SRAM Level TLM SJ Disc BrakeThe SRAM Level TLM SJ Disc Brake has a championship-winning pedigree and is ready to provide exceptional braking power and reliability anywhere on the mountainside, in all weather conditions.Level TLM puts proven SRAM braking performance and consistency at your fingertips, in a sleek, lightweight design optimized specifically for cross-country and light trail use. Power and modulation are delivered via the Level TLM’s alloy lever blade, DirectLink actuation, DOT 5.1 fluid and SRAM's Level two-piston, monoblock caliper. The design provides superior heat management for consistent, fade-free performance all day long, and Bleeding Edge technology makes maintenance incredibly simple, so your brakes feel great all day - every day.Lightweight and Durable Caliper DesignIncorporates technologies developed on Guide Ultimate’s S4 caliper Moly-coated aluminium pistons for consistent rollback and easy set-up New seals, gland geometry and piston coating for improved rollback, results in easier setup and improved consistency Heat Management: piston insulators and Heat Shield reduce operating temperature and minimize heat transfer to the caliper body Bleeding Edge: new bleeding adapter and porting for quick, mess-free bleeding Two 21mm pistons Monoblock construction.Features: Compact lever body with DirectLink New detent design for reach adjust Alloy lever blade Lever pivot bushings Stainless hardware Bleeding Edge MatchMaker X compatible (mount not included) Weight: 356gTechnologies:Bleeding Edge Braking Efficiency:New bleed porting and fluid path make it easier to push fluid through the caliper for quick and easy bleeding. A dedicated bleed adapter for the Level Ultimate/TLM and S4 calipers (Guide Ultimate) plugs into the bleed port and seals the system to minimize air contamination and fluid lossTiming Port Closure:A hydraulic brake’s timing port is the connection between the reservoir and the master cylinder bore. When the lever is squeezed, a cup seal passes this area and closes the port, which pressurizes the system. SRAM’s new timing port closure system features durable seals and an ultra-smooth cylinder bore finish producing dependable braking power and consistencyContact Point Adjust: Some people like the instantaneous power of a short lever throw. Others prefer the feel of a longer throw. With Contact Point Adjust, you can pick the position you want your fingers to be in when your brakes are engaged. It’s a quick and easy way to customize the feel of your brakes without having to move the pads. It’s also a way to balance both brake levers to feel exactly the samePiggyback Reservoir: The brake fluid reservoir on SRAM’s latest lever design is optimized for both performance and ease of use. The PiggyBack Reservoir offers a simple, failsafe way to manage brake fluid, and also allows for ambidextrous lever placement—so you can switch your levers on the handlebar and run them moto without hassleDirect Link: SRAM’s DirectLink lever design produces a solid, positive feel the second you squeeze the lever to engage the brake It offers a no-nonsense solution to give you precise control.Reach Adjust Brake: Lever fit and feel is a personal thing. Riders have individual positioning preferences, as well as unique hand sizes and finger lengths. Reach Adjust makes it easy to adjust your lever for maximum one-finger control for everyoneDead Band: This refers to the time between the moment you engage the lever and when the pads contact the rotor. SRAM technologies such as SwingLink balance the dual demands of minimizing deadband and optimising modulation for braking finesse and controlExpandable Bladder: SRAM’s Level brake lever design includes a reshaped bladder, that helps regulate and reduce air bubbles. The bladder is specifically shaped to evacuate air from the lever and push the fluid exactly where it’s needed. The result is improved back-pressure relief, which produces dependable braking power and consistencyBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Force WiFLi 10 Speed Rear DerailleurQuality you can count on, this SRAM Rear Derailleur can be adjusted to your personal preference thanks to its WiFLi technology. Constructed from unidirectional carbon fibre and magnesium inner link, it is exceptionally durable and lightweight weighing in at only 190g.What's more, it benefits from WiFLi technology, which enables the rear derailleur to lengthen its cage to accommodate an 11-32 cassette. This is wider than the standard triple chainring system and saves your bike over 250g of weight. Features:WiFLi offers a wider gear range and is compatible with cassettes up to 32 TeethExact Actuation means precise, even gear changes throughout the shifting rangeCarbon-fibre outer cage and magnesium inner link provide strength and lightweightMaterial: Aluminium B-Knuckle, Magnesium Inner Link, Carbon/Aluminium CageSpeed: 10 SpeedCompatibility: 32 Teeth max cassettesCage Sizes: Mid cageWeight: 190gPart No: RD-FRC-B1Technologies: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) for 10 speed rear shifting. Exact Actuation 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 experienceBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Force 22 11 Speed Road Rear DerailleurAn ideal choice for combining with your road bike’s SRAM RED or Force drivetrain, the Force 22 11 Speed Rear Derailleur adopts technologies from more expensive models to bring you ultra-quick gear changes and almost silent operation. Enhanced with SRAM’s Exact Actuation, it offers you accurate and optimised shifting throughout your cassette’s range.SRAM has also refined the tooth geometry of this rear mechanism's jockey wheels. The result is a chain that runs smoother and quieter than ever before. Despite all these additional technologies, SRAM managed to keep its weight down to well under 200 grams.“SRAM call this 'True 22' because you can cross chain with their system - you can run the chain on the larger chainring and the largest sprocket, and the smaller chainring and the smallest sprocket...whereas Shimano and Campagnolo tell you specifically not to do this.” - Road CCFeatures:Material: Carbon Outer cage, Aluminium Inner cage, Magnesium Inner link Speed: 11-Speed Compatibility: SRAM RED 22 & Force 22 shift/brake levers Cage Size: Short Cage Maximum Low Sprocket: 28T Mount Type: Standard hanger mount Clutch Type: No Technology Highlights: AeroGlide Pulleys, Exact Actuation Exact Actuation shifting provides fast, accurate shifts More clearance with 28T cassettes thanks to a longer B-knuckle Almost silent shifting with optimised Aeroglide Pulleys Updated spring-fixed barrel adjuster Updated chain pulley cage adds precise chain management Manufacturer's Part Number: RD-FRC-B1Weight: 178g Technologies: AeroGlide Pulleys: Updated 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 its road technology from scratch, it reapplied its mountain bike (MTB) proven SRAM 1 to 1 actuation ratio (shifter cable travel to derailleur movement) for 10 speed rear shifting. Exact Actuation 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 wayBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Apex WiFLi 10sp Rear DerailleurSRAM again raises the bar on Rear Derailleur performance with the Apex Rear Derailleur. The Apex WiFLi Rear Derailleur represents the same design philosophy that has delivered our best in class products for the road market.The SRAM Apex WiFLi Rear Derailleur lengthens its cage and gets a slight variation in geometry to accommodate an 11-32 cassette. The range of gears is wider than the standard triple chainring system and saves a significant amount of weight. Features also include our precise Exact Actuation ratio that offers the widest range of adjustment coupled with a precise geometry to create market leading 10 speed performance.Features: WiFLi offers a wider gear range and is compatible with cassettes up to 32TExact Actuation means precise, even gear changes throughout the shifting rangeMaterial: Alloy outer cage/Steel inner cageWeight: 210g - Mid CageCage Sizes: Mid cageFinish: Jet Black GlossMaxtooth: 32TTechnology Highlights: Exact Actuation/WiFLiExact 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 wayWiFLi - WiFLi = Wider - Faster - LighterSRAM'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 experienceBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
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.