700c, 27-Inch & 650c

- Versatile aero wheelset for the modern road bike with tubeless and hookless rim profile - Optimized tire bed for easy tire installation - Wide 23mm rim profile creates a better tire interface to be fast on or off the road - New ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement - Ships with 12mm front and rear end caps - Center locking rotor interface. Lockring is included with the wheels - 1470g - Lifetime warranty

- Versatile aero wheelset for the modern road bike with tubeless and hookless rim profile - Optimized tire bed for easy tire installation - Wide 23mm rim profile creates a better tire interface to be fast on or off the road - New ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement - Ships with 12mm front and rear end caps - Center locking rotor interface. Lockring is included with the wheels - 1470g - Lifetime warranty

The SLR 1 42 WheelSystems are efficient, lightweight, all-around, carbon road wheels that bring premium-level performance to all riders. Featuring hookless rim design and optimized carbon layup to ensure a robust yet lightweight structure, contemporary wider inner width, low friction hubs offering low rolling resistance, and Dynamic Balanced Lacing (DBL) technology to maintain maximum power efficiency, the SLR 1 42 and SLR 1 42 Disc bring outstanding performance at no compromise. - Hookless rim design enhances overall durability and offers a wider inner rim width without adding weight - Optimized carbon layup features high tensile strength carbon fiber placed at the most crucial points to provide stiff, compliant, and lightweight wheels - Low friction hub with precision machined internals eliminates excessive bearing load, reducing bearing friction, lowering rolling resistance, and minimizing power loss - Dynamic Balanced Lacing (DBL) ensures spokes are set for optimal tension when pedaling, resulting in enhanced durability and transmission efficiency - The enlarged DBL hub flange increases spoke bracing angles, boosting overall torsional, transmissional, and lateral stiffness for better power transfer - Giant's proprietary High Glass Transition Temperature (Tg) resin enhances the rim's overall durability and braking performance - 42mm-deep all-round rim profile with an updated inner width offers better support for today's higher volume road tires

Zipp's 353 NSW Tubeless Disc-brake wheel is the pinnacle of our pursuit of versatility and speed. This wheel fuses Zipp's two most advanced approaches, Sawtooth rim profile and TSE, for an all-encompassing approach to performance. With its undulating 45mm-deep rim shape, the 353 NSW provides speed on every terrain with best-in-class aerodynamic efficiency and crosswind stability. The 353 NSW is Zipp's lightest tubeless wheel yet, making it a fast-puncher ready to fight its way into the breakaway. Zipp's use of hookless (straight side) rims in the 353 NSW is integral to achieving our mission of Making You Faster. With hookless, the transition between the tire and the rim is more seamless and aero. Zipp's hookless rims have more efficient resin distribution, which means lighter wheels. They also are highly durable. Zipp's 353 NSW's Sawtooth rim shape with Hyperfoils optimizes aerodynamic efficiency and crosswind stability. The Sawtooth design also allows the rim to be structurally strong but light. That will help you snap out of corners and maintain that speed no matter the terrain, especially in the steep, punchy stuff. The 353 NSW utilizes Zipp's Total System Efficiency, or TSE, approach to wheel design: overcoming specific barriers to speed: wind resistance, gravity, rolling resistance, and vibration losses. The wheel's 25mm internal width is ideal for running wider tubeless tires at reduced air pressure for a more efficient ride. At the center of the 353 NSW is the Cognition V2 Hubset, re-engineered with an updated Axial Clutch V2 mechanism for quicker engagement and lower friction, as well as improved durability. - Versatile endurance wheel for the modern road bike with tubeless and hookless rim profile - Our lightest tubeless wheel yet, making it a fast-puncher ready to fight - Optimized tire bed for easy tire installation - TSE for greater efficiency and reduced rolling resistance - Sawtooth rim with Hyperfoil nodes and HexFin ABLC dimple pattern for top aero and crosswind-stable performance with an undulating rim depth - Cognition V2 hubset rolls efficiently whether you are pedaling or coasting. Its Axial ClutchV2 technology reduces drag and lowers friction - Ships with 12mm end caps - Center Lock rotor interface. Lockring is included - Zipp graphics applied using Zipp's ImPress direct-print technology - Lifetime warranty

Zipp's 353 NSW Tubeless Disc-brake wheel is the pinnacle of our pursuit of versatility and speed. This wheel fuses Zipp's two most advanced approaches, Sawtooth rim profile and TSE, for an all-encompassing approach to performance. With its undulating 45mm-deep rim shape, the 353 NSW provides speed on every terrain with best-in-class aerodynamic efficiency and crosswind stability. The 353 NSW is Zipp's lightest tubeless wheelset yet, making it a fast-puncher ready to fight its way into the breakaway. Zipp's use of a hookless (straight side) rim in the 353 NSW is integral to achieving our mission of Making You Faster. With hookless, the transition between the tire and the rim is more seamless and aero. Zipp's hookless rims have more efficient resin distribution, which means lighter wheels. They also are highly durable. Zipp's 353 NSW's Sawtooth rim shape with Hyperfoils optimizes aerodynamic efficiency and crosswind stability. The Sawtooth design also allows the rim to be structurally strong but light. That will help you snap out of corners and maintain that speed no matter the terrain, especially in the steep, punchy stuff. The 353 NSW utilizes Zipp's Total System Efficiency, or TSE, approach to wheel design: overcoming specific barriers to speed: wind resistance, gravity, rolling resistance, and vibration losses. The wheel's 25mm internal width is ideal for running wider tubeless tires at reduced air pressure for a more efficient ride. At the center of the 353 NSW is the Cognition V2 Hubset, re-engineered with an updated Axial Clutch V2 mechanism for quicker engagement and lower friction, as well as improved durability. - Versatile endurance wheel for the modern road bike with tubeless and hookless rim profile - Our lightest tubeless wheel yet, making it a fast-puncher ready to fight - Optimized tire bed for easy tire installation - TSE for greater efficiency and reduced rolling resistance - Sawtooth rim with Hyperfoil nodes and HexFin ABLC dimple pattern for top aero and crosswind-stable performance with an undulating rim depth - Cognition V2 hubset rolls efficiently whether you are pedaling or coasting. Its Axial ClutchV2 technology reduces drag and lowers friction - Ships with 12mm end caps - Center Lock rotor interface. Lockring is included - Zipp graphics applied using Zipp's ImPress direct-print technology - Lifetime warranty

The EC70 AX wheels connect EC70 carbon rims to our proven X5CL hub with 28 3x double butted Sapim straight pull spokes. End cap and axle components are available for all major industry standards. Wide, 24mm internal rims are optimized for gravel tires 35mm and larger, giving you a more confident tire stance for control on the ground during your expansive adventure rides, single track forays and unrelenting gravel races. Our Easton Overland team and SDG Muscle Monster team riders have put these wheels to the test, racing prototypes at DK200, with Amity Rockwell taking the DK Queen title and Amanda Nauman finishing 6th, while at Lost and Found 2019 Michael Van Den Ham came in 4th and Craig Richey took 6th.

Various road surfaces or weather conditions cannot deter you: the endurance-specific ERC 1100 wheels enable you to ride fast and stable. With AERO+ optimized rim profiles, wider and more comfortable tires are better supported. Ultra low-friction SINC Ceramic bearings inside DICUT Aero hubs and the latest generation of DT Swiss aero spokes are technical highlights inside the wheels. The proven Ratchet EXP freehub system with its 36T Ratchets transfers each pedal stroke precisely into forward propulsion and speed from the start right to the finish of your ride. - Aero-optimized wheels with Carbon rim supports your ride on different road profiles. Whether you enjoy an easier longer climb or the following smooth descend, riding will feel almost effortless

Nowadays, road riding is much more than riding aon a road. Gravel, rough roads, fenders, lights and racks have broadened the horizon and ER 1400 is the premium alloy choice. It's 20mm, super light and resilient rim and 240s based hub is just what you need when rides lead into the unknown. - 240s based Spline hub - Straight-pull hub and spokes are laced 2-cross - Includes tubeless ready tape and tubeless valve

The design of the rim enables maximum aerodynamic penetration, and at certain angles, the wind can actually become a valuable ally to the rider. Aerodynamic hubs and ceramic USB cup-and-cone bearing system in the hubs themselves: every design choice has been made with a view to optimizing performance. - USB cup-and-cone bearing system guarantees smoothness in the ceramic bearings - The 2-Way Fit profile allows you to mount either a clincher or a tubeless tire - 19mm inner width enables you to mount 23, 25 and 28mm tires Specifications: - Hub/Brake Compatibility: Rim Brake - ISO Diameter: 622 / road / 29" - Tire Type: Tubeless Ready Clincher

- Zipp’s ultimate road racing wheelset. Aerodynamically efficient and stable in all wind conditions. - Optimized for 28mm tubeless tires at lower pressure for reduced rolling resistance and vibration damping. - Total System Efficiency (TSE) approach addresses wind resistance, gravity, rolling resistance, and vibration losses. - More than 400 grams lighter than its predecessor - Hookless rims for a more seamless and aerodynamic transition between tire and the rim - Cognition V2 Hubset with an updated Axial Clutch V2 mechanism for quicker engagement, lower friction, and improved durability. - Center locking rotor interface. Lockring is included with the wheels - 1360g - Lifetime warranty

The pinnacle of aluminum road wheels. The ceramic OXIC surface coating brings brake performance to rim brakes like it has never be seen before. The rims are wide, asymmetric, and lightweight, making for an outstanding stiffness to weight ratio. If set up tubeless, supreme comfort and grip are added to the athletic character. - OXiC rim surface technology for improved braking performance and wear - Tubeless Ready rim compatible with standard clincher tires - 240 hub and ProLock Squorx ProHead spokes built with radial lacing - Factory installed tubeless-ready tape - Includes titanium RWS skewer, tubeless valve and Swissstop BXP blue brake pads

Excellent aerodynamics and safe steering behavior for a decisive competitive advantage; the ARC 1100 DiCut wheels are made to go flat out fast. Drag and steering movements are reduced thanks to the AERO+ rim that's been aerodynamically optimized by Swiss Slide- these high-end quality wheels are ready to win.

CZR i23 gravel wheels are designed to minimize weight while blending stiffness and compliance to maximize power transfer and increase comfort. CZR i23 rims feature a 24mm section depth to maximize energy transfer, reduce weight, improve vertical compliance, and reduce rider fatigue while a hooked bead also improves tire retention with high pressure adventure road and gravel tires. CZR I23 CARBON RIMS Reinforced spoke beds improve overall wheel strength and durability while also minimizing weight in areas where less strength, and therefore material, is needed. CZR i23 rims feature 3mm of asymmetrical spoke offset and a 24mm section depth to improve radial stiffness and maximize energy transfer without being affected by crosswinds like other wheels with deeper profiles. SOLID STRIP & TCS TAPE Durable nylon strip that lies between the rim and tubeless tape to prevent tubeless tape from pushing into the spoke holes and ensures a smooth interface between the tire and rim. The smooth surface makes it easier to mount a tire by preventing air from escaping around the bead at each indent during inflation. Solid Strip also protects the airtight system from puncture in the case of a broken spoke. 2-CROSS OR 3-CROSS LACING CZR i23 gravel wheels with 24 spokes feature a 2-cross lacing pattern to increase radial stiffness and decrease weight. CZR i23 wheels with 28 spokes feature a 3-cross pattern to increase durability while still providing ample radial stiffness due to the additional spokes. FREQUENCY HUBS The world's best carbon rims deserved to be paired with high-quality hubs that further improve the performance of a lightweight, dependable carbon wheelset. Frequency hubs feature a low-drag, 6-pawl design that alternates contact between two sets of 3-pawl groupings to provide a responsive 5 degrees of freehub engagement. Frequency hubs laced to CZR i23 wheels feature lightweight pawl springs that minimize drag and therefore improve efficiency for drop-bar usage. AERODYNAMIC WING SPOKES Pillar racing spokes that are cold-forged into an aerodynamic wing shape that reduces drag at the trailing end of each spoke. As a result, wing spokes improve overall efficiency while still retaining the gram-conscious weights of traditional bladed spokes. SAPIM ALLOY NIPPLES All CZR i23 wheels feature time-tested Sapim alloy nipples to further reduce overall wheel weight while still exceeding the durability requirements of gravel. COUNTLESS CONFIGURATIONS CZR i23 wheels are available in a 24-spoke option for riders looking to minimize weight and increase compliance, while the 28-spoke versions are best for heavier or more aggressive riders who prioritize stiffness and durability. All CZR i23 wheels are available with Centerlock or 6-bolt rotor mounts. CZR i23 front wheels use a 12x100mm Frequency hub, but 15mm end caps are also available separately on our Replacement Hub Parts page. WHY CHOOSE CZR I23? Fast and light CZR i23 gravel wheels were designed to minimize weight and maximize compliance on rough gravel roads. With front-wheel weights starting at 620g and rears at 775g, they also deliver the greatest strength-to-weight ratio of any gravel wheelset on the market. We even stand behind them with our Ride With Confidence Guarantee for those few-and-far-between crash replacement cases. Read below for more info.

CRC 1400 Spline wheels are ready to conquer the harshest conditions with convenience. Never mind if the conditions are windy, muddy or rainy, the CRC 1400 Spline is ready to conquer them all. The aero-optimized rim supports your high speeds on descents and on the hunt for your competitors, no matter where the wind blows. The rim profile is tubeless ready, allowing you to take advantage of the technology and simply and conveniently change the tires according to the prevailing conditions of the track. This will ensure you always find the sweet spot between traction and rolling resistance.

Best seller. You'll be hard-pressed to find a better wheel anywhere near these prices.

The best price on the market for a wheel meant to be ridden. Single-wall rims and hubs that come out of the box round and true.

The best price on the market for a wheel meant to be ridden. Single-wall rims and hubs that come out of the box round and true.

Genuine replacement parts Genuine Trek replacement wheels. Complete wheels for easy replacement. - Rim tape included - Tires not included - Spoke count: 36

Where in the world can you ride these brutes? Anywhere you damn well please. Road light, off-road tough, smooth as butter, Terra CLX EVO wheels bring leading-edge performance to the diverse needs of aggressive gravel rides. Available in 700c and 650B with 30mm internal-width rims to deliver optimal handling with up to 2.1" tires, so you’re the master of any terrain. Durability delivered through unsurpassed toughness-to-weight, thanks to leading composite technology rims. Lifetime warranty and no-fault crash replacement. - Rim Type: Carbon Clincher, tubeless-first - Rim Material: Advanced Carbon Composite - Rim Width (internal): 30mm - Rim Depth: 25.3mm - Front Spoke Pattern: Radial/Two-cross (2:1) - Rear Spoke Pattern: One-cross/Two-cross (2:1) - Spoke Count: Front/Rear: 24/24 - Spoke Type: DT Swiss Aerolite T-head - Nipple Type: DT Swiss Pro Lock Alloy hexagonal - Spoke Length (front): 700c Right/Left: 283mm/279mm - Spoke Length (rear): 700c Drive-Side/Non-Drive: 278mm/284mm - Front Hub: Roval AFD1, Center Lock, 12mm thru-axle end cap - Rear Hub: Roval AFD2, Center Lock, DT Swiss EXP internals, Shimano or SRAM XDR, 142x12mm thru-axle end cap - Assembly Method: Handbuilt - Extras: Roval padded wheelbag, Roval tubeless rim tape and valves (pre-installed) - Weight (with rim tape and tubeless valves): 700c: 1357g

Campagnolo’s Bora Ultra WTO 45 has the perfect balance of speed, agility and stability, making it the best choice for all-round riders. The rim’s versatile design takes account of real-world riding conditions, not just those created in a wind tunnel, and the result is the most efficient drag-reducing rim shape available. - Lightweight, thanks to its Hand Made Ultra-Light Carbon (H.U.L.C.) construction - Slimmer Aero Elliptical spokes and hidden nipples help slice through the air - Hub body is securely bonded to a light aluminium hub flange - Integrated radial spoke seats ensure perfect alignment - A uniquely stunning C-LUX finish and new, subtle Bora Ultra graphics ensure the wheels have the show to match their go - Ceramic bearings spin effortlessly within the front aerodynamic carbon body of the disc hub - The 2-Way Fit rims are ready for immediate tubeless use without rim tape, designed for tire widths from 23mm - Aerodynamically optimised for 25mm tires - Weight: 660 g

Once you have experienced the speedy sensation of aero optimization, you'll never get enough. The AR 1600 Spline 30 gives you that exact thrill, thanks to the same know-how that went into the development of DT's high-end carbon Aero wheels ridden by the pros. The aerodynamic advantage is further enhanced by the addition of aero spokes and hidden nipples. The 350 hub with its Ratchet System efficiently transmits the power of each pedal stroke to help you in the acceleration phase. - Aerodynamically optimized rim shape effectively reduces drag and allows you to hold higher speeds with ease - Aluminum construction, sleeved rim joint, hooked bead, tubeless ready rim - 350 Straightpull hub with 36T Ratchet SL System - DT Aero Comp II, straightpull spokes - ProLock hidden spoke nipples help to reduce air drag around the rim - Includes DT Swiss tubeless ready tape and valves

The GRC 1400 DICUT wheels are ready for the vibrations and obstacles of a gravel tour, so you can leave not just the road, but your shadow and inhibitions behind as well. With two distinctive rim heights available, riders can harness the reliability to smoothly ride over crisp champagne-like gravel segments with speed, or confidently tackle the on-the-rocks unpredictability of unbeaten trails. 50mm height rims are ideal for aerodynamic optimization, while the 30mm high rim provides the agility needed on long adventures, unhooking you from any limitations. - Built using a state-of-the-art carbon manufacturing process, resulting in lightweight carbon rims straight out of the mold, without the need for a finishing coat - Ideal performance to weight ratio using the 240 DICUT hub and DT Aerocomp spokes - Intended use = Gravel/Off-road - Includes tubeless valve, tape and wheel bag - Tubeless ready, 24mm wide carbon rim with 30mm high profile rim

Experience joy at new heights with the P 1800 road cycling wheel. From conquering local hills to exploring alpine passes, its developed for all altitudes. With the reliable Ratchet LN technology, you will enjoy seamless power transfer on even the steepest climbs. Hand-built for even spoke tension, you can rely on these wheels for the longest descents. Enhance your riding experience with style and comfort. - Aluminum, sleeved rim joint, hooked bead, tubeless ready with 23mm height - DT Swiss 370 Straightpull hubs - Includes DT Swiss tubeless ready tape (mounted) and DT Swiss alloy tubeless valves

Get ready for long, exciting rides with the E 1800 wheels. The wide rim provides enhanced comfort so you can tackle those miles with ease. Feel the thrill of speed as you glide effortlessly along the road, with every pedal stroke transferred to the road thanks to the reliable Ratchet system. The E 1800 is designed to give you the perfect blend of reliability, comfort, and fun to make your rides truly memorable. - Aluminum, sleeved rim joint, hooked bead, tubeless ready - DT Swiss 370 Straightpull hubs with Center-Lock disc mount - Includes DT Swiss tubeless ready tape (mounted) and DT Swiss alloy tubeless valves - 18T Ratchet LN System

Experience unmatched durability and reliability on your rides with ER 1400 premium wheels. Its welded aluminum rim made out of a premium alloy, provides an ideal blend of strength and lightness that supports wide tires at low tire pressure for exceptional grip on challenging terrain. The DiCut hub with its patented two-in-one spoke holes guarantees a permanent aerodynamic advantage and encloses the Ratchet EXP system for seamless acceleration and reduced weight. It all adds up to a smooth ride so you can make your miles look bigger than ever. - Aluminum, sleeved rim joint, hooked bead, tubeless ready - DT Swiss 240 Dicut hubs with Center-Lock disc mount - Includes DT Swiss tubeless ready tape (mounted) and DT Swiss alloy tubeless valves

The GRC 1100 DICUT gravel wheels are designed for multiple situations, with two rim height options available to meet your needs. Whether you’re on the hunt for a win in a fast-paced gravel race with the 50mm high rim, or looking to unhook yourself from your limitations on an extreme off-road adventure with the 30mm high rim, these wheels are sure to catch the eye, while saving weight with improved aero-optimization. - Built using a state-of-the-art carbon manufacturing process, resulting in lightweight carbon rims straight out of the mold, without the need for a finishing coat - Assembled with the lightweight 180 DICUT hub with ceramic bearings and DT Aerolite spokes, providing fast acceleration and low rolling resistance - Intended use = Gravel/Off-road - Ratchet EXP freehub drive system - Includes tubeless valve, tape and wheel bag - Tubeless ready, 24mm wide carbon rim with 30mm high profile rim

The GRC 1100 DICUT gravel wheels are designed for multiple situations, with two rim height options available to meet your needs. Whether you’re on the hunt for a win in a fast-paced gravel race with the 50mm high rim, or looking to unhook yourself from your limitations on an extreme off-road adventure with the 30mm high rim, these wheels are sure to catch the eye, while saving weight with improved aero-optimization. - Built using a state-of-the-art carbon manufacturing process, resulting in lightweight carbon rims straight out of the mold, without the need for a finishing coat - Assembled with the lightweight 180 DICUT hub with ceramic bearings and DT Aerolite spokes, providing fast acceleration and low rolling resistance - Intended use = Gravel/Off-road - Includes tubeless valve, tape and wheel bag - Tubeless ready, 24mm wide carbon rim with 30mm high profile rim

The SES 2.3 is purpose-built for the mountains. Ultra-light, respectfully aerodynamic, and optimized for tubeless tires, the SES 2.3 raises the bar for performance through hilly and mountainous terrain. There’s no better option for the uncompromising climber who values performance up and down the mountain than the new SES 2.3. At sub-1200 grams, they’re in a league of their own and deliver a real-world advantage in hilly terrain through their lightweight design and confidence-inspiring handling. - Full carbon rim features continuously running fibers throughout the rim, tapering laminates, and removing excess material, the SES 2.3 achieves an impressive feat in weight reduction and composites engineering. Additionally, layering fibers in specific orientations achieves zone-specific performance requirements like impact toughness, stiffness, and tire retention - Wide hookless bead deign greatly reduces the likelihood of pinch-flatting by providing a blunt surface upon which to bottom out the tire, dissipating energy across a larger surface area and preventing tire damage - Premium Straight Pull hubs utilize equal spoke lengths with an anti-twist spoke design for improved wheel strength and performance, a lightweight alloy hubshell, stainless steel sealed bearings and easy to service axle system - Molded Spoke Hole Technology offers a variety of benefits that ultimately result in a more durable and reliable carbon fiber rim and wheel - 28mm front depth and 21mm internal rim width supports minimum tire sizes of 25mm. For use with Tubeless tires only - Rims are pre-taped and tubeless ready

Striking the ultimate balance between weight savings, stability, aerodynamics, and rolling efficiency, the SES 6.7 defines Real-World Fast and raises the bar for modern aero wheel performance. Grams of rim, versus grams of drag, make the SES 6.7 the outright fastest wheel on the road. - Full carbon rim is optimized to further improve tubeless tire and rim reliability with a hookless bead design that allows for the precise rim dimensions required to achieve the best tubeless performance - Wide hookless bead deign greatly reduces the likelihood of pinch-flatting by providing a blunt surface upon which to bottom out the tire, dissipating energy across a larger surface area and preventing tire damage - Innerdrive mechanism features oversized 42mm steel ratchets positioned inboard and over the bearings, reducing stress on the axle and bearings while ensuring positive and reliable engagement - Interchangeable ratchets (sold separately) allow riders to easily tune their rides for their personal performance needs. Whether it be maximizing efficiency, response, or reliability - Premium Straight Pull hubs utilize equal spoke lengths with an anti-twist spoke design for improved wheel strength and performance, a lightweight alloy hubshell, stainless steel sealed bearings and easy to service axle system - Molded Spoke Hole Technology offers a variety of benefits that ultimately result in a more durable and reliable carbon fiber rim and wheel - 67mm rear depth and 23mm internal rim width supports minimum tire sizes of 25mm, with an Aero Optimized design around 27 - 28mm tires. For use with Tubeless tires only - Rims are pre-taped and tubeless ready - Due to the refined and lightweight construction of the SES 6.7 and its sidewalls, this wheel is not suitable for off-road/gravel applications

The 45 Foundation is a modern carbon road wheel in every way. Riders with inclinations toward racing and hard solo efforts or those looking for the road lost and forgotten will find the dynamic properties the modern road rider needs. Built upon over a decade of carbon wheel crafting experience, the 45 brings Enve's knowledge and technology to the masses. Blended aero properties, tubeless compatibility, and pinch flat protection for the rider looking to test the waters on carbon wheel performance. - Full carbon rim is optimized to further improve tubeless tire and rim reliability with a hookless bead design that allows for the precise rim dimensions required to achieve the best tubeless performance - Wide hookless bead deign greatly reduces the likelihood of pinch-flatting by providing a blunt surface upon which to bottom out the tire, dissipating energy across a larger surface area and preventing tire damage - Innerdrive mechanism features oversized 42mm steel ratchets positioned inboard and over the bearings, reducing stress on the axle and bearings while ensuring positive and reliable engagement - Interchangeable ratchets (sold separately) allow riders to easily tune their rides for their personal performance needs. Whether it be maximizing efficiency, response, or reliability - Molded Spoke Hole Technology offers a variety of benefits that ultimately result in a more durable and reliable carbon fiber rim and wheel - 45mm depth and 21mm internal rim width, Aero Optimized design to support 25 - 28mm tires. For use with Tubeless tires only