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Eagle Technology creates the smoothest, quietest, longest lasting and most efficient drivetrains SRAM has ever made. The radical new look and feel of the X-SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings. The longer, positive-rake tooth shape has been designed to work perfectly with Eagle chains to increase chain retention and overall pedaling efficiency, while decreasing friction, noise, and wear. The complete Eagle system—crankset, chainring, chain, shifter, derailleur and cassette—is designed, tested, and proven to deliver the ultimate mountain bike drivetrain. Put simply, Eagle is capable of revolutionizing the ride for all riders on every kind of terrain. - Designed to be used with Eagle chain - Material: Steel

Rugged durability comes naturally to the Eagle T-Type direct mount chainring. Finished with a distinct, dual-spoke design your shifting will never be compromised. Available in three different tooth counts, there is ample room to refine and customize your bike’s feel. - 8 Bolt direct mount - 30-38T range and +3mm offset variants - Compatible with T-Type chains

The GX Eagle Transmission 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 we’ve ever made. It also features the first ever tool-free cage and clutch assembly – so it’s both removable and upgradable too. With a steel inner cage that adds even more robustness, it’s been built for riders of the real world. Just like all Eagle Transmission 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. The revolutionary Full Mount attachment method creates a far stronger connection because it grips both sides of the frame. Let the record show that the GX Eagle Transmission derailleur plays second fiddle to nothing. It’s all in for all day. - Revised battery position, reconfigured gearbox, replaceable skid plates and outer link, tool-free cage and clutch - Install and pair via the reliable and familiar standard AXS set-up and pairing procedure - Hangerless Interface, Full Mount attachment method - Radically clear setup process, no adjustment required - AXS battery and Pod controller available separately

The XX SL Eagle AXS Transmission power meter crankset boasts SRAM's new XX SL crankarm with an integrated power meter to record and deliver live, accurate power readings to your head unit. Utilizing an all-new spider-based design, this is SRAM's most accurate, high performing power meter. SRAM's new spider design uses a proprietary chainring mount system which has allowed us to reduce weight without compromising reliability. A dual sided power measurement system calculates total watts, it’s subtle, lightweight, and boasts unbeatable battery life. It is also compatible with the RockShox Flight Attendant system, allowing for total connectivity between all AXS enabled components. No-compromise, high-performance data delivery giving you an edge over the competition. All new design with proprietary chainrings, available in 32-38T Compatible with RockShox Flight Attendant Unique, groundbreaking design integrated with SRAM's lightest crank ever +/-1.5% accuracy User replaceable CR2032 battery 200-hour battery life Bluetooth low energy technology wireless data transfer MagicZero - automatically checks and recalibrates your power meter as you ride AxCad - no cadence magnet required 10K temperature compensation Waterproof (IPX7 waterproof to 1 meter for 30 minutes)

Compatible with all other SRAM Eagle drivetrains, the SX Eagle Trigger Shifter keeps the promise of a simple shift. SX Eagle means easy, intuitive shifting every time for every rider.

The SRAM NX crankset delivers Eagle styling and performance to the newest addition to the Eagle ecosystem. Designed for SRAM's X-SYNC 2 chainrings, the NX crankset is engineered for complete chain control—each tooth's profile is precisely engineered to work quietly, efficiently, and securely with the Eagle chain's inner and outer links. DUB technology features a better-engineered bottom bracket and a new spindle design, which together allows for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Now everyone can benefit from a new measure of performance and durability. - 6000 series forged aluminum arms - 66.5mm chainline

The SRAM NX crankset delivers Eagle styling and performance to the newest addition to the Eagle ecosystem. Designed for SRAM's X-SYNC 2 chainrings, the NX crankset is engineered for complete chain control—each tooth's profile is precisely engineered to work quietly, efficiently, and securely with the Eagle chain's inner and outer links. DUB technology features a better-engineered bottom bracket and a new spindle design, which together allows for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Now everyone can benefit from a new measure of performance and durability. - 6000 series forged aluminum arms - 49.0mm chainline

SRAM X01 Eagle AXS Upgrade Kit - Rear Derailleur for 52t Max, Battery, Eagle AXS Rocker Paddle Controller with Clamp, Charger/Cord The SRAM X01 Eagle AXS Upgrade kit includes all of the electronic shifting components needed to introduce customizable AXS technology to your Eagle drivetrain. - Includes the SRAM X01 Eagle AXS rear derailleur with battery, Eagle controller with clamp, and charger and cord - The Eagle AXS controller offers a unique wireless shifting experience with ergonomic touchpoints that are customizable to your preferences - you can choose what each button does through the AXS App -Derailleur provides instantaneous shifting from a single touch, even under the heaviest of loads, and features a shorter cage that allows for 10mm more ground clearance and more chain wrap on the cassette - The X01 Eagle AXS Rear Derailleur is compatible with 10-52t Eagle cassettes

Eagle Technology creates the smoothest, quietest, longest-lasting, and most efficient drivetrains we've ever made. The radical new look and feel of our X-SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings. The longer, positive-rake tooth shape has been designed to work perfectly with the new Eagle chain to increase chain retention and overall pedaling efficiency, while decreasing friction, noise, and wear. - X-SYNC 2 chainring design increases chain retention, wear life, and reduces friction and noise. - Designed to be used with Eagle chain - Non-Boost 6mm offset

Rugged durability comes naturally to the XX Eagle T-Type direct mount chainring. Finished with a distinct, dual-spoke design your shifting will never be compromised. 3mm offset Light weight and incredibly durable aluminum chainring 8-bolt direct mount design (Mounting bolts included) Compatible with SRAM T-Type chains

The SRAM DUB bottom bracket series has a simple job—to connect crankarms and protect the smooth, long-lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility. - Designed for use with SRAM Wide Cranksets - Gutter Seal Technology drastically improves sealing against the elements - Sealed cartridge bearings - One oversized spindle to work across every bottom bracket standard

The XX SL Eagle T-Type 12-Speed 10-52t cassette is a major reason why Eagle Transmission offers one of the best-ever inboard and outboard shifting performance under load. Thanks to its full X-SYNC design, the harder you pedal, the better it shifts. This is the lightest Eagle cassette SRAM has made, as well as, their our most precise and long lasting. Its new-gen features a fully machined, hardened steel X-Dome architecture for gears 1-9 and an ultra-lightweight, all-aluminum Spider Cog for gears 10-12. Engineered as integrated and interdependent transmission components, the XX Eagle Transmission Cassette and derailleur contact directly, ensuring perfect alignment on every bike. - From its massive 520% gear range, the 52 tooth cog steps down with improved gear progression with 44 and 38 tooth cogs in the low end (compared to the Eagle drivetrain 10-52-tooth cassette) - New-gen design is SRAM's lightest 10-52t cassette due to the ultra-lightweight, all-aluminum Spider Cog - 55mm chainline compatibility for more moderate chain angle, longer wear and greater precision - Utilizes well accepted and broadly available XD driverbody - Featuring a clearly marked Setup Cog for simple and fool-proof installation - Not suitable for E-MTB

Strength is how the X01 Eagle™ DUB™ crankset takes capability to places never before reached. It's the strongest crank in the entire Eagle™ ecosystem, and it holds this status at a weight that is hard to fathom. Featuring industry-proven and rider-beloved DUB™ technology to radically simplify the relationship of spindle to bottom bracket, delivering unprecedented simplicity, compatibility and durability. The X01 Eagle™ DUB™ Crankset also comes with our Eagle™ Colorsystem, in the X01® master colorway - to go perfect with all other available cassette and chain colors – from Black to Gold to Rainbow, and now Copper. With a raw aluminum finish on the X-SYNC 2™ chainring teeth – to keep looking fresh throughout its long lifespan. FEATURES: - The strongest crank in the entire Eagle™ ecosystem. - Master X01® colorway as part of Eagle™ Colorsystem – goes with all cassette and chain color options. - Available in the X01® master colorway and Oxy Red X01® signature colorway. - Raw aluminum chainring teeth to fresh throughout the entire lifespan of the precision CNC machined direct mount ring. SPECIFICATIONS: - CRANK ARM LENGTH: 165mm, 170mm, 175mm - BB SPINDLE INTERFACE: DUB - BB COMPATIBILITY: DUB:BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73, BSA MTB68SP - SPEEDS: 11/12 - CHAINRING MATERIAL: Aluminum - BOLT CIRCLE DIAMETER (BCD): Direct Mount (DM) - CHAINLINE: 9.0mm, 52.0mm, 55.0mm, 56.5mm - CHAINRING SIZE: 32T

The GX Eagle Transmission (T-Type) chain is the strongest SRAM has ever made. Specifically engineered to optimize Eagle Transmission, this all-new T-Type design features a unique flat top. In addition to this shape maximizing shifting performance and upgrading the aesthetics of any bike, it is developed specifically for the added torque loads of E-MTB thanks to its solid pins that give it incredible strength. - Specifically engineered for Eagle Transmission - Flattop profile, unbelievable shifting performance, game-changing aesthetics - Nickel plated outer links with chrome hardened inner links provide excellent corrosion and wear resistance - PowerLock connector - Fully approved for E-MTB use with solid pins.

Eagle Technology creates the smoothest, quietest, longest-lasting, and most efficient drivetrains we've ever made. The radical new look and feel of our X-SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings. The longer, positive-rake tooth shape has been designed to work perfectly with the new Eagle chain to increase chain retention and overall pedaling efficiency, while decreasing friction, noise, and wear. - X-SYNC 2 chainring design increases chain retention, wear life, and reduces friction and noise. - Designed to be used with Eagle chain - Boost 3mm offset

We know you have a lot of choices when choosing a crankset, and your choice says a lot about your personal style. We designed the new X01 Eagle crankset for riders who feel most stylish when they stand on top of the podium. This is a completely reengineered design, employing our proprietary CARBON TUNED lay-up technology. Built tough, to handle aggressive lines through rock gardens and big hits wherever you find them. The new X01 Eagle is our best, toughest and most aggressive Trail and Enduro crankset thanks to DUB technology, which features a better-engineered bottom bracket and a new spindle design. Together, these allow for a more uniform approach to bottom bracket fitment, better sealing against contamination-and define a new measure of durability. If you're into that kind of thing. - DUB technology delivers the strongest, stiffest, lightest crankset available - SRAM CARBON TUNED crank technology provides extreme stiffness and light weight - Chainring technology is designed specifically for Eagle chains and drivetrains - The X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and extraordinary durability

The most advanced aluminum crankset SRAM has ever made, the X0 Eagle T-Type Wide crankset is utterly unique and simply striking. Bringing serious riders the exact sort of legitimate performance X0 stands for, courtesy of a ground-breaking all-aluminum design with a perfectly balanced stiffness to weight ratio. - Unique, ground-breaking design and one of the lightest aluminum cranksets on the market - All-aluminum design provides perfect stiffness to weight ratio - Includes X0 T-Type removable and replaceable 2-Guard aluminum bashguard to protect your chainring when riding rough terrain - 55mm Chainline - 174mm Q-factor - DUB bottom bracket and spacers NOT included

True competitors are always looking for a performance advantage — a relentless pursuit of equipment that is lighter, stiffer, stronger, and more durable. To create the best drivetrain possible, we re-examined and re-engineered our crankset design. Our all-new XX1 Eagle CARBON TUNED crankset is our lightest, stiffest, and strongest to date. DUB technology enhances this by simplifying the relationship of the spindle to the bottom bracket and redefining the measure of durability. DUB-powered cranksets mean simplicity, compatibility, and durability. Specifications: - CRANK ARM LENGTH: 165mm, 170mm, 175mm - BB SPINDLE INTERFACE: DUB - BB COMPATIBILITY: All SRAM MTB WIDE DUB BBs, DUB:BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73, BSA MTB68SP - SPEEDS: 12 - CHAINRING MATERIAL: No rings - BOLT CIRCLE DIAMETER (BCD): Direct Mount (DM) - CHAINLINE: 55.0mm, n/a - CHAINRING SIZE: No rings

It’s undeniable that some riders’ pedaling styles benefit from oval chainrings, so SRAM has engineered the new X-SYNC 2 Oval chainrings to give them the advantage they want. They are the only oval option available with SRAM's genuine X-SYNC 2 teeth profile, so they are the only oval chainrings on the market that are 100-percent optimized for Eagle. - Direct Mount Type: Direct Mount SRAM - Drivetrain Speeds: 10, 11, 12 - Material: Aluminum - Ring Position/Type: Chain Retaining Single Ring - Chainline/Hub Compatibility: 135/142 MTB Hubs, 150/157 DH Hubs, 170/177 Hubs

True competitors are always looking for a performance advantage—a relentless pursuit of equipment that is lighter, stiffer, stronger, and more durable. To create the best drivetrain possible, we re-examined and re-engineered our crankset design. Our all-new XX1 Eagle CARBON TUNED crankset is our lightest, stiffest, and strongest to date. DUB technology enhances this by simplifying the relationship of the spindle to the bottom bracket and redefining the measure of durability. DUB-powered cranksets deliver simplicity, compatibility, and durability. - DUB technology delivers the lightest, stiffest, and strongest crankset available - SRAM CARBON TUNED crank technology provides extreme stiffness and low weight - The X-SYNC 2 chainring provides significantly quieter performance with better mud clearing and extraordinary durability - New colorway is matched to work with XX1 Eagle AXS-enabled componentry

SRAM GX Eagle drivetrains are engineered for optimal performance. Eagle drivetrains are designed, tested, and proven to deliver durable performance for all riders. Eagle technology provides an expanded, optimum gear range and is 100-percent compatible with all levels of SRAM Eagle drivetrain systems. - The GX crankset is engineered for complete chain control with each tooth precisely designed to work seamlessly with the chain’s inner and outer links - The GX Eagle rear derailleur gets the job done with an updated cage architecture that improves chain management and is compatible with both 10-52T and 10-50T cassettes - The XG-1275 10-52T cassette offers expanded 520% gear range and features SRAM's Full Pin technology, making it both lightweight and durable - The trigger shifter puts total control of your gear selection into the thumb of one hand - GX Eagle chain for smooth and efficient shifting - DUB bottom bracket sold separately

Ride anywhere with the wide-range PG-1230, 11- to 50-tooth Eagle cassette. The NX cassette gives riders every bit of the climbing range that the Eagle ecosystem affords with a simple upgrade to splined-drive body wheels. The PG-1230 is the only Eagle cassette designed to be durable enough to withstand the increased demands of E-MTB applications and a perfect solution to heavy-duty use and abuse. 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. SRAM guarantees this performance when Eagle drivetrains are used as a complete ecosystem. For additional information, please contact your SRAM Sales Contact. - Compatible with a splined driver body - Wide 11-50T gear range—a perfect fit for any ride - Optimized gear steps across entire range - 11-50T: 11, 13, 15, 17, 19, 22, 25, 28, 32, 36, 42, 50

The SRAM GX Eagle drivetrain embraced by core riders as the All Day best friend is now available in Transmission (T-Type). The no-compromise, budget minded ethos remains built into the system but is modernized for a new generation of bikes. - AXS™ Pod features a “click and fire” two-button design that transforms the crucial act of rider inputs into a more personal experience for all your AXS™ controls - GX Eagle T-Type rear derailleur mounts around the wheel axle itself, contacting the cassette directly with a first-of-its-kind Hangerless Interface - GX Eagle T-Type derailleur offers the same intuitive pairing and set-up procedure as SRAM's Eagle AXS™ derailleurs - GX Eagle T-Type derailleur features things like removable skid plates for better protection and serviceability - Shifting under load is made possible on the GX Eagle T-Type cassette due to a combination of X-SYNC technology and cassette mapping, creating seamless shifts even during your hardest power output - The GX Eagle Transmission DUB crankset stands apart and gives no-nonsense riders a no-compromise balance of form and function

The SRAM RED eTap AXS Electronic system is an intuitive, high performance wireless groupset. At the core of this drivetrain is AXS - the electronic integration platform that allows you to easily personalize the groupset right from your phone and enable your choices while riding. Orbit chain management provides a reassuringly quiet, secure and smooth ride, whatever the terrain. This groupset includes: - SRAM Red eTap AXS Crankset (choose arm length and chainring size) - SRAM Red eTap AXS Cassette (choose ratio) - SRAM AXS Chain - SRAM Red eTap AXS Electronic Kit - all electronic components for a 2x setup in a single package - hydraulic brake/shift lever pair, front and rear flat mount disc calipers, CenterLock 160mm disc rotors, front and rear derailleurs, battery, charger and cord, and Quick Start Guide

AXS Eagle Transmission is a first-of-its-kind, revolutionary step forward in bike drivetrain design. This completely wireless electronic SRAM Eagle Transmission entirely revamps the derailleur interface for better performance, a more robust design, and less required maintenance. This fully-wireless drivetrain eliminates the derailleur hanger, limit, and b-tension screws, and mounts directly to the wheel axle, for a system that shifts under load and limits required maintenance. AXS Eagle Transmission represents a revolutionary approach to mountain bike shifting. This GX-level Transmission E-MTB groupset brings this technology to the masses, with a mid-tier price and top-end performance, built specifically for the unique demands and torque loads of your favorite E-MTB. This Groupset includes nearly everything you need to build up a new E-MTB of your dreams, or upgrade your favorite UDH-compatible frame to the revolutionary Transmission Groupset. Available for Bosch, Brose, and 104 BCD motor systems. FEATURES GX E-MTB series provides the E-MTB shifting performance you want at the price you need Completely wireless, independent transmission for quick, precise shifts without the fuss of cables or wires GX Eagle Transmission rear derailleur mounts directly to the wheel axle—without a derailleur hanger or adjustment screws—for robust precision in every condition GX Eagle E-MTB Crankset is designed specifically for the unique torque loads and demands of E-MTB Complete drivetrain includes: crankset, rear derailleur, Pod Ultimate Controller, cassette, chain, and battery with charger Reliable AXS system shares the same effortless, easily-customizable setup as the rest of the AXS ecosystem

The XG-1299 cassette completes the expression of the world's most accomplished and sought after bikes. Designed for use with our proven, reliable XD driver body, this 12-speed cassette offers a massive gear range. In independent tests, the X-Dome architecture is proven to yield the strongest cassette on the market. New shifting characteristics improve both inboard and outboard shifting as well as chain retention. - SRAM’s cassette manufacturing technology provides the greatest durability and lightest weight - All-new shifting features create a smoother, quieter system with enhanced inboard and outboard shift performance - XD driver body compatible Cogs - 10 – 50T: 10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 50 - 10 – 52T: 10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 52

The XX1 Eagle DUB crankset has been re-examined and re-engineered. Featuring SRAM’s DUB technology, this design simplifies the relationship of the spindle to the bottom bracket. DUB-powered cranksets mean simplicity, compatibility, and durability. - SRAM DUB technology creates a lighter, stiffer and stronger crankset - Carbon-tuned lay-up crank design provides extreme stiffness and light weight - Included direct mount X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and durability - Chainring is designed specifically for Eagle chains and drivetrains - DUB compatible bottom bracket sold separately - Boost Compatible - BB Included: No - Chainring BCD: SRAM Direct Mount - Crank Intended Use: Mountain - Number of Chainrings: Single - Drivetrain Speeds: 12, 11, 10 - Spindle Interface Type: SRAM DUB - Chainline/Hub Compatibility: 141/148 Boost Hubs

Groupset includes: - SRAM XX1 Eagle Rear Derailleur - 12-Speed, Long Cage, 52t Max - SRAM XX1 Eagle Trigger Shifter - Rear, 12-Speed, Discrete Clamp - SRAM XX1 Eagle XG-1299 Cassette - 12-Speed, 10-52t - SRAM XX1 Eagle Chain - 12-Speed, 126 Links - Crankset not included

The pinnacle of cross-country cycling performance can be found in the new XX SL Eagle AXS Transmission groupset. Built to serve the most demanding rider’s needs in the lightest weight configuration, XX SL Transmission is the evolution of SRAM's World Champion, World Cup winning XX Eagle AXS. XX SL T-TYPE EAGLE AXS 12 SPEED REAR DERAILLEUR The new XX SL Eagle Transmission derailleur features T-Type mounting, securing 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. The XX SL Eagle Transmission derailleur features a carbon cage, a replaceable outer link and b-knuckle cover in a Hangerless interface, full mount attachment method Super strong, super light, unrivaled shifting performance. Install and pair via the reliable and familiar standard AXS set-up and pairing procedure. This is unrivaled shifting performance, light weight and unprecedented strength. XS-1299 T-TYPE EAGLE 10-52 12 SPEED CASSETTE The new XX SL Transmission cassette is a major reason why Eagle Transmission offers the best-ever inboard and outboard shifting performance under load. Thanks to its full X-SYNC design, the harder you pedal, the better it shifts. SRAM's lightest Eagle cassette in history lasts far longer and delivers more precision. Its new-gen design is fully machined, hardened steel X-Dome architecture for gears 4-12 and an ultra-lightweight, all-aluminum Spider Cog for gears 1-3. XX SL EAGLE DUB 34T T-TYPE POWER METER CRANKSET The XX SL Eagle AXS Transmission power meter crankset boasts SRAM's new XX SL crankarm with an integrated power meter to record and deliver live, accurate power readings to your head unit. Utilizing an all-new spider-based design, this is SRAM's most accurate, high performing power meter. SRAM's new spider design uses a proprietary chainring mount system which has allowed them to reduce weight without compromising reliability. A dual sided power measurement system calculates total watts, it’s subtle, lightweight, and boasts unbeatable battery life. It is also compatible with the RockShox Flight Attendant system, allowing for total connectivity between all AXS enabled components. No-compromise, high-performance data delivery giving you an edge over the competition. XX SL T-TYPE EAGLE SILVER 12 SPEED CHAIN Specifically engineered to optimize Eagle Transmission, the XX SL Eagle Transmission Flattop Chain features a unique flat top. Not only does this shape maximize shifting performance and robustness, but it also contemporizes the look of your super bike, especially with its outer plate cut outs that push the strength-to-weight ratio to an unprecedented level AXS POD ULTIMATE 2-BUTTON CONTROLLER Featuring a “click and fire” two-button design, The AXS Pod offers lighter weight than Eagle Ecosystem AXS Controllers, updated ergonomics and a vastly superior range of adjustability. Plus, it allows riders to personalize button assignments through the AXS App and features lever caps with subtle grip. With a unique flippable design, AXS Pods can be mounted left- or right-handed it’s one component, with a world of possibilities. -Available with 165/170/175mm power meter crankarm and 34T chainring -XX SL Eagle Transmission derailleur -10-52T XX SL Eagle Transmission cassette -XX SL Transmission Flattop chain -Pod Ultimate controller -AXS battery/charger -Only Compatible with Hangerless Interface Frames (UDH)

This four piece groupset contains GX Eagle cassette and chain, and Eagle X01 rear derailler and trigger shifter. This SRAM GX/X01 Eagle four piece Groupset includes: - SRAM X01 Eagle 12-Speed Trigger Shifter - SRAM X01 Eagle 12-Speed Type 3 Rear Derailleur - SRAM XG-1275 GX Eagle Cassette 10-50 12 Speed - SRAM GX Eagle Hollow Pin 12-Speed Chain 126 links With PowerLock, Silver/Gray