SRAM Red 11 Speed Road Rear DerailleurSRAM Red 11 Speed Rear Derailleur has been designed to deliver the performance advantage you have come to expect from SRAM. The derailleur is equipped with SRAM's Exact Actuation technology, which ensures precise and efficient shifting.SRAM have paid special attention to the finer details, like adding a hollow titanium anchor bolt and the use of their AeroGlide pulleys. The result is that the chain runs through the rear derailleur smoother and quieter than ever before.Features: Material: Carbon Cages, Carbon inner links, aero designed Titanium hardware Exact Actuation shifting provides fast, and accurate shifts More clearance with 28t cassettes thanks to a longer B-knuckle Medium cage (WiFLi version) compatible up to 32T cassette New silent shifting with optimised Aeroglide Pulleys with ceramic bearings New spring-fixed barrel adjuster New chain pulley cage adds precise chain management Titanium pinch bolt keeps a low profile while minimising weight Speed: 11-Speed Recommended Group: SRAM Red 11-Speed Weight: 145gTechnologies: AeroGlide Pulleys: New tooth pulley design with a sound damping effect for a super efficient and silent ride experience. Bottom and top pulleys benefit from this feature Exact Actuation: When SRAM launched their road technology from scratch they reapplied their MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement). Exact Actuation helps to simplify and stabilise the uneasy act of balancing rear derailleur hanger design, tight cog spacing, and exact cable tension. The result: the easiest index shifting system to set up—and it stays that way WiFLi (medium cage only): SRAM's WiFLi technology accommodates a wider range of gears than a standard short-cage road derailleur. Compared to a triple chainring setup, it provides faster shifts and significant weight savingsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Red 11 Speed Road Rear DerailleurSRAM Red 11 Speed Rear Derailleur has been designed to deliver the performance advantage you have come to expect from SRAM. The derailleur is equipped with SRAM's Exact Actuation technology, which ensures precise and efficient shifting.SRAM have paid special attention to the finer details, like adding a hollow titanium anchor bolt and the use of their AeroGlide pulleys. The result is that the chain runs through the rear derailleur smoother and quieter than ever before.Features: Material: Carbon Cages, Carbon inner links, aero designed Titanium hardware Exact Actuation shifting provides fast, and accurate shifts More clearance with 28t cassettes thanks to a longer B-knuckle Medium cage (WiFLi version) compatible up to 32T cassette New silent shifting with optimised Aeroglide Pulleys with ceramic bearings New spring-fixed barrel adjuster New chain pulley cage adds precise chain management Titanium pinch bolt keeps a low profile while minimising weight Speed: 11-Speed Recommended Group: SRAM Red 11-Speed Weight: 145gTechnologies: AeroGlide Pulleys: New tooth pulley design with a sound damping effect for a super efficient and silent ride experience. Bottom and top pulleys benefit from this feature Exact Actuation: When SRAM launched their road technology from scratch they reapplied their MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement). Exact Actuation helps to simplify and stabilise the uneasy act of balancing rear derailleur hanger design, tight cog spacing, and exact cable tension. The result: the easiest index shifting system to set up—and it stays that way WiFLi (medium cage only): SRAM's WiFLi technology accommodates a wider range of gears than a standard short-cage road derailleur. Compared to a triple chainring setup, it provides faster shifts and significant weight savingsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Apex 1 11 Speed Rear DerailleurThe SRAM Apex 1 Rear Derailleur brings the simplicity of mountain bike gearing to your Road, Hybrid, Gravel or Cyclocross (CX) bike so you can go where you want. Compatible with up to a 42T cassette, it will help you tackle the toughest terrain and the steepest climbs. Also, thanks to SRAM's Exact Actuation™, X-Horizon™ technologies, you'll enjoy fast, precise and reliable shifting.Features:Material: Aluminium cageCage Length/Type: Long cage fits up to a 42-tooth cogSpeed: 10 or 11-Speed SRAM Road drivetrainsClutch Options: Roller Bearing ClutchIntended Group: Apex 1x11Max Tooth: 42TPull: X-Actuation™Pulleys: Sealed cartridge bearingsCompatibility: Compatible with 10-speed and 11-speed SRAM 1x™ road systemsTechnology Highlights: Cage Lock™, Roller Bearing Clutch™, Exact Actuation™, X-Horizon™, X-Sync™Weight: 314gPart No: RD-APX-1-A1Technologies:Cage Lock™: With Cage Lock™ technology in the rear derailleur, wheel removal and installation—as well as chain installation—becomes faster and simpler. Just push the cage forward to create slack and lock it into place.Roller Bearing Clutch™: SRAM's rear derailleurs with this technology deliver maximum drivetrain stability—even through the most punishing terrain. With Roller Bearing Clutch™ technology, derailleur bounce and chain slap are eliminated without sacrificing precision.Exact Actuation™: When SRAM launched their road technology from scratch, they reapplied their mountain bike (MTB) proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement). Exact Actuation™ helps to simplify and stabilise the uneasy act of balancing rear derailleur hanger design, tight cog spacing, and exact cable tension. The result: the easiest index shifting system to set up—and it stays that way.X-Horizon™: This technology gives the rear derailleur a ‘straight parallelogram’ design, which limits all movement to the horizontal axis, making ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears.X-Sync™ Pulleys: SRAM'S 1X X-Sync™ pulleys and chainrings provide the highest level of performance and durability. Their tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. Their sharp and narrow tooth profile, as well as their rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-Sync™ chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-Sync™ rings are an integral part of the SRAM 1X™ drivetrainBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Force 1 11 Speed Rear DerailleurCyclocross-specific, the Force 1 derailleur brings you the same toughness and slick shifting ability of SRAM’s mountain bike (MTB) range. Designed for 1x11-Speed drivetrains and equipped with fully sealed bearings, it’s ready for the harshest trails.Quiet and Smooth Shifting PerformanceThe internal clutch design eliminates chain slack, making it almost impossible for the chain to fall off the chainring whilst cycling; a real benefit when riding on rough terrain. It also creates a noticeably smoother, quieter and higher performing drivetrain configuration for your bike.Features: Cage Material: Aluminium Pulley/Jockey Wheel Bearings: Steel sealed cartridge bearings Pulley/Jockey Wheel Tooth Count: 12T Speed: 11-Speed Compatibility: SRAM Force and all SRAM drop bar 11-speed shifters Mounting: Standard hanger mount Clutch Type: Yes Cable Pull Ratio: Exact Actuation Maximum Sprocket Size: Short Cage: 26T; Medium Cage: 36T; Long Cage: 42T Manufacturer's Part Number: RD-FRC-1-A2 Weight: Short Cage: 430g; Medium Cage: 434g; Long Cage: 439gTechnologies: Cage Lock: Wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into place X-Sync: The X-Sync pulley features a 12-tooth design that helps control the chain’s lateral movement Roller Bearing Clutch: Maximum drivetrain stability even through the most punishing terrain. With Roller Bearing Clutch technology, derailleur bounce and chain slap are eliminated without sacrificing precision Exact Actuation: Simplified and stabilised shifting over tight cog spacing found on modern cassettes. By using exact cable tension, the end result is the easiest index shifting system to set up and it stays that way X-Horizon: The ‘straight parallelogram’ design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gearsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Force 1 11 Speed Rear DerailleurCyclocross-specific, the Force 1 derailleur brings you the same toughness and slick shifting ability of SRAM’s mountain bike (MTB) range. Designed for 1x11-Speed drivetrains and equipped with fully sealed bearings, it’s ready for the harshest trails.Quiet and Smooth Shifting PerformanceThe internal clutch design eliminates chain slack, making it almost impossible for the chain to fall off the chainring whilst cycling; a real benefit when riding on rough terrain. It also creates a noticeably smoother, quieter and higher performing drivetrain configuration for your bike.Features: Cage Material: Aluminium Pulley/Jockey Wheel Bearings: Steel sealed cartridge bearings Pulley/Jockey Wheel Tooth Count: 12T Speed: 11-Speed Compatibility: SRAM Force and all SRAM drop bar 11-speed shifters Mounting: Standard hanger mount Clutch Type: Yes Cable Pull Ratio: Exact Actuation Maximum Sprocket Size: Short Cage: 26T; Medium Cage: 36T; Long Cage: 42T Manufacturer's Part Number: RD-FRC-1-A2 Weight: Short Cage: 430g; Medium Cage: 434g; Long Cage: 439gTechnologies: Cage Lock: Wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into place X-Sync: The X-Sync pulley features a 12-tooth design that helps control the chain’s lateral movement Roller Bearing Clutch: Maximum drivetrain stability even through the most punishing terrain. With Roller Bearing Clutch technology, derailleur bounce and chain slap are eliminated without sacrificing precision Exact Actuation: Simplified and stabilised shifting over tight cog spacing found on modern cassettes. By using exact cable tension, the end result is the easiest index shifting system to set up and it stays that way X-Horizon: The ‘straight parallelogram’ design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gearsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Rival 1 11 Speed Rear DerailleurThe SRAM Rival 1 Rear Mech delivers incredibly smooth, quiet and reliable shifting even in the most demanding conditions. It takes the proven technologies of SRAM's 1x mountain bike derailleur design and applies them to provide exceptional off-road performance for cyclocross use.Quiet and Smooth Shifting PerformanceThe internal clutch design eliminates chain slack, making it almost impossible for the chain to fall of the chainring whilst cycling; a real benefit when riding on rough terrain. It also creates a noticeably smoother, quieter and higher performing drivetrain configuration for your bike.Features: Cage Material: Aluminium Pulley Bearings: Steel sealed cartridge bearings Pulley Wheel Size: 12T Speed: 11-Speed Cable Pull Ratio: Exact Actuation Maximum Sprocket Size: Medium Cage: 36T; Long Cage: 42T Weight: Medium Cage: 432g; Long Cage: 438gTechnologies: Cage Lock: Wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into place. X-Sync: The X-Sync pulley features a 12-tooth design that helps control the chain’s lateral movement Roller Bearing Clutch: Maximum drivetrain stability even through the most punishing terrain. With Roller Bearing Clutch technology, derailleur bounce and chain slap are eliminated without sacrificing precision. Exact Actuation: Simplified and stabilised shifting over tight cog spacing found on modern cassettes. By using exact cable tension, the end result is the easiest index shifting system to set up and it stays that way. X-Horizon: The ‘straight parallelogram’ design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Rival 1 11 Speed Rear DerailleurThe SRAM Rival 1 Rear Mech delivers incredibly smooth, quiet and reliable shifting even in the most demanding conditions. It takes the proven technologies of SRAM's 1x mountain bike derailleur design and applies them to provide exceptional off-road performance for cyclocross use.Quiet and Smooth Shifting PerformanceThe internal clutch design eliminates chain slack, making it almost impossible for the chain to fall of the chainring whilst cycling; a real benefit when riding on rough terrain. It also creates a noticeably smoother, quieter and higher performing drivetrain configuration for your bike.Features: Cage Material: Aluminium Pulley Bearings: Steel sealed cartridge bearings Pulley Wheel Size: 12T Speed: 11-Speed Cable Pull Ratio: Exact Actuation Maximum Sprocket Size: Medium Cage: 36T; Long Cage: 42T Weight: Medium Cage: 432g; Long Cage: 438gTechnologies: Cage Lock: Wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into place. X-Sync: The X-Sync pulley features a 12-tooth design that helps control the chain’s lateral movement Roller Bearing Clutch: Maximum drivetrain stability even through the most punishing terrain. With Roller Bearing Clutch technology, derailleur bounce and chain slap are eliminated without sacrificing precision. Exact Actuation: Simplified and stabilised shifting over tight cog spacing found on modern cassettes. By using exact cable tension, the end result is the easiest index shifting system to set up and it stays that way. X-Horizon: The ‘straight parallelogram’ design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM NX Eagle 12 Speed Rear DerailleurThe NX Eagle 12-Speed Rear Mech provides the same shifting performance as the top of the range XX1 and X01 equivalents from SRAM, but at a more affordable price. Featuring SRAM’s 1x specific X-Horizon cage design, which ensures capacity and shifting accuracy for the huge 11-50T cassette range while complimenting the smooth shifting performance of the Eagle 12-Speed drivetrain transmission. This mech also features the SRAM Type-3 Roller Bearing Clutch to provide industry-leading durability, quiet performance and unmatched shifting stability. Gap Adjustment Gauge not included.Cage Lock: With Cage Lock technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into placeRoller Bearing Clutch: The Roller Bearing Clutch delivers maximum drivetrain stability even through the most punishing terrain. This stability benefits the drivetrain dramatically, as derailleur bounce and chain slap are eliminated without sacrificing precision.Features: Material: Aluminium (cage), Steel (spring, pulley), Stainless Steel (hardware) Max Tooth: 50T Compatibility: All 12-Speed Eagle drivetrains Gap Adjustment Gauge not included Weight: 339g Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM RED eTap AXS 12sp Rear Derailleur Exploring new limits has never been easier with this AXS enabled rear derailleur that's specifically developed for the demands of modern road cycling. It features a high-quality carbon cage material for fantastic strength and durability, without adding any unnecessary weight to your bike. Thanks to its AXS wireless technology, it offers easy personalisation, while its advanced chain management keeps it silence and secure no matter the terrain. Another highlight is it comes with faster pulleys, bearings, motors and signals to improve speed in every way and ensure you're always in the right gear.AXS Enabled Rear DerailleurControl. Personalize. Monitor. AXS is SRAM’s bike component integration system that takes eTap wireless shifting to the next level. The SRAM AXS app allows riders to see battery status, change component behaviour, personalise controls, get maintenance reminders, and update firmware.Super Smooth Orbit TechnologyOn tarmac or gravel, 1x or 2x, eTap AXS gives a quiet, secure, and smooth ride. Thanks to the ultra-lightweight Orbit fluid damper, you’ll ride more confidently and efficiently than ever, no matter the terrain.X-Range Modern GearingRoad bikes are faster and more capable than ever before, and riders are expanding what’s possible with drop bar bikes. X-Range offers wider range, more useful and smoother gear progression, as well as smarter shift settings, enabled by AXS.Features: Cage Material: Carbon Pulley Bearings Material: Ceramic Use: Road Speed: 12 speed Cage Size: Short Cage Max Tooth: 33T Battery Included: No, available separatelyTechnologies: X-SYNC: SRAM X-SYNC 1x chainrings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1x drivetrain. Accept no imitation. eTap: All of the underlying tech in our new SRAM RED eTap groupset, such as wireless shifting, advanced battery power management, and mechatronics technologies, are meant to serve one ultimate purpose: to facilitate the most intuitive and consistent shifting available. This shift logic is called eTap. Right lever makes it harder, left lever makes it easier, both levers shift the front derailleur. Simple, unmistakable, and intuitive. Orbit: Orbit technology is an innovative new form of derailleur motion control. It utilizes silicon fluid as part of an elegant and ultra-lightweight damper system. Compared to a standard friction clutch system, Orbit technology places no additional resistance on the rear derailleur’s spring when under slow or light movement. This means easier shifting and rear wheel removal. And while riding, the fluid damper reduces chain bounce. It’s rock-solid reliability for both 1x and 2x systems. AXS: AXS is SRAM’s new bike component integration system that connects electronic bicycle components and software. The SRAM AXS app allows riders to see battery status, change component behavior, personalize controls, get maintenance reminders, and update firmware. X-Range: Road bikes are faster and more capable than ever before, and riders are expanding what’s possible with drop bar bikes. X-Range is gearing for today’s road riding. We completely reimagined road gearing for wider range, more useful and smoother gear progression, as well as smarter shift settings—enabled by AXS. With X-Range, you’re always in the right gear.Manufacturer's Part Number: 00.7518.120.000Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Rival eTap AXS 12 Speed Rear DerailleurBenefitting from wireless electronic eTap shift logic, this 12 speed rear derailleur provides intuitive shifting, easy setup and reliability on your road bike. SRAM has also equipped this model with a rock-solid aluminium cage with steel pulley bearings, so you'll benefit from the best balance of strength, durability and performance on every mile of road. SRAM AXS Enabled Road Bike Rear DerailleurThis rear derailleur is low on complexity, but rich with features. SRAM has equipped it with its renowned AXS wireless technology, which allows for easy personalisation and control on your road bike. Thanks to its eTap shift logic, it delivers intuitive shifting, easy setup and reliability that has been proven at the highest levels. AXS technology means personalisation is in your hands.The precision and reliability of 12-speed eTap AXS, now at a whole new level. On any surface you can imagine, in any drivetrain configuration, the Rival eTap AXS rear derailleur will 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- 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 personalisation- Chain management keeps the drivetrain quiet and secure- X-SYNC pulleys for increased durability and efficiencyFeatures: Cage Material: Aluminium Pulley Bearings Material: Steel Use: Road Speed: 12 speed Cage: Medium cage Max Tooth: 36 Battery Included: Not included, battery available separatelyTechnologies: AXS Enabled: AXS is SRAM's bike component integration system that connects electronic bicycle components and software. Control: AXS lets you connect your AXS-enabled components to a mobile app, where you can assign custom actions to your controls. Everything speaks the same language, and you can even combine road and mountain bike parts to build the party bike of your dreams. Personalise: Wireless controls open the door to new levels of customisation. With AXS, you can personalise your component behavior to match your riding style and preferences. Turn on enhanced shifting modes, or reassign shifting actions. Measure: The AXP Mobile App and AXS Web allow you to monitor your bike's performance and readiness. It's an easy way to keep tabs on your battery levels—including the CR2032 batteries in eTap shift levers—and keep AXS component firmware up-to-date. AXS Web analyses your ride files specific to shifting, gear use, power zones, and tyre pressure, so that you can quickly and easily learn more about how your bike is working for you and consider adjustments.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Force eTap AXS 12 Speed Rear DerailleurFeaturing a tough aluminium cage construction and steel pulley bearings, this versatile rear derailleur is built to withstand the challenges that are associated with road and gravel riding. SRAM has also ensured that this model is AXS enabled, so riders can benefit from easy personalisation and control wherever their journey takes them. Another highlight is its Orbit chain management technology that's specifically designed to keep your drivetrain quiet and secure when travelling on rough roads and gravel. This makes it a great choice of upgrade for riders who want to explore further when the tarmac comes to an end.SRAM AXS Enabled Road Bike Rear DerailleurFast, precise rear shifting is now more attainable than ever. Whether you ride 2x or 1x, tarmac or gravel, the SRAM Force eTap AXS rear derailleur is up for the task. It features Orbit damper technology for quiet, secure chain management over rough roads and capitalizes on larger X-SYNC pulleys for improved durability and efficiency.- Orbit chain management technology keeps the drivetrain quiet and secure- Compatible with both 1x and 2x drivetrains- SRAM AXS enabled, allowing easy personalisation- 36t-max derailleur option is compatible with 10-36, 10-33, and 10-28 cassettes- 33t-max derailleur option is compatible with 10-26, 10-28, and 10-33 cassettes- Larger X-SYNC pulleys for increased durability and efficiency- Compatible with existing eTap batteriesFeatures: Cage Material: Aluminium Pulley Bearings Material: Steel Use: Road, Gravel Speed: 12 speed Max Tooth: Multiple options available to selectTechnologies: AXS Enabled: AXS is SRAM's bike component integration system that connects electronic bicycle components and software. Control: AXS lets you connect your AXS-enabled components to a mobile app, where you can assign custom actions to your controls. Everything speaks the same language, and you can even combine road and mountain bike parts to build the party bike of your dreams. Personalise: Wireless controls open the door to new levels of customisation. With AXS, you can personalise your component behavior to match your riding style and preferences. Turn on enhanced shifting modes, or reassign shifting actions. Measure: The AXP Mobile App and AXS Web allow you to monitor your bike's performance and readiness. It's an easy way to keep tabs on your battery levels—including the CR2032 batteries in eTap shift levers—and keep AXS component firmware up-to-date. AXS Web analyses your ride files specific to shifting, gear use, power zones, and tyre pressure, so that you can quickly and easily learn more about how your bike is working for you and consider adjustments. X-Sync: SRAM X-SYNC chainrings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain earlier than traditional triangle-shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1x drivetrain. Accept no imitation. Orbit: Orbit technology is an innovative form of derailleur motion control. It utilises silicon fluid as part of an elegant and ultra-lightweight damper system. Compared to a standard friction clutch system, Orbit technology places no additional resistance on the rear derailleur's spring when under slow or light movement. This means easier shifting and rear wheel removal. And while riding, the fluid damper reduces chain bounce. It's rock-solid reliability for both 1x and 2x systems.Manufacturer's Part Numbers: 00.7518.121.001 Grey Short Cage Max 33t 00.7518.136.000 Grey Medium Cage Max 36tBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Force eTap AXS 12 Speed Rear DerailleurFeaturing a tough aluminium cage construction and steel pulley bearings, this versatile rear derailleur is built to withstand the challenges that are associated with road and gravel riding. SRAM has also ensured that this model is AXS enabled, so riders can benefit from easy personalisation and control wherever their journey takes them. Another highlight is its Orbit chain management technology that's specifically designed to keep your drivetrain quiet and secure when travelling on rough roads and gravel. This makes it a great choice of upgrade for riders who want to explore further when the tarmac comes to an end.SRAM AXS Enabled Road Bike Rear DerailleurFast, precise rear shifting is now more attainable than ever. Whether you ride 2x or 1x, tarmac or gravel, the SRAM Force eTap AXS rear derailleur is up for the task. It features Orbit damper technology for quiet, secure chain management over rough roads and capitalizes on larger X-SYNC pulleys for improved durability and efficiency.- Orbit chain management technology keeps the drivetrain quiet and secure- Compatible with both 1x and 2x drivetrains- SRAM AXS enabled, allowing easy personalisation- 36t-max derailleur option is compatible with 10-36, 10-33, and 10-28 cassettes- 33t-max derailleur option is compatible with 10-26, 10-28, and 10-33 cassettes- Larger X-SYNC pulleys for increased durability and efficiency- Compatible with existing eTap batteriesFeatures: Cage Material: Aluminium Pulley Bearings Material: Steel Use: Road, Gravel Speed: 12 speed Max Tooth: Multiple options available to selectTechnologies: AXS Enabled: AXS is SRAM's bike component integration system that connects electronic bicycle components and software. Control: AXS lets you connect your AXS-enabled components to a mobile app, where you can assign custom actions to your controls. Everything speaks the same language, and you can even combine road and mountain bike parts to build the party bike of your dreams. Personalise: Wireless controls open the door to new levels of customisation. With AXS, you can personalise your component behavior to match your riding style and preferences. Turn on enhanced shifting modes, or reassign shifting actions. Measure: The AXP Mobile App and AXS Web allow you to monitor your bike's performance and readiness. It's an easy way to keep tabs on your battery levels—including the CR2032 batteries in eTap shift levers—and keep AXS component firmware up-to-date. AXS Web analyses your ride files specific to shifting, gear use, power zones, and tyre pressure, so that you can quickly and easily learn more about how your bike is working for you and consider adjustments. X-Sync: SRAM X-SYNC chainrings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain earlier than traditional triangle-shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1x drivetrain. Accept no imitation. Orbit: Orbit technology is an innovative form of derailleur motion control. It utilises silicon fluid as part of an elegant and ultra-lightweight damper system. Compared to a standard friction clutch system, Orbit technology places no additional resistance on the rear derailleur's spring when under slow or light movement. This means easier shifting and rear wheel removal. And while riding, the fluid damper reduces chain bounce. It's rock-solid reliability for both 1x and 2x systems.Manufacturer's Part Numbers: 00.7518.121.001 Grey Short Cage Max 33t 00.7518.136.000 Grey Medium Cage Max 36tBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.