Parts

The SRAM eTap Force AXS Electronic Groupset offers exceptional range, smooth gear progression, and the simplicity of SRAM eTap. At the core of this drivetrain is AXS—the electronic integration platform that allows you to easily personalize the groupset right from your phone and enable your choices while riding. Orbit technology offers next-level chain management for all the places a drop bar bike can go. - Groupset includes all electronic components for a 2x setup in a single package: hydraulic brake/shift lever pair, front and rear flat mount disc calipers, 160mm Center Lock disc rotors, front and rear derailleurs, battery, charger, and cord, along with a Quick Start Guide - The SRAM Force eTap AXS HRD brake/shift System features simple and intuitive eTap shift logic and is AXS-enabled for easy personalization - Brakes feature contact point and reach adjustments to customize hand and braking preferences - The Force eTap AXS front derailleur features classic SRAM Yaw trimless cage technology with an optimized cage profile for SRAM Force front chainring combinations - Battery placement on the front derailleur is streamlined to allow for more rear tire clearance - The Force eTap AXS rear derailleur features Orbit chain management technology to keep the drivetrain quiet and secure and features larger X-Sync pulleys for increased durability and efficiency

A vital tool for serious cyclists, the DURA-ACE FC-R9200-P power meter delivers reliable, waterproof, dual-sided power measurement. With a rechargeable battery and Bluetooth®LE and ANT+ connectivity, the FC-R9200-P is a user-friendly training partner. The DURA-ACE FC-R9200-P power meter brings everything a data-driven cyclist could want. Its integrated, waterproof design brings all-weather reliability while delivering accurate information including left/right balance. A rechargeable Li-ion battery is user-friendly and Bluetooth®LE and ANT+ connectivity ensure easy setup. Integrated, waterproof, and rechargeable Li-ion battery - Up to 300+ hours of ride time * Depending on ANT+/Bluetooth®LE settings Accurate data collection - < 1.5% strain gage accuracy throughout the entire calibration range * Depending on ANT+/Bluetooth®LE settings - Proprietary strain gauge Possible to start quickly - Simple zero offset calibration with switch on transmitter Active temperature compensation - Software automatically compensates for temperature changes

You asked. We listened. eTap is now available for Force. SRAM Force eTap AXS offers the key features of RED eTap AXS—modern gearing, advanced chain management, and easy personalization—in a more affordable package. Exploring new limits has never been easier. SRAM Force eTap AXS—Simply Beyond. Upgrade kit includes: - Shifters - Front Derailleur and battery - Rear Derailleur and battery - Charger and cord - Quick Start Guide

Offering all the precision and functionality of the DURA-ACE power meter, the ULTEGRA FC-R8100-P power meter comes in a more affordable package. Scientific training requires accurate measurement and user-friendliness, and the new ULTEGRA R8100 power meter has both. Its dual-sided measurement is accurate within 1.5% and zero offset calibration is a quick and easy process. Perhaps most importantly, its long battery life, easy recharge, and ANT+ and Bluetooth®LE connectivity makes using and recording your workouts easier than ever. Integrated, waterproof, and rechargeable Li-ion battery - Up to 300+ hours (TBD*) of ride time * Depending on ANT+/Bluetooth®LE settings Accurate data collection - ±1.5% (TBD*) strain gage accuracy throughout the entire calibration range * Depending on ANT+/Bluetooth®LE settings - Proprietary strain gauge Possible to start quickly - Simple zero offset calibration with switch on transmitter Active temperature compensation - Software automatically compensates for temperature changes

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.

Rally RK200 is tested to the extreme, so you can ride there too. This dual-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to ensure total reliability. Featuring a superior design with sensors housed inside, these sleek pedals install like any pedal. And they're quick to transfer between bikes. - Advanced Cycling Dynamics—In addition to total power and cadence, Rally RK200 measures much more. These metrics help you tailor your training around your specific weaknesses and strengths to help you improve. - Left/Right Balance—Measure power from your left leg versus power from your right leg to get a better look at how symmetrically you're producing power. - Seated vs. Standing—Track the amount of time you spend in each position and gauge position effectiveness. - Power Phase—Get a clear look at where you're producing power in the pedal stroke. - Platform Center Offset—Ensure proper cleat position by keeping track of where power is applied on the pedal. - Cleat Compatibility—For a comfortable ride, these pedals are designed with your favorite LOOK KEO cleats in mind. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round. A transferable spindle can be installed in Rally RS road or Rally XC off-road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) or CR1/3N (x2) - Battery life: up to 120 hours - Maximum rider weight: 105kg - Accuracy: +/- 1% - Field calibration - Adjustable release tension - Measurement location: spindle - Communication: ANT+ and BLUETOOTH - Weight: 326g - Water resistance: IPX7 - Cleat type: KEO - Q-factor: 53mm (55mm with provided 2mm washer) - Stack height: 12.2mm In the Box: - Rally RK200 pedals - Cleat hardware - 55mm Q-factor washers - Documentation

WE ARE PROUD TO INTRODUCE OUR MOST ADVANCED INTEGRATED HANDLEBAR TO DATE. The New TALON ULTRA Light is the new MOST integrated handlebar developed for the DOGMA. We have revised the the construction of the carbon lamination plans, also helped by new and improved technologies, weight reduced by more than 13% compared to the previous version.

BREAKTHROUGH POWER Built on the cutting-edge SPEEDPLAY pedal platform, POWRLINK ZERO delivers reliably accurate power and cadence data in a race-proven pedal system. This powerful combination creates an unrivaled power pedal that helps cyclists optimize performance to break through to the next level. A POWERFUL COMBINATION POWRLINK ZERO combines proven sports science and years of industry-leading research with the superior adjustability, increased power transfer, reduced weight, and enhanced aerodynamics of the SPEEDPLAY platform to create a pedal system that delivers a distinct performance advantage. BETTER YOUR BEST Accurate to +/- 1%, POWRLINK ZERO’s internal gyroscope removes cadence variation to measure power output more precisely. Combined with Wahoo’s sports-science based algorithms, cyclists get accurate values they can use to achieve next-level performance gains. LASTING POWER POWRLINK ZERO is made with premium materials for superior strength-to-weight ratio – making it perfect for enduring efforts. In addition, the rechargeable battery lasts up to 75-hours per charge to give you the power to go long. Really long. In the box - Left and Right Power Pedals - Washer (x2) - Cleat Assembly - Screw Packet - Charging Cable and Clips - Quick Start Guide - Important Product Information Guide Additional Tools Required for Assembly: #1 and #2 Philips Head Screwdriver and 8mm Allen Wrench"

Shimano Dura-Ace ST-R9250 dual control levers are the ultimate in reliable performance thanks to a wired connection to the rim brakes. Refined ergonomics and advanced materials show the race pedigree of these levers. - Quick and intuitive 12-speed Di2 shifting - Clearly defined click feeling with ergonomic shifting lever - Better bike control and confidence in race conditions - Hood shape and texture optimize grip and brake power transmission

The heart of the connected cadre. The SRAM RED eTap AXS rear derailleur is AXS enabled for easy personalization and designed for both 1x and 2x systems. Advanced chain management keeps it silent and secure no matter the terrain. The derailleur also comes with faster pulleys, bearings, motors, and signals, improving speed in every way. - SRAM AXS-enabled for easy personalization - Orbit chain management technology keeps drivetrain quiet and secure - A single rear derailleur for all gearing combinations, including 1x and 2x - Improved motor and signal travel for faster shifting - Larger X-SYNC pulleys and ceramic bearings for increased durability and efficiency - Compatible with existing eTap batteries - Battery sold separately

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 Campagnolo Super Record EPS Ergopower shift lever features effective ergonomics and the best of Campagnolo's shifting and braking technology. - Campagnolo's Multishifting technology allows you to change several sprockets on the 12-speed cassette with a single shift - When the chain engages immediately, the derailleurs can be actioned with minimum effort and in any position on the handlebars, allowing for quick shifting - The controls offer a stable and safe grip when standing pedaling or when leaning high on the handlebars - Shaped cushioning and an adjustable reach make these controls perfect for any cyclist, regardless of hand or finger size - The flat-mount Campagnolo brake caliper ensures powerful, modular braking in any situation owing to pistons measuring 22mm in diameter - Brake pad return guaranteed by the magnetic system ensures that there is no friction at the time of brake lever release - A special metal plate positioned between the pad and the caliper piston, cushions the vibrations during braking Specifications: - Pad Compound: Semi-Metallic - Brake Caliper Mount: Flat Mount - Brake Lever Use: Right - Hydraulic Fluid Type: Mineral Oil - Front Der/Shifter Compatibility: Campy Record/Super Record EPS - Rear Der/Shifter Compatibility: Campy Record/Super Record EPS - Drivetrain Speeds: 12 - Adjustable Reach: Yes

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 C1 chainring is a full featured, crank-based power meter that features dual-sided measurement. The FSA-made, one-piece chainring design provides added stiffness for shifting no matter the terrain. Available in 53/39, 52/36 and 50/36 chainring tooth options for 5 bolt, 110 BCD cranks, the C1 mounts to existing hardware on the bike. Additionally, dual band ANT+ and Bluetooth SMART connectivity make the C1 an obvious choice for riders looking for more features and better value.

BREAKTHROUGH POWER Built on the cutting-edge SPEEDPLAY pedal platform, POWRLINK ZERO delivers reliably accurate power and cadence data in a race-proven pedal system. This powerful combination creates an unrivaled power pedal that helps cyclists optimize performance to break through to the next level. A POWERFUL COMBINATION POWRLINK ZERO combines proven sports science and years of industry-leading research with the superior adjustability, increased power transfer, reduced weight, and enhanced aerodynamics of the SPEEDPLAY platform to create a pedal system that delivers a distinct performance advantage. BETTER YOUR BEST Accurate to +/- 1%, POWRLINK ZERO’s internal gyroscope removes cadence variation to measure power output more precisely. Combined with Wahoo’s sports-science based algorithms, cyclists get accurate values they can use to achieve next-level performance gains. LASTING POWER POWRLINK ZERO is made with premium materials for superior strength-to-weight ratio – making it perfect for enduring efforts. In addition, the rechargeable battery lasts up to 75-hours per charge to give you the power to go long. Really long. In the box - Left Power Pedal and Compatible Right Pedal - Washer (x2) - Cleat Assembly - Screw Packet - Charging Cable and Clips - Quick Start Guide - Important Product Information Guide Additional Tools Required for Assembly: #1 and #2 Philips Head Screwdriver and 8mm Allen Wrench"

The new Reverb AXS XPLR dropper post delivers more control, confidence, and fun on gravel roads everywhere. Getting the saddle out of the way means more room to move, saving you from awkward maneuvering and sketchy descents. We created an all-new design complete with lightweight air-only internals featuring built-in compliance we call ActiveRide. It's like travel for your saddle. Enabled by SRAM AXS technology, Reverb AXS XPLR is part of the ultimate personalized cockpit. - New 27.2mm Reverb AXS XPLR delivers more control, confidence, and fun for gravel - ActiveRide—Air only internals provide a fully rigid top-out position. With the touch of your AXS controller, you've got built-in compliance to ensure comfort and control over the roughest sections of gravel - Two travel options to choose—50mm or 75mm - Saddle clamp options compatible with 7x10 oval carbon rails. - Seat post length includes 400mm and 350mm (50mm drop only) - AXS Technology allows rider customization via the AXS Mobile App - AXS handlebar controls (drop or flat bar) - Shared battery with all other SRAM AXS enabled components - System is completely waterproof and dustproof to IP69K—take it anywhere - SRAM AXS battery and charger included SPECIFICATIONS: - TRAVEL: 50mm, 75mm - POST DIAMETER: 27.2mm - POST LENGTH: 350mm, 400mm - REMOTE: AXS Controller Sold Separately - SADDLE RAIL COMPATIBILITY: Round/Oval (7x9 & 7x10), Round/Oval (7x9) - WEIGHT (G): 562 - WEIGHT BASED ON: 75mm Travel 400mm Length W/O battery - Battery 25g

The Bontrager XXX Integrated Handlebar/Stem is a one-piece carbon bar/stem combo that brings clean looks and light weight to any road bike. Lightweight 100% OCLV Carbon construction offers a great road feel and control, while calibration marks and a flat front surface ensure easy lever installation. Features Di2 compatible ports for clean internal wire routing when integrated with Shimano EW-RS910 bar-mounted Di2 junction. Product details - Seamless accessory integration with Blendr - Flat surface front of bar for clean cable routing - Calibration marks allow precise, accurate and repeatable brake lever position - Variable radius, compact flare (VR-CF) shape offers wrist clearance in the drops - 100% OCLV Carbon construction - Internal relief channel eliminates need for additional spacer above stem - Safe for use with carbon and alloy steerer tubes - Compatible with Shimano EW-RS910 bar end Junction-A for cleaner Di2 routing

SRAM's RED 22 Hydro Shift Levers deliver pro-level shifting performance, unmatched ergonomics, and the power and modulation of hydraulic braking. You’ll instantly notice that the hydraulic rim brake requires lower hand force than a traditional cable pull road brake, and provides optimized power and modulation that enhances every ride. The hydraulic rim brake caliper has a tool-free contact point adjustment, a quick release for easy wheel changes, and a huge 27.4mm rim width compatibility. As soon as you wrap your hands around the hoods, you’ll fall in love with the great texture that increases grip while offering additional cushioning. There's ample room for your fingers thanks to the small diameter body and loads of space behind the brake lever. You'll feel the power and response of SRAM’s DoubleTap shifting as you drop a gear for that grueling climb or ratchet through the 11 speeds in that frantic sprint finish.

One rear derailleur to rule them all. The SRAM Force eTap AXS rear derailleur is designed for both 1x and 2x systems. It capitalizes on X-Range gearing technology for enhanced range and chain management and features larger pulleys for improved durability and efficiency. Strong, smooth, quiet and AXS enabled. - SRAM AXS enabled, allowing easy personalization - Orbit chain management technology keeps the drivetrain quiet and secure - A single rear derailleur for all gearing combinations, including 1x and 2x - Larger X-SYNC pulleys for increased durability and efficiency - NOTE: Does not include eTap battery. Compatible with existing eTap batteries.

Your time on the bike is precious, let Shimano make it even better. Ultegra ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven SERVO-WAVE technology. The Di2 platform untethers the shifters while delivering fast and reliable wireless shifting. BR-R8170 disc brake caliper brings a new level of control to the road cycling world with improved modulation and a quicker initial braking point. Despite its smaller construction, the system is quieter than ever and easier to maintain. - The wireless connection provides a clean cockpit, enhancing the aerodynamic effect and easy maintenance - Wider pad clearance decreases brake noise - Maintenance-friendly bleeding process - Unparalleled ergonomic features, such as raised hood peaks on levers - Brake control is optimized with light and smooth lever action - Enhanced modulation thanks to an expanded braking control area - Compatible with wireless or wired connection

The Campagnolo Chorus Ergopower Brake/Shift system features improved ergonomics that can be tailored to the rider's individual preferences. - Ultra-Shift function allows for multiple shifts in one motion and greater control for racing - Aluminum braking lever features reach adjustment mechanism - Technopolymer Ergopower body Specifications: - Rotor Included: No - Pad Compound: Semi-Metallic - Brake Caliper Mount: Flat Mount - Brake Lever Use: Right - Hydraulic Fluid Type: Mineral Oil - Rear Der/Shifter Compatibility: Campy 12-Speed Chorus/Record/Super Record 2019+ - Drivetrain Speeds: 12 - Adjustable Reach: Yes

Record 12-Speed controls are aesthetically pleasing and functional. The unidirectional carbon design offers riders two different lever-handlebar positions to adapt different size hands, maximizing control. This results in consistent power, stiffness and reliability for when you need it. - Hydraulic disc brake actuation - Vari-Cushion technology offers an ergonomic, comfortable and safe support and grip - The “one lever-one action” feature assigns each lever one function to prevent shifting errors - Ultra-Shift mechanism enables upshifting up to three gears at a time, and downshifting a full five - Disc rotor sold separately Specifications: - Pad Compound: Semi-Metallic - Brake Caliper Mount: Flat Mount - Brake Lever Use: Right - Hydraulic Fluid Type: Mineral Oil - Rear Der/Shifter Compatibility: Campy 12-Speed Chorus/Record/Super Record 2019+ - Drivetrain Speeds: 12 - Adjustable Reach: Yes

Already a legend in its time, the SRAM RED crankset is now available with refreshed graphics to complement the SRAM RED eTap componentry. The SRAM RED crankset features a completely hollow construction all the way to the spider. Its hidden bolt pattern makes better use of carbon fiber to further improve stiffness and shed weight. As always, for seamless, flawless performance and Yaw compatibility, pair this crank with X-GlideR chainrings. - SRAM Road 11-speed compatible - Compatible with SRAM RED eTap components - Exogram technology uses a large, hollow cross section all the way to the spider, minimizing weight while maximizing stiffness - SRAM's stiffest crank ever - Hidden bolt pattern leverages the characteristics of carbon fiber while presenting a sleek appearance - Stiffer X-GlideR chainrings feature thicker construction and advanced shift timing pins and ramps, which are optimized for shifting with the Yaw front derailleur - Arm Material: Carbon - Chainring Material: Machined alloy - Weight: 557 grams (BB30 172.5mm 53x39 BB not included) - Compatibility: SRAM RED & SRAM Force Yaw Front Derailleur, SRAM RED 22 & PC1170 chains - Finish: Carbon - Bottom Bracket Compatibility: BB30, PressFit 30

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

Campagnolo's Record EPS ErgoPower Levers offer superb braking and electronic shifting function. The rear lever's unique design allows for up to ten simultaneous shifts in either direction with the simple hold of a button. Plus, you can easily shift the front chainring flawlessly even under load. You'll also love the comfortable, ergonomic design that makes the levers and hoods fit like a glove. Plus, Campagnolo's advanced carbon construction makes these levers just as visually incredible as they are light.

Comfort plays a big part in speed—that's why SRAM designed the Force 22 ErgoDynamic Shifters with an ErgoFit textured body and refined hood shape that improve grip and provide a smooth transition to the bar. These 2x11-speed shifters are crafted with carbon and magnesium for an incredibly low weight you'll notice as soon as you wrap your hands around them. Individual reach adjustment of the ErgoBlade brake and shift levers put the controls exactly where you want them. And, with an understated black finish, the Force 22 Shifters are a great match for any machine.

With the fast and accurate Di2 shifting technology, the Shimano 12-speed Ultegra RD-R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes. - Compact design includes an integrated wireless unit, charger, switch - Wider range capacity - Max. low sprocket 34t - LED status indicator - Battery indicator, pairing, adjust mode etc.

Full carbon fiber road handlebar with thoughtful ergonomics highlighted by a short reach shallow drop geometry and full Di2 compatibility. Who It's For Road riders with a preference for compact geometry, light weight, and refined electronic groupset integration. Why We Made It Because we understand that your ride experience can be established by the comfort and control achieved with a handlebar, we take handlebar design seriously. The ENVE Compact Road Handlebar is available in both a traditional and compact geometry and a variety of width options to meet the fitment needs of most cyclists. Ergonomics of the Road Bars are thoughtful and allow for a wide range of adjustability from tilt to brake/shift lever placement. To round off the finish, the ENVE Compact Road Handlebar can be routed externally for mechanical groupsets but is also drilled for internal electronic routing for modern electronic drivetrains including compatibility with Shimano RS-EW910 bar end plug junction box installations. The Compact Road Handlebar includes ENVE's Integrated Bar End Plugs.

The SES AR Handlebar reveals our vision for the future of road handlebar shaping and design. Purpose-built for the modern road rider, the SES AR handlebar features compound flared drops for confident handling, aerodynamic shaping with internal/external routing options for clean airflow and aesthetics, and a carbon laminate that has been tuned for responsive handling without sacrificing comfort. - Application: Road Race, All-Road, Gravel, Cyclocross - Sizes: 38cm, 40cm, 42cm, 44cm, 46cm - Weights: 243g, 245g, 248g, 262g, 280g - Full Integrated Internal or External Routing - Lifetime Incident Protection and 5 Year Factory Warranty

The workhorse of X-Range gearing, the SRAM RED XG-1290 cassette progresses fluidly and quickly through a wider range of gears. It's specifically designed for wireless electronic shifting and the one-piece design offers you the best in weight savings. - Updated design for smoother and faster shifting - More gradual gear progression between cogs—at least five one-tooth jumps—while still offering a wider range - 10-tooth start helps provide a wider gearing range - Designed to work with an XDR driver body - One-piece machined steel X-Dome design for weight savings - All Zipp wheels starting from 2012 are XDR ready - Version: D1 - 10-26T: 10, 11, 12, 13, 14, 15, 16, 17, 19, 21, 23, 26 - 10-28T: 10, 11, 12, 13, 14, 15, 16, 17, 19, 21, 24, 28 - 10-33T: 10, 11, 12, 13, 14, 15, 17, 19, 21, 24, 28, 33