SRAM Force 22 WiFLi 11 Speed Rear DerailleurAdopting some of SRAM’s best technologies, the Force 22 WiFli rear mechanism brings you fast and precise shifting and compatibility with up to 11-32 tooth cassettes. This makes it an ideal choice for modern adventure, gravel and cyclocross (CX) bikes so you can tackle the toughest terrain and maintain your pedalling rhythm.With WiFLi, the rear derailleur lengthens its cage and gets a slight variation in geometry to accommodate an 11-32T cassette. The new range of gears is wider than the standard triple chainring system and saves well over 250 grams. The SRAM Force Rear Derailleur is crafted with cutting-edge materials, including a unidirectional carbon-fibre outer mid cage and a magnesium inner link.Features: Material: Aluminum B-Knuckle, Magnesium Inner Link, Carbon/Aluminum Cage Speed: 11-Speed (suitable for use in 1x11 or 2x11-Speed drivetrains) Compatibility: SRAM RED 22 and Force 22 drop bar 11-Speed shifters, 11-Speed chains Cassette Compatibility: 11-32T maximumCage Size: Medium cageMount Type: Standard hanger mountClutch Type: NoTechnology Highlights: Exact Actuation/WiFLi/AeroGlide PulleysWiFLi offers a wider gear range and is compatible with cassettes up to 32TExact Actuation means precise, even gear changes throughout the shifting rangeCarbon-fibre outer cage and magnesium inner link provide strength and light weightSilent shifting with optimized AeroGlide PulleysManufacturer's Part Number: RD-FRC-B1Weight: 190gTechnologies: Exact Actuation - When SRAM launched its road technology from scratch it reapplied its mountain bike (MTB) proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 11 speed rear shifting. EA helps to simplify/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 - WiFLi = Wider - Faster - Lighter - SRAM's WiFLi Technology is based on the compact 2 x 11 - two front chainrings and 11 gears in the rear - a design inherent in SRAM Apex and Rival. This delivers a wider range of gears than your standard triple, faster shifts through two chainrings and 11 gears, and with significant weight savings. It's an updated technology from the company that continues to innovate the cycling experienceBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Rival 22 11sp Rear DerailleurSRAM has risen to the highest levels of professional cycling by giving riders componentry that inspires confidence and performs flawlessly.With many of the world's top teams 'Making the Leap' to SRAM, there is little doubt that wins at the Classics, Grand Tours, Ironman(), and Cross Worlds were due in part to the lightest, most efficient, and ergonomic road componentry ever made.Features:Exact Actuation shifting provides fast, accurate shiftsAeroGlide pulleys optimized for silent shiftingAluminum outer and inner cagesConfigured to maximize shifting performance for 22 usable gearsWeight: 180gSpeeds: 11Material Steel: Aluminium Outer & Inner Cages/ Aluminum Links, Stainless Steel hardwareWeight: 180gCompatibility: Cassettes from 11-25 to 11-28Finish: Grey & Black Anodized FinishTechnology Highlight(s): Exact Actuation/ AeroGlide PulleysAeroGlide 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 featureExact Actuation: When we launched our road technology from scratch we reapplied our MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10 speed rear shifting. EA helps to simplify/stabilize 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 wayBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Rival 22 WiFLi 11 Speed Rear DerailleurThis professional Rear Derailleur from SRAM inspires confidence when tackling the toughest trails. Made from durable, lightweight aluminium, this flawless component is the ideal addition to your ride. With many of the world's top teams ‘Making the Leap’ to SRAM, there is little doubt that wins at the Classics, Grand Tours, Ironman(™), and Cross Worlds were due in part to the lightest, most efficient, and ergonomic road componentry ever made.Features:Mid-cage derailleur works with cassettes up to 32 teethWiFLi™ delivers a wider range of gears than your standard triple, faster shifts through two chainrings and every gear on the rear cassette, and with significant weight savingsCage Length/Type: Aluminium Cage, Medium, Mid (WiFLi), ShortSpeed: 11 SpeedMaterial Steel: Aluminium Outer & Inner Cages/ Aluminium Links/ Stainless Steel hardwareClutch Option: Compatibility: Cassettes from 11-26 to 11-32Finish: Grey & Black Anodized FinishWeight: 191gPart No: RD-RIV-B1Technologies: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 we launched our road technology from scratch, we reapplied our MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10 speed rear shifting. EA helps to simplify/stabilize 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™: SRAM's WiFLi™ Technology is based on the compact 2 x 10 - two front chainrings and 10 gears in the rear - design inherent in SRAM Apex and Rival, which delivers a wider range of gears than your standard triple, faster shifts through two chainrings and 10 gears, and with significant weight savings. It's the newest technology from the company that continues to innovate the cycling experience.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM X01 Type 2.1 11 Speed Rear DerailleurThanks to its “horizontal parallelogram” design, X-HORIZON can keep the chain gap the same across all 11 gears. By taking vertical movement out of the equation, this design doesn’t just make shifting faster—it reduces shift force and eliminates ghost shifting.Features: Cage Lock: The first rear derailleur of its kind, SRAM Type 2.1 lets you push your cage forward and lock it into place with the push of a button. This creates slack, removing all tension from the chain. With Cage Lock, Type 2.1 makes wheel removal and installation—as well as chain installation—easier than any other derailleur on earth. Just push the cage forward—creating slack—and lock it in place. The chainstays perfectly loose, letting the derailleur swing out of the way. When you’re ready to ride again, simply unlock the cage and go Roller Bearing Clutch: Designed for X0 and X9 families, the Roller Bearing Clutch eliminates derailleur bounce and chain slap without sacrificing precision. The maintenance free clutch design accurately controls chain tension and creates smooth, reliable performance and consistent shifting accuracy. X-Actuation: Developed specifically for SRAM XX1, X-ACTUATION keeps shifting sharp and consistent across the entyre 10-42T cassette X-Horizon: This XX1 rear derailleur’s “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 consistent chain gap across all gears X-Sync: A CNC-machined, “wide tooth, narrow tooth” pattern is repeated around the entyre XX1 chainring, perfectly mirroring the 1X11 XX1 specific chain’s inner and outer links for maximum controlSpecifications: Speeds: 11-speed Material: Inner Cage: Alloy; Outer Cage: Carbon Fibre Weight: 252g Compatibility: 1X11 Capacity: 32T Pulleys: 12-tooth X-SYNC pulley wheelsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM X01 Type 2.1 11 Speed Rear DerailleurThanks to its “horizontal parallelogram” design, X-HORIZON can keep the chain gap the same across all 11 gears. By taking vertical movement out of the equation, this design doesn’t just make shifting faster—it reduces shift force and eliminates ghost shifting.Features: Cage Lock: The first rear derailleur of its kind, SRAM Type 2.1 lets you push your cage forward and lock it into place with the push of a button. This creates slack, removing all tension from the chain. With Cage Lock, Type 2.1 makes wheel removal and installation—as well as chain installation—easier than any other derailleur on earth. Just push the cage forward—creating slack—and lock it in place. The chainstays perfectly loose, letting the derailleur swing out of the way. When you’re ready to ride again, simply unlock the cage and go Roller Bearing Clutch: Designed for X0 and X9 families, the Roller Bearing Clutch eliminates derailleur bounce and chain slap without sacrificing precision. The maintenance free clutch design accurately controls chain tension and creates smooth, reliable performance and consistent shifting accuracy. X-Actuation: Developed specifically for SRAM XX1, X-ACTUATION keeps shifting sharp and consistent across the entyre 10-42T cassette X-Horizon: This XX1 rear derailleur’s “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 consistent chain gap across all gears X-Sync: A CNC-machined, “wide tooth, narrow tooth” pattern is repeated around the entyre XX1 chainring, perfectly mirroring the 1X11 XX1 specific chain’s inner and outer links for maximum controlSpecifications: Speeds: 11-speed Material: Inner Cage: Alloy; Outer Cage: Carbon Fibre Weight: 252g Compatibility: 1X11 Capacity: 32T Pulleys: 12-tooth X-SYNC pulley wheelsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM X1 Type 2.1 11sp Rear DerailleurEvery detail of the 11-speed X1 X-HORIZON rear derailleur is engineered for smooth, reliable shifting action—from the larger upper pulley offset to the 12-tooth X-SYNC pulley wheels.By eliminating unwanted chain movement, X-HORIZON shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with CAGE LOCK technology, wheel removal and installation are easier than ever. With CAGE LOCK technology in the rear derailleur, wheel removal and installation—as well as chain installation—becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place ROLLER BEARING CLUTCH rear derailleurs 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 Developed specifically for SRAM 1X, X-ACTUATION keeps shifting sharp and consistent across the entire 10- to 42-tooth cassette The X-HORIZON rear derailleur’s ‘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 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 drivetrainFeatures: Speeds: 11-speed Material: Aluminum cage Weight: 256g Compatibility: X-ACTUATION Bearings: Sealed cartridge bearings Pivot Design: Horizontal Parellelogram design Pulleys: 12-tooth X-SYNC pulley wheelsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM XX1 Type 2.1 11sp Rear DerailleurWith its “horizontal parallelogram” design and pulley offset, X-Horizon keeps the chain gap constant across all 11 gears, providing fast, precise shifts. By limiting all movement to the horizontal axis, this design is faster, reduces shift force and eliminates ghost shifting.Roller Bearing Clutch technology reduces bounce and chain slap. Cage Lock technology makes wheel removal and installation easier than ever before. Paired with the XX1 shifter, the X-Horizon RD forms the backbone of X-Actuation technology for unbelievably smooth shifting action. With Cage Lock technology in the rear derailleur, wheel removal and installation—as well as chain installation—becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place Roller Bearing Clutch rear derailleurs 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 X-Actuation: Developed specifically for SRAM 1X, X-ACTUATION keeps shifting sharp and consistent across the entire 10- to 42-tooth cassette The X-Horizon rear derailleur’s ‘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 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 drivetrainFeatures: Speeds: 11 Speed Weight: 245g Compatibility: X-Actuation, XX1 11 Speed Pulleys: 12T X-Sync pulley wheelsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM GX Type 2.1 10 Speed Rear DerailleurThis SRAM GX 10-speed rear mechanism is developed to work with the SRAM 10 speed MTB shifters and a 2x chainring setup. Using a 1:1 cable pull ratio and a rolling bearing clutch this tough component will ensure you have a crisp and precise gear change.Leveraging the legendary history of SRAM shifting, the GX 2x10 rear derailleur provides incredible shifting speed and precision. EXACT ACTUATION technology eliminates chain slackness 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.Features: Material: Aluminium Speed: 10-Speed Mount Type: Standard hanger mount Compatibility: Exact Actuation Recommended Group: GX 2x10 Maximum Cassette Low Sprocket Capacity: 36T Shifter Capability: SRAM 10 speed flat bar shifters ONLY Cable Pull Ratio: 1:1 SRAM Part No. RD-GX-T21-A1 Weight: 302gCage Length Information:Short Cage Option: Total chain wrap capacity of 30T (Ideal for use with downhill (DH) / enduro bikes with a smaller chainring up front)Medium Cage Option: Total chain wrap capacity of 35T (Ideal for use with all mountain (AM) / trail bikes with a medium chainring up front)Long Cage Option: Total chain wrap capacity of 47T (ideal for use with touring bikes with a larger chainring up front)Technologies: Exact Actuation - SRAM launched their road technology from scratch, they reapplied their MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10 speed rear shifting. EA helps to simplify/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. Cage Lock: With this technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place. Roller Bearing Clutch: Rear derailleurs with the 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 precisionBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM GX Type 2.1 10 Speed Rear DerailleurThis SRAM GX 10-speed rear mechanism is developed to work with the SRAM 10 speed MTB shifters and a 2x chainring setup. Using a 1:1 cable pull ratio and a rolling bearing clutch this tough component will ensure you have a crisp and precise gear change.Leveraging the legendary history of SRAM shifting, the GX 2x10 rear derailleur provides incredible shifting speed and precision. EXACT ACTUATION technology eliminates chain slackness 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.Features: Material: Aluminium Speed: 10-Speed Mount Type: Standard hanger mount Compatibility: Exact Actuation Recommended Group: GX 2x10 Maximum Cassette Low Sprocket Capacity: 36T Shifter Capability: SRAM 10 speed flat bar shifters ONLY Cable Pull Ratio: 1:1 SRAM Part No. RD-GX-T21-A1 Weight: 302gCage Length Information:Short Cage Option: Total chain wrap capacity of 30T (Ideal for use with downhill (DH) / enduro bikes with a smaller chainring up front)Medium Cage Option: Total chain wrap capacity of 35T (Ideal for use with all mountain (AM) / trail bikes with a medium chainring up front)Long Cage Option: Total chain wrap capacity of 47T (ideal for use with touring bikes with a larger chainring up front)Technologies: Exact Actuation - SRAM launched their road technology from scratch, they reapplied their MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10 speed rear shifting. EA helps to simplify/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. Cage Lock: With this technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place. Roller Bearing Clutch: Rear derailleurs with the 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 precisionBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM GX Type 2.1 10 Speed Rear DerailleurThis SRAM GX 10-speed rear mechanism is developed to work with the SRAM 10 speed MTB shifters and a 2x chainring setup. Using a 1:1 cable pull ratio and a rolling bearing clutch this tough component will ensure you have a crisp and precise gear change.Leveraging the legendary history of SRAM shifting, the GX 2x10 rear derailleur provides incredible shifting speed and precision. EXACT ACTUATION technology eliminates chain slackness 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.Features: Material: Aluminium Speed: 10-Speed Mount Type: Standard hanger mount Compatibility: Exact Actuation Recommended Group: GX 2x10 Maximum Cassette Low Sprocket Capacity: 36T Shifter Capability: SRAM 10 speed flat bar shifters ONLY Cable Pull Ratio: 1:1 SRAM Part No. RD-GX-T21-A1 Weight: 302gCage Length Information:Short Cage Option: Total chain wrap capacity of 30T (Ideal for use with downhill (DH) / enduro bikes with a smaller chainring up front)Medium Cage Option: Total chain wrap capacity of 35T (Ideal for use with all mountain (AM) / trail bikes with a medium chainring up front)Long Cage Option: Total chain wrap capacity of 47T (ideal for use with touring bikes with a larger chainring up front)Technologies: Exact Actuation - SRAM launched their road technology from scratch, they reapplied their MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10 speed rear shifting. EA helps to simplify/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. Cage Lock: With this technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place. Roller Bearing Clutch: Rear derailleurs with the 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 precisionBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM GX 1x11 Speed Rear DerailleurCarefully engineered to bring you consistent and reliable gear shifts when out on the trails, the GX 11-speed rear MTB derailleur is specifically designed for use in a 1x11 drivetrain. It adopts many of the same technologies as seen on SRAM’s top-end XX1 range such as X-Horizon, X-Actuation and the Roller Bearing Clutch system. This means you’ll always have fast and precise shifts and excellent chain retention over the roughest terrain.Features: Material: Aluminium Cage Speed: 11-speed Compatibility: 1x11 SRAM MTB shifters, 11-speed MTB cassettes Mounting: Standard hanger type mount Max Tooth: 42T Pulleys: X-Sync™ Pull: X-Actuation™ Technology Highlights: X-Horizon™, X-Actuation™, X-Sync™, Roller Bearing Clutch™, Cage Lock™ Clutch Type: Yes Suitable for 1x11 drivetrains only Weight: 265g Manufacturer Reference Codes:Black Long Cage: 00.7518.081.000; Red Long Cage: 00.7518.081.001Technologies:Cage Lock™: With this technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place.Roller Bearing Clutch™: Rear derailleurs with the 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 precisionX-Actuation™: Developed specifically for SRAM 1X, X-Actuation keeps shifting sharp and consistent across the entyre 10- to 42-tooth cassetteX-Horizon™: The rear derailleur’s ‘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 gearsSRAM 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.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM GX 1x11 Speed Rear DerailleurCarefully engineered to bring you consistent and reliable gear shifts when out on the trails, the GX 11-speed rear MTB derailleur is specifically designed for use in a 1x11 drivetrain. It adopts many of the same technologies as seen on SRAM’s top-end XX1 range such as X-Horizon, X-Actuation and the Roller Bearing Clutch system. This means you’ll always have fast and precise shifts and excellent chain retention over the roughest terrain.Features: Material: Aluminium Cage Speed: 11-speed Compatibility: 1x11 SRAM MTB shifters, 11-speed MTB cassettes Mounting: Standard hanger type mount Max Tooth: 42T Pulleys: X-Sync™ Pull: X-Actuation™ Technology Highlights: X-Horizon™, X-Actuation™, X-Sync™, Roller Bearing Clutch™, Cage Lock™ Clutch Type: Yes Suitable for 1x11 drivetrains only Weight: 265g Manufacturer Reference Codes:Black Long Cage: 00.7518.081.000; Red Long Cage: 00.7518.081.001Technologies:Cage Lock™: With this technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place.Roller Bearing Clutch™: Rear derailleurs with the 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 precisionX-Actuation™: Developed specifically for SRAM 1X, X-Actuation keeps shifting sharp and consistent across the entyre 10- to 42-tooth cassetteX-Horizon™: The rear derailleur’s ‘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 gearsSRAM 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.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.