lower, titanium pulley wheels with Grade 3 Silicon Nitride balls Titanium pulley wheels are 3D-printed and hollow for additional weight savings and durability Robust cage crafted from polyamide and carbon fiber for durability and light weight Two spring tension settings allow customized setup based on ride conditions Fits cassettes from 10 to 36-tooth Coated bearing races increase bearing service life by incre

CeramicSpeed's OSPW RS Alpha System for SRAM RED and Force AXS has been lifted with a distinctly modern and angular design. The updated design brings balance and refinement to the OSPW System allowing it to blend seamlessly into the contemporary design trends of bikes and groupsets - making up the whole of which the OSPW System is part. Innovative tech features of the OSPW RS Alpha meets consumer demands for a premium ride experience. The design for the OSPW RS Alpha isn't solely a visual update. The cage itself has been reinforced to offer new levels of strength and durability. The CeramicSpeed OSPW RS Alpha System continues the tradition of providing optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design. - Injection Molded Carbon Fiber reinforced PA cage offers new levels of strength and durability - Alpha disc pulleys are paired with a composite, narrow-wide tooth profile to help prevent debris from external objects getting stuck between the spokes - The 15-tooth upper and 19-tooth lower Alpha pulley wheels feature ADR bearing protection that completely encloses the bearings - Grade 3 Silicon Nitride ball bearings are 400% smoother, 128% harder and 58% lighter than standard steel balls normally used in the bicycle industry 2 customizable spring tension settings for optimal setup - Compatible with SRAM Red and SRAM Force AXS 12-speed rear derailleurs

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 15-tooth upper and 19-tooth lower, titanium pulley wheels with Grade 3 Silicon Nitride balls - Titanium pulley wheels are 3D-printed and hollow for additional weight savings and durability - Robust cage crafted from polyamide and carbon fiber for durability and lightweight - Two spring tension settings allow customized setup based on ride conditions - Fits cassettes from 10 to 36-tooth - Coated bearing races increase bearing service life by increasing hardness of race and reducing corrosion - Compatible with SRAM Red AXS, SRAM Force AXS and 2020 SRAM Red eTap 11 speed derailleur with the orbit clutch. This system is also compatible with the wider range Force AXS medium cage derailleur - CeramicSpeed products with coated bearings include a lifetime warranty

CeramicSpeed's OSPW RS Alpha System for Shimano Road Dura-Ace R9250 and Ultegra R8150 have been lifted with a distinctly modern and angular design. The updated design brings balance and refinement to the OSPW System allowing it to blend seamlessly into the contemporary design trends of bikes and groupsets - making up the whole of which the OSPW RS Alpha System is part. Innovative tech features of the OSPW RS Alpha meets consumer demands for a premium ride experience. The design for the OSPW RS Alpha isn't solely a visual update. The cage itself has been reinforced to offer new levels of strength and durability. The CeramicSpeed OSPW RS Alpha System continues the tradition of providing optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design. Injection Molded Carbon Fiber reinforced PA cage offers new levels of strength and durability Alpha disc pulleys are paired with a composite, narrow-wide tooth profile to help prevent debris from external objects getting stuck between the spokes The 13-tooth upper and 19-tooth lower Alpha pulley wheels feature ADR bearing protection that completely encloses the bearings Grade 3 Silicon Nitride ball bearings are 400% smoother, 128% harder and 58% lighter than standard steel balls normally used in the bicycle industry 4 customizable spring tension settings for optimal setup Compatible with Shimano Road Dura-Ace R9250 and Ultegra R8150 12-speed rear derailleurs Fits Brand: Shimano Fits Model: Dura-Ace R9250 , Ultegra 8150 Drivetrain Speeds: 12 Defined Color: Black

CeramicSpeed's OSPW RS for SRAM RED and Force AXS has been lifted with a distinctly modern and angular design. The updated design brings balance and refinement to the OSPW RS System allowing it to blend seamlessly into the contemporary design trends of bikes and groupsets - making up the whole of which the OSPW System is part. Innovative tech features of the OSPW RS meets consumer demands for a premium ride experience. The design for the OSPW RS isn't solely a visual update. The cage itself has been reinforced to offer new levels of strength and durability. The CeramicSpeed OSPW RS System continues the tradition of providing optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design. Injection Molded Carbon Fiber reinforced PA cage offers new levels of strength and durability Anodized aluminum 5-spoke 15-tooth upper and 19-tooth lower pulley wheels are light weight and durable Grade 3 Silicon Nitride ball bearings are 400% smoother, 128% harder and 58% lighter than standard steel balls normally used in the bicycle industry 2 customizable spring tension settings for optimal setup Compatible with SRAM Red and SRAM Force AXS 12-speed rear derailleurs