Drivetrain

Effortless performance. Effortless perfection. SRAM has refined every part of RED to create effortless one-finger braking, smooth front shifting, fully wireless connectivity, and expanded gearing choices to fit every rider. They packed in every feature they could, like new shift points and more brake adjustability, while still shaving grams off every component to bring you the lightest electronic groupset ever. Riding isn’t effortless. RED is. - Groupset includes components needed for a 2x wireless setup in a single package - hydraulic brake/shift eTap lever pair, front and rear flat mount disc calipers, 160mm Paceline X disc brake rotors, front and rear wireless derailleurs, batteries, charger and cord, Quick Start Guide, and Hammerhead Karoo GPS bike computer - RED eTap AXS™ HRD Brake/Shift System provides simple and intuitive eTap shift logic and is AXS enabled for easy personalization - Shift/brake lever Bonus Button provides ANT+ device control or auxiliary shift option - RED eTap AXS enabled front derailleur uses Yaw technology with electronic trim to ensure the fastest possible shift while eliminating chain rub in all combinations, with the easiest setup around, thanks to a brilliant new tool RED eTap AXS enabled rear derailleur covers cassette ranges from 10-28t up to 10-36t and features larger pulleys to decrease chain articulation and increase efficiency, and an Orbit fluid damper to keep everything in place over the rough stuff - Calipers are stiffer and lighter than the previous version and offer phenomenal pad clearance for rub-free operation - 160mm Paceline X disc brake rotor features a light weight carrier and a brake track that provides smooth and quiet brake operation - Included Hammerhead Karoo offers unparalleled connectivity with SRAM AXS products to allow for easier customization, better equipment awareness, and simple pairing with your groupsets, power meters, tire pressure sensors, and more - RED AXS 12-speed chain features HollowPin construction that is lighter and stronger than a solid pin, and cutouts in the outer and inner plates that made it possible to drop 13g from the previous generation - Crankset, bottom bracket and cassette sold separately

The pinnacle of cross-country cycling performance can be found in the SRAM XX SL T-Type Eagle AXS™ Transmission Power Meter 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™. - AXS™ Pod ULT features a “click and fire” two-button design that transforms the crucial act of rider inputs into a vastly more personal experience for all your AXS™ controls - Engineered as integrated, interdependent transmission components, the XX SL Eagle T-Type rear derailleur mounts around the wheel axle itself, contacting the cassette directly with a first-of-its-kind Hangerless Interface - XX SL T-Type derailleur offers the same intuitive pairing and set-up procedure as SRAM's Eagle AXS™ derailleur - To further its performance, the lower pulley called, "Magic Wheel", keeps spinning if an object becomes lodged - Derailleur features an overload clutch that accommodates common maintenance - Ultra-lightweight XX SL T-Type 10-52t cassette offers game-changing inboard and outboard shifting performance under load - XX SL Eagle AXS™ T-Type Power Meter crankset boasts SRAMs XX SL carbon crankarm with an integrated power meter to record and deliver live, accurate power readings to your head unit - Power Meter spider-based design is highly accurate, high performing and boasts a long battery life

The pinnacle of cross-country cycling performance can be found in the SRAM XX SL T-Type 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™. - AXS™ Pod ULT features a “click and fire” two-button design that transforms the crucial act of rider inputs into a vastly more personal experience for all your AXS™ controls - Engineered as integrated, interdependent transmission components, the XX SL Eagle T-Type rear derailleur mounts around the wheel axle itself, contacting the cassette directly with a first-of-its-kind Hangerless Interface - XX SL T-Type derailleur offers the same intuitive pairing and set-up procedure as SRAM's Eagle AXS™ derailleur - To further its performance, the lower pulley called, "Magic Wheel", keeps spinning if an object becomes lodged - Features an overload clutch that accommodates common maintenance - Ultra-lightweight XX SL T-Type 10-52t cassette offers game-changing inboard and outboard shifting performance under load - One of the lightest ISO certified crank on the market, the XX SL T-Type carbon crank is maximized for title winning stiffness and features the remarkable XX SL Eagle T-Type direct mount chainring - XX SL Eagle T-Type Flattop Chain is specifically engineered to optimize Eagle Transmission and features a unique flat top that maximizes shifting performance and robustness

The SRAM X0 Eagle T-Type AXS™ Transmission groupset is their most robust high-performance transmission. This T-Type transmission takes a holistic approach to a bicycles shifting, an entire system synchronized, providing you with a superior ride experience. - AXS™ Pod ULT features a “click and fire” two-button design that transforms the crucial act of rider inputs into a vastly more personal experience for all your AXS™ controls - Engineered as integrated, interdependent transmission components, the X0 Eagle T-Type rear derailleur mounts around the wheel axle itself, contacting the cassette directly with a first-of-its-kind Hangerless Interface - X0 T-Type derailleur offers the same intuitive pairing and set-up procedure as SRAM's Eagle AXS™ derailleurs - Derailleur features an overload clutch that boosts resiliency and a tucked-in profile that houses protection covers on the fully replaceable B-knuckle and outer link - The X0 Eagle T-Type 10-52t cassette and derailleur contact directly, ensuring perfect alignment on every bike - Shifting under load is made possible on the X0 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 X0 T-Type DUB all-aluminum crankset is the most advanced aluminum crankset SRAM has ever made and provides riders with a perfectly balanced stiffness to weight ratio - Crankset includes a removable 2-Guard aluminum bashguard for more rugged terrain to protect your chainring

The XX Eagle AXS E-Bike Transmission groupset has the strength to handle big enduro days with the weight to make it manageable. SRAM’s Transmissions take a holistic approach to a bicycle shifting, an entire system synchronized, providing you with a superior ride experience. Shifting under load is made possible on the XX cassette due to a combination of X-SYNC technology and cassette mapping, creating seamless shifts even during your hardest power output. T-Type chainrings and come with a clip-on guard. Specifically engineered to optimize Eagle Transmission, the XX Eagle Transmission Flattop Chain features a unique flat top for shifting performance and robustness. Featuring a “click and fire” two-button design, The AXS Pod Ultimate transforms the crucial act of rider inputs into a vastly more personal experience for all your AXS controls. - Includes clip-on guard and 104BCD 36T ring. Crank arms not included - XX Eagle Transmission derailleur - 10-52T XX Eagle Transmission cassette - XX Transmission Flattop chain - Pod Ultimate controller - AXS battery/charger

Introducing a new generation of titanium cranks from Cane Creek, the Electric Wings. A 3D-printed titanium crankset designed specifically for E-Bikes. Electric Wings are light weight, stiff, and above all extremely durable. As light as carbon cranks and as durable as heavy aluminum cranks, the Electric Wings are the only option for E-bike riders looking for both weight savings and durability. Electric Wings are compatible with electric bike drive units that use an ISIS crank spindle and is the best crank upgrade option for both E-MTB and E-Gravel/Road on the market.

The SRAM RED AXS power meter breaks with tradition — and breaks through to new levels of performance. SRAM reengineered road gearing: reducing front chainring size and adding more range to the rear cassette. They also maintained a 13-tooth delta on all chainring pairs, ensuring precise shifting for any setup. This results in more useful gearing and better shifting across all configurations. These power meters are also designed with Quarq's premier DZero power measurement technology fully integrated into the crankset. Welcome to the pinnacle of the power meter. - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Integrated power measurement - Power meter is fully integrated into the chainring set for lighter weight - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - Improved front shifting performance for crisp and accurate front shifts - Unique chainring shape results in a lighter weight, stiffer, more durable crankset - Integrated chainring design significantly reduces weight - DUB bottom bracket adds durability, simplicity and broad compatibility - Speeds: 12 - BB Compatibility: All SRAM Road DUB BBs - BB Spindle Interface: DUB - Chainring material: Aluminum - Crank arm material: Carbon - Power Meter Type: ANT+ and BLE - Bottom bracket not included

The new Super Record 12x2 Speed crankset: an intense concentration of innovation that results in the greatest possible stiffness and precision in derailing, whilst providing a dedicated aerodynamic “super design." The new carbon fiber Super Record 12x2 Speed crankset has been made lighter on the inside through Campagnolo Hollow Technology, which uses the Ultra-Torque bracket system with a titanium axle to transfer all of the force the athlete applies to the pedal to the drivetrain. The new Super Record 12x2 Speed crankset can be installed on any type of frame, whether or not it is being used with disc brakes because it optimizes the chain line on the frame with a rear hub flange measuring 130, 135 or 142 millimeters, without affecting the Q factor, which remains constant at 145.5 millimeters thanks to the new hand crank design. The use of ceramic Cult bearings leads to obtaining the smooth ride that the Campagnolo brand is known for. The innovative design of the outer chainring ensures faster, quieter derailing owing to the contoured pin. The symmetrical design of the inner chainring teeth allows improved stability with chain crossovers. The double wheel sizing standards (112 and 145 millimeters) combined with the eight fixing screws, optimize weight and stiffness through the increased use of carbon fiber. The varying number of pins for each of the three chainring combinations (34/50, 36/52, 39/53) facilitates upshifting due to the optimized free strokes associated with each combination. The special drains on the inside of the outer chainrings optimize performance when downshifting in dead spots.

Tracking your progress on gravel just got easier and more accurate. With our new spider-based power meter and removable Thread Mount chainrings, the RED XPLR AXS power meter is lightweight, reliable in all weather, and accurate within +/-1.5%. With dual-sided power measurement, even your loftiest gravel training goals are within reach. FEATURES - All-new design with removable and replaceable Thread Mount chainrings, available in 38T-46T - Power readings are accurate within +/-1.5% and aren’t affected by climate conditions during a ride - User replaceable CR2032 battery with 200-hour battery life - Measures right and left leg power balance - Ultra-light hollow carbon fiber crankarms are 29 g lighter than the previous generation - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Available in 160, 165, 167.5, 170, 172.5, and 175 mm lengths

We’ve fit the same outstanding stiffness, durability and weight savings of the eeWings mountain cranks into the slimmer road bottom bracket standard. This includes road, gravel and cyclocross configurations. - eeWings All Road 170mm, 172.5mm or 175mm - 30mm Spindle - 10 Year Warranty"

Take flight with the eeWings from Cane Creek. These titanium cranks are designed to keep up with the rigorous demands of the most aggressive trail and enduro mountain bikers—though they will benefit any rider who puts a premium on durability, stiffness and weight. - eeWings Mountain 165mm, 170mm or 175mm - 30mm Spindle - 10 year Warranty

The drivetrain embraced by core riders as the All Day best friend is now available in Transmission. The no-compromise, budget minded ethos remains built into the system but is modernized for a new generation of bikes. The GX Eagle Transmission derailleur every bit as crisp and precise as the other derailleurs in the transmission family, but features things like removable skid plates for better protection and serviceability. Shifting under load is made possible on the GX 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. It’s the crankset where pure performance meets optimal value. Its unique shape has been forged out of aluminum for strength without bulk. Its available composite removable bashguards add functionality and lets riders manage scuffs and scrapes that come with the territory. The GX Eagle Transmission (T-Type) chain is the strongest we have ever made. Specifically engineered to optimize Eagle Transmission, this all-new T-Type design features a unique flat top, and is developed specifically for the added torque loads of E-MTB thanks to its solid pins that give it incredible strength.

The drivetrain embraced by core riders as the All Day best friend is now available in Transmission. The no-compromise, budget minded ethos remains built into the system but is modernized for a new generation of bikes. The GX Eagle Transmission derailleur every bit as crisp and precise as the other derailleurs in the transmission family, but features things like removable skid plates for better protection and serviceability. Shifting under load is made possible on the GX 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. It’s the crankset where pure performance meets optimal value. Its unique shape has been forged out of aluminum for strength without bulk. Its available composite removable bashguards add functionality and lets riders manage scuffs and scrapes that come with the territory. The GX Eagle Transmission (T-Type) chain is the strongest we have ever made. Specifically engineered to optimize Eagle Transmission, this all-new T-Type design features a unique flat top, and is developed specifically for the added torque loads of E-MTB thanks to its solid pins that give it incredible strength. - Available with 165, 170, 175mm crankarm and 32T chainring - Bashguard compatible - GX Eagle Transmission derailleur - 10-52T GX Eagle Transmission cassette - GX Transmission Flattop chain - Pod controller - AXS battery/charger

The XX SL T-Type Eagle AXS™ Power Meter carbon crankset boasts SRAM's XX SL T-Type crank arm 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. The new spider design uses a proprietary chainring mount system which allows reduced weight without compromising reliability. A dual sided power measurement system calculates total watts - it’s subtle, lightweight, and boasts a long 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.

The XX Eagle T-Type AXS™ Power Meter Wide carbon crankset boasts SRAM's XX T-Type crank arm 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. The new spider design uses a proprietary chainring mount system which allows reduced weight without compromising reliability. A dual sided power measurement system calculates total watts - it’s subtle, lightweight, and boasts an extra long 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.

- AXS enabled for easy monitoring and firmware upgrades - Fully integrated power meter into a direct mount chainring - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - 8-bolt direct mount compatibility only to RED and Force eTap AXS cranks. - Speeds: 12 - Chainring material: Aluminum - Power Meter Type: ANT USB

The Campagnolo Super Record EPS 12 speed rear derailleur offers improved shifting performance with a trajectory curve that is optimized for 11-29 and 11-32 cassettes. - Using 3D Embrace technology the inner mechanism embraces more teeth per sprocket thanks to the advanced position of the upper pulley - The 12-tooth pulley wheels allow for the integration of larger cassette range while keeping chain length the same - Upper body adjustments allow you to set the perfect position whether you're riding an 11-29 or 11-32 tooth cassette - An upper body return spring absorbs the energy of any bumps, preserving the hanger, and bringing the derailleur back to position - An aluminum upper body provides high resistance to impacts and greater stiffness - The lower part of the body is made of ultra-light technopolymer, reinforced with long carbon fibers Specifications: - Largest Cog: 32 - Rear Derailleur Mount Type: 10x1 Standard - Chain Wrap Capacity (teeth): 37 - Cage Length: Medium - Rear Der/Shifter Compatibility: Campy Record/Super Record EPS - Drivetrain Speeds: 12 - Weight: 234g

The Shimano Dura-Ace RD-R9250 rear derailleur integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise shifting worthy of any podium. A single cage length shifts cassettes from 11-28 to 11-34, offering exceptional versatility. - Ultra-fast rear Di2 shifting - Compact design includes an integrated wireless unit, charger, switch - Wider range capacity - Max. low sprocket: 34t - CFRP rear derailleur plate - LED status indicator - Battery indicator, pairing, adjust mode etc.

The Campagnolo Super Record EPS 12 speed front derailleur allows for maximum front shifting performance through its inner semi-cage design which helps the chain engage with the chainring. - Designed with a narrower cage for correct coupling with the 12 speed chain - Dedicated positions for each chainring help to avoid any contact between chain and cage, reducing the possibility of dropping the chain. - Derailleur body is crafted from monolithic carbon powder technopolymer for a lightweight and stiff unit Specifications: - Double or Triple: Double - Derailleur Capacity: 16 - Front Der/Shifter Compatibility: Campy Record/Super Record EPS - Front Derailleur Style: Traditional - Front Derailleur Clamp: Braze-on - Drivetrain Speeds: 12 - Weight: 132g

More than a mechanical derailleur with a battery and a motor bolted on, the Eagle AXS derailleur is the heart of the whole AXS system. It features a shorter cage for 10mm more ground clearance, with more chain wrap on the cassette to sit slightly further forward, and further inboard from mechanical Eagle. Instantaneous shifts from a single touch even while under World Cup-winning chain loads recorded in the heat of racing and affirmed in the test lab. Tested to IP69K water and dust proofing standard so whatever race day brings, you’re ready. - XC focus and trail ready - Carbon cage - Ti hardware - Rainbow colorway - Eagle technology - Overload Clutch protection - AXS enabled componentry software that makes it possible to both program and personalize new SRAM and RockShox components - System is completely water and dust proof to IP69K - Eagle AXS is designed to work with X-DOME Eagle cassettes only, providing the most precise, silent, and reliable shift performance available. - Battery sold separately

The XX Eagle T-Type AXS™ Power Meter Wide carbon crankset utilizes SRAM's World stage proven XX crankarm with a subtly integrated power meter to record and deliver live, accurate power readings to your head unit. This is achieved by utilizing what SRAM calls “DUB-PWR” – a unique design that elegantly houses Quarq’s reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it’s subtle, lightweight, compatible with any chainring setup, and boasts an extra long battery life. It is also compatible with the RockShox Flight Attendant system, allowing for total connectivity between all AXS™ enabled components. No-compromise, no-fuss data delivery giving you an edge over the competition. - Innovative "DUB-PWR" design allows for lightweight, subtle Quarq power integration - Compatible with the RockShox Flight Attendant system, allowing for total connectivity between all AXS™ enabled components - Unique, groundbreaking design integrated with SRAM's medal winning carbon crank design - +/-3% accuracy means you'll always know your true watts output - Long battery life provides 400+ hours of usage - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Includes XX T-Type removable and replaceable 2-Guard aluminum bashguard to protect your chainring when riding rough terrain - 55mm Chainline

If your ride doesn't feel complete until you get a little dirt on your tires, you know the importance of capable components that can tackle anything. The RED XPLR eTap AXS rear derailleur is a dedicated 1x-specific unit designed for use with the XPLR 10-44 cassette. It makes for an uncluttered drivetrain that takes on pavement and singletrack with equal aplomb. Wireless and proven eTap shift logic, AXS connectivity and advanced chain management mean this derailleur does exactly what you want when you need it. - Wireless electronic eTap shift logic for intuitive shifting, easy setup, and reliability - 1x specific for use with 10-44T XPLR and 10-36T cassettes - SRAM AXS enabled, allowing easy personalization - Chain management keeps the drivetrain quiet and secure - Large X-SYNC pulleys for increased durability and efficiency - Compatible with existing eTap batteries - Cage Material (RD): Aluminum - Pulley Bearings Material: Ceramic - Max Tooth: 44 NOTE: Does not include eTap battery. Compatible with existing eTap batteries.

The SRAM RED 1 AXS crankset features exceptional 1x drivetrain design. It provides the simplicity and tighter gearing range that is well-suited for road racing and riding in flatter terrain, where a wide range would go unused. The crankset is designed specifically for electronic shifting and can be upgraded to a power meter. - Single-ring drivetrain simplifies functionality and reduces weight - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control

Triathlon. Time Trial. Cyclocross. Some disciplines are made for 1x. And while SRAM's X-Range 2x set up has integrated much of the simplicity of a 1x system, there are still times when a single ring is best. The SRAM RED 1 crankset offers the most demanding racers the right mix of features—aerodynamics, durability, and simplicity. - Single-ring drivetrain simplifies functionality and reduces weight - 48 and 50t variants feature direct mount aero chainrings for better aerodynamics - Non-aero chainrings can be installed with a single tool, making gearing changes a breeze - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - DUB bottom bracket adds durability and simplicity - Can be upgraded to a power meter - Version: D1

The SRAM RED crankset leverages a pivotal design innovation: smaller chainrings and a wider cassette range. This leads to smoother and faster shifting up front and more useful gearing for today's riders. The new configurations improve cadence and efficiency while also delivering shifts that are crisp, clean and quick-every time. Features - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Improved front shifting performance for crisp and accurate front shifts - Unique chainring design results in a lighter weight, stiffer, more durable crankset - DUB bottom bracket adds durability, simplicity and broad compatibility - Power upgradeable Specifications - Speeds: 12 - BB Compatibility: All SRAM Road DUB BBs, GXP/PF GXP 68mm - Chainring Size: 46/33, 48/35, 50/37 - Crank arm length: 165mm, 167.5mm, 170mm, 172.5mm, 175mm - Chainline: 45.0mm - BB Spindle Interface: 24mm, DUB - Chainring material: Aluminum - Guard: No Guard - Bolt Circle Diameter (BCD): Direct Mount (DM) - Crank arm material: Carbon

The SRAM RED 1 AXS crankset features exceptional 1x drivetrain design. It provides the simplicity and tighter gearing range that is well-suited for road racing and riding in flatter terrain, where a wide range would go unused. The crankset is designed specifically for electronic shifting and can be upgraded to a power meter. - Single-ring drivetrain simplifies functionality and reduces weight - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control

When SRAM found ways to make their lightest and stiffest crank even lighter, they went for it. New construction technique drops further grams from the hollow carbon arms. Paired with an aerodynamic 1x chainring, this crank is ready to help you smash PRs. Plus they're offering more crankarm lengths than ever before to ensure this crank works for you. - Single-ring drivetrain simplifies functionality and reduces weight - Direct mount aero chainrings for better aerodynamics - X-Sync wide-tooth, narrow-tooth chainring technology provides maximum chain control - Ultra-light hollow carbon fiber crankarms are 29g lighter than previous generation - Can be upgraded to a power meter set up (Power Meter chainring sold separately) - DUB bottom bracket adds durability and simplicity (Sold separately) - 45mm Chainline

The SRAM RED® crankset leverages a pivotal design innovation: smaller chainrings and a wider cassette range. This leads to smoother and faster shifting up front and more useful gearing for today’s riders. The new configurations improve cadence and efficiency while also delivering shifts that are crisp, clean and quick—every time. FEATURES: - X-Range™ gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear - Improved front shifting performance for crisp and accurate front shifts - Unique chainring design results in a lighter weight, stiffer, more durable crankset - DUB™ bottom bracket adds durability, simplicity and broad compatibility - Power upgradeable

The SRAM RED eTap rear derailleur executes shifts the instant you demand, wirelessly. It's easy to set up, clean in appearance, and delightfully uncomplicated. Mechanical necessities, such as a carbon pulley cage, ceramic pulley bearings, and anodized alloy artfully blend with proprietary electronic advancements to deliver a shifting wonder. - SRAM eTap shift logic and wireless operation - Fits all 11-speed SRAM road cassettes up to 11-32T - 2x and 1x compatible - Updated version of the original SRAM RED eTap rear derailleur - Orbit chain management technology keeps drivetrain quiet and secure - Larger X-SYNC pulleys and ceramic bearings for increased durability and efficiency - NOTE: Does not include eTap battery. Compatible with existing eTap batteries.

- Ergonomic Shifting Operation Without Stress - Shimano Synchronized Shift - Low Profile Rear Derailleur Design - Shimano Shadow Rd - Race Endurance For Less Damage In Crush - Maintains Compact And Smooth Appearance - Maximum Sprocket: 30T - Minimum Sprocket: 11T - Maximum Front Difference: 16T - Total Capacity: 35T