700c, 27-Inch & 650c

Performance Upgrade Made Easy The C38 brings carbon fiber high performance to the real world. It's a versatile all-rounder equally at home crushing gravel washboards and summiting alpine passes. Optimized for use with modern wide tires, providing the right amount of sidewall support to facilitate surefooted handling in all conditions, the C38 wheelset is a great handling, lively climbing, robust all-road performer that also aerodynamically outperforms many deeper, aero-specific rims that cost twice as much. Carbon wheels are a true performance upgrade to any bike, but too often the price tag puts them out of reach. The Rapide C38 shatters that barrier and brings a class-leading Roval carbon rim and DT Swiss reliability together to provide riders with the best performance carbon wheel per dollar.

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

Slice through the wind on Roval's Rapide CLX 40 Wheelset. They feature 40mm-tall aero carbon rims, and DT Swiss Revolution straight-pull spokes laced to sealed ceramic cartridge bearings Roval hubs. The rear hub is adorned with DT Swiss's renowned 240 star ratchet internals. The wide, carbon rim provides a round tire profile and greater lateral stiffness for precise handling. This feathery, 1240-gram wheelset spins up with ease so you can bolt out of corners and breeze up the climbs. With your favorite tubular tires, these wheels roll as smooth as silk.

Zipp's 101 XPLR is a purpose-built wheel for gravel. Thanks to MOTO Technology, this wheel arms gravel cyclists with more control and durability over harsh terrain, providing a smooth ride quality that helps reduce fatigue. That means a more comfortable ride. The 101 XPLR—short for explore—is purpose-built for riders searching for adventure beyond the norm. Think of it as a magic carpet ride over primitive roads, especially with large tubeless tires at lower tire pressures. This wheel is ideal for gravel racing, adventure, or any long day in the saddle. Based on Zipp's MOTO Technology, the 101 XPRL's single-wall rim construction provides excellent compliance and vibration damping. Less fatigue, allows you to ride longer and faster. The 101 XPLR features the ZR1 hubset for better seal design for improved durability and quicker response with 66 points of engagement. With 101 XPLR, victory is in the pursuit of adventure. - All-day comfort and compliant ride - Available in 700c or 650b - 27mm wide internal profile - Reduced chance of pinch flatting - More traction in rough corners - Smoother ride in rocky terrain - Ability to run lower tire pressure - Less fatigue, which allows you to ride longer and faster - Frustration-free tire installation - ZR1 hubset for better seal design for improved durability and quicker response with 66 points of engagement - Lifetime Warranty

The G23 is an original purpose-built gravel race wheelset, made for high-speed, big elevation, off road pursuits. The G23 exceeds the performance and ride quality demands of serious mixed surface cyclists. Armed against pinch flats, with a tough, relentless but refined character, it is the king of the road, path and trail. Riders looking for maximum versatility, speed and efficiency will gravitate towards the G23 paired with a 40mm tire. - Full carbon rim features wide hookless beads that provide a 60% improvement in pinch flat resistance, while maintaining the ability to run lower tire pressures and improve traction and rolling resistance - 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 - 23mm internal rim width supports 35 - 45mm tires

- 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

- 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

Developed and tested using Turbulent Aero technology, the 42/49 is designed for everything you do, providing all-day capability with aerodynamic sensibilities. Raced at events as varied as the Paris-Roubaix and the Giro D’Italia, the 42/49 wheels have a lifetime warranty supported by a no-fault crash replacement. And in keeping with Reserve workmanlike ways, you’ll find external nipples, standard spokes, no tire limitations with a semi-hooked design and no rider weight limits. - Wind tunnel tested using Computational Fluid Dynamics (CFD), with the goal of maximizing aerodynamics while enhancing stability - Optimized carbon fiber rim construction allows Reserve to define the exact fiber orientation for each rim model, to maximize stiffness and strength without sacrificing weight - Built with DT Swiss Hubs

The Bora WTO 60 is at the top of this category, with a profile designed for maximum high-speed aerodynamics at a significantly lower weight compared to the previous model and with a structure that provides an unprecedented sense of control. Feel weightless, thanks to the Handmade Ultra-Light Carbon (H.U.L.C.) rims and C-LUX finish; this combination minimizes weight by over 100 grams across all profile heights compared to the previous model. Unleash powerful sprints and save your power while drafting. The aerodynamically optimized rim profile, plus Mo-Mag technology, gives you reduced drag power across-the-board. The unique ‘drop-shape’ rim profile takes inspiration from the most aerodynamic shape in nature to deliver exceptional performance and ride comfort. - 60mm deep, carbon rim construction with C-LUX finish, 2-Way Fit system and 23mm internal width can accommodate wider tires, including tubeless - Monolithic disc brake hubs with USB bearings and 24 aero elliptical, straight-pull steel spokes - Possess pure control with G3 lacing, designed to ensure maximum stiffness and cornering precision – and stunning, premium aesthetics - Recommended tire size: 700c, 28 - 35mm - Includes Tubeless valve with bushing, and tire levers

Named after the Easterly wind of the Mediterranean, Levante brings a host of proven Campagnolo technologies to the gravel scene and is designed for off-road adventures and racing alike. The premium carbon-fiber wheelset adopts a series of subtle styling cues that complement Campagnolo’s groundbreaking 13-speed Ekar gravel groupset, completing an understated yet head-turning aesthetic. Beneath the beauty lies a series of in-house technological innovations designed to enable fast, fun and controlled gravel riding, with a strong focus on handling and ride feel. Underpinning it all is a considered engineering approach that makes no compromise on durability and serviceability, making the wheelset an ideal choice for off-the-beaten track adventures. - Confidence-inspiring ride feel without undue harshness and an overall wheelset weight of just 1485g with no compromise on strength - Campagnolo Luxury (C-LUX) finish not only looks stunning it ensures the safest possible seating of tubeless tires and reduces the risk of abrasions to the bead - Stiff for climbing, light for handling and compliant for descending, Levante benefits from Campagnolo’s Hand Made Ultra-Light Carbon (H.U.L.C) - The wheelset’s Mini-Hook has been designed specifically for this rim and the slight hook provides a perfect match between the tire – no matter the brand – and the rim - Gravel dedicated wheelset from Campagnolo – ASTM 2 validated - 1485g wheelset weight - 30mm profile , 25mm internal channel, 30.6mm external profile - Laser-etched graphics on rim & hub - Asymmetric carbon fiber rim with Mini-Hook - H.U.L.C. UD carbon fiber, 2-Way Fit rim, C-LUX finish - Aluminum hub, cup & cone adjustable bearings - 24 spokes, 12+12 double butted, aluminum external self lock nipples - Tire compatibility: from 38 to 76 mm

Zonda GT wheels are intended for maximum all-road versatility: ideal either for wider rough terrain tires or narrower road solutions. The Zonda GT is an optimum combination of the best Campagnolo technologies that offers maximum choice in the selection of tires to use with it, from gravel to road. The iconic G3 spoke pattern and amazing anodized finish give the Zonda GT aluminum wheel its refined looks and clearly identify the wheel as a Campagnolo product. - 29.5mm deep, black anodized aluminum rim with matt finish, welded join with milling, 2-Way Fit system with 23mm internal width to accommodate clincher and tubeless tires - Black anodized aluminum disc brake hub with steel bearings - 24 spokes with circular cross-section and G3 spoke pattern, bladed to 1.6 mm - Mo-Mag system and self-locking aluminum nipples - RDB - Rim Dynamic Balance keeps the weight of the valve balanced with the same weight on the diametrically opposite side

Some of Tom's favorite experiences have been while pedaling his tandem all over the world with his wife, Martha. When he designed the new Outback TandM Break-Away, he wanted a wheelset that could withstand the rigors of riding tandems along varying surfaces. The result is the new Comp Zeta TandM wheelset. The Comp Zeta TandM wheels build upon all the advantages of the original Comp Zeta Disc wheels but include some tandem-friendly features. The quick-release disc hubs measure 100mm wide for the front and 145 in the back and are laced with beefier spokes and brass nipples to 36-hole Zeta tubeless-ready rims. Designed specifically for the Ritchey Outback TandM Break-Away frameset, the unique Comp Zeta TandM wheelset is strong, reliable, and integrates beautifully with the frameset for many miles of happy tandeming. - Tubeless-ready 6061 Alloy rim - Rim depth: 23.4mm - Outer rim width: 24.4 mm - Inner rim width: 19.5mm - OCR 3mm offset rims for reduced dish and increased strength - Hubs: forged disc hubs and sealed bearings - Freehub: steel—Shimano 10/11-sp - Axles: quick release front and rear (100mm front / 145mm rear) - Disc mount: 6-bolt - DT Swiss Champion 2.0—DT Swiss brass nipples (36 front & rear) - Lacing: 3x - Weight: 2077g/set (959g—front / 1118g—rear)

While DT's Hybrid Endurance wheels are made to deliver maximum speed on tarmac, the Hybrid Gravel wheels will deliver maximum fun on gravel roads. The HGC 1400 Spline is the exclusive answer for all high-end E-gravel bikes that set the benchmark in a new cycling segment. With a select mix of high-end E-specific components, this wheel has the pedigree to be the uncontested King of E-gravel. - 2 cross spoke pattern, DT AeroComp Hybrid straight pull spokes, DT Pro Lock hidden aluminum spoke nipples - 30mm high profile rim

WTB Scraper rims and Boost hubs provide tubeless technology for the plus-tire market. - Professional tubeless tape installation included

DT Swiss has engineered the ultimate aerodynamic combination of wheel and tire interface in collaboration with Continental, with a joint tire: the Aero 111 Wheel and tire combinations pre-chosen and designed to be as aerodynamically efficient as possible Tire Features: - Aero 111 tires feature 48 'vortex generators' which greatly reduce drag across the entire wheel system, freeing up additional wattage - Aero wheels have Aero 111 26mm front tire and GP 5000 STR 28mm rear tire (Front & rear sold separately) - Continental`s Black Chili compound and Vectran Puncture-resistant technology Wheel Features: - Latest ARC 1100 Dicut wheels feature a wider rim and improved aerodynamics - Available in several profile heights, the Dicut 55 is reactive and nimble, perfect for road racing - New redesigned rim shape offers lower drag and smoother airflow between tire and rim interface - The ARC1100 features new 180 Dicut Aero hubs as well as new Aero Lite II and Aero Comp II spokes for ultimate performance gains

The ARC 1400 DiCut delivers its full potential whenever your race turns nasty. In gusty wind conditions and on hilly, twisting courses, these wheels give you a decisive advantage, allowing you to stay in the aero position and save valuable power. Small and light riders will love the wheels' superior aero stability, making them a perfect choice for almost every terrain. - AERO+ optimized rims by Swiss Side - Stainless steel bearings

Feel your bike come alive on the open road with the new Alpinist CLX II-the lightest, best-handling clincher wheels we have ever made. Hyper-responsive acceleration, magic in the corners, sublime over rough roads, all elevated with the performance of a tubeless system. There's no room for a single excess gram whether you're chasing summits or ride quality because perfection is only achieved when there is nothing left to take away. It takes more than a lightweight rim to deliver the incredible reactivity and handling of the tubeless Alpinist CLX II. The wheelset is designed as a system with our engineers controlling and testing every part of that system-hubs, rims, spokes, lacing-and developing it hand-in-hand with Specialized Tubeless tires. The result is a 1250-gram tubeless wheelset with otherworldly ride quality. The Alpinist CLX II utilizes a hooked rim (allowing for real-world riding pressures up to 110psi, if that's your thing) for secure tire bead retention and an easier set up and mounting experience than ever before. All in a wheel that almost doubles current industry impact standards while managing to achieve the lightest weight possible. Our all-new LightAF hubs are the spinning heart of the Alpinist CLX II. We carved 50 grams out of the previous Alpinist CLX hub with new low-profile hub bodies and machined rotor mounts. Inside, DT Swiss EXP internals and SINC ceramic bearings deliver silky-smooth efficiency and outstanding durability. - Rim: Alpinist CLX Carbon Clincher, 700c, Disc Brake, Tubeless - Rim Details: 33mm Depth, 27mm External Width, 21mm Internal Width - Hub: Roval Light Hub (LFD13/LF14R) Center Lock, DT Swiss 180 Ratchet EXP 36t internals (10 degs), 100x12mm & 142x12mm, Shim. RD. 11SP HG freehub - Bearing Type: DT Swiss SINC Ceramic Bearings - Spokes: DT Swiss Aerolite T-head, Front: Radial/One-cross (2:1) 21 count, DS: 276mm, NDS: 290mm; Rear: One-cross/Two-cross (2:1), DS: 288mm NDS: 286mm - Nipple: DT Swiss Hex Prolock Al 2.0x14mm - Tire Size: 24mm - 38mm; Max Pressure: 24mm-35mm: Tubeless (110psi) Tubed (130psi), 36mm-38mm: Tubeless (60psi) Tubed (60psi) - Weight: Wheelset 1,265g, Front 670g, Rear 694g (including 15g, tubeless rim tape and tubeless valve) - Assembly Method: Hand built at every step; from rim layup to the last nipple turn. - Extras: Roval Rim Tape, Spare Spoke & Nipple Kit, System Weight Limit: 275lbs/125kg

Feel your bike come alive on the open road with the new Alpinist CLX II-the lightest, best-handling clincher wheels we have ever made. Hyper-responsive acceleration, magic in the corners, sublime over rough roads, all elevated with the performance of a tubeless system. There's no room for a single excess gram whether you're chasing summits or ride quality because perfection is only achieved when there is nothing left to take away. It takes more than a lightweight rim to deliver the incredible reactivity and handling of the tubeless Alpinist CLX II. The wheelset is designed as a system with our engineers controlling and testing every part of that system-hubs, rims, spokes, lacing-and developing it hand-in-hand with Specialized Tubeless tires. The result is a 1250-gram tubeless wheelset with otherworldly ride quality. The Alpinist CLX II utilizes a hooked rim (allowing for real-world riding pressures up to 110psi, if that's your thing) for secure tire bead retention and an easier set up and mounting experience than ever before. All in a wheel that almost doubles current industry impact standards while managing to achieve the lightest weight possible. Our all-new LightAF hubs are the spinning heart of the Alpinist CLX II. We carved 50 grams out of the previous Alpinist CLX hub with new low-profile hub bodies and machined rotor mounts. Inside, DT Swiss EXP internals and SINC ceramic bearings deliver silky-smooth efficiency and outstanding durability. - Rim: Alpinist CLX Carbon Clincher, 700c, Disc Brake, Tubeless - Rim Details: 33mm Depth, 27mm External Width, 21mm Internal Width - Hub: Roval Light Hub (LFD13/LF14R) Center Lock, DT Swiss 180 Ratchet EXP 36t internals (10 degs), 100x12mm & 142x12mm, Shim. RD. 11SP HG freehub - Bearing Type: DT Swiss SINC Ceramic Bearings - Spokes: DT Swiss Aerolite T-head, Front: Radial/One-cross (2:1) 21 count, DS: 276mm, NDS: 290mm; Rear: One-cross/Two-cross (2:1), DS: 288mm NDS: 286mm - Nipple: DT Swiss Hex Prolock Al 2.0x14mm - Tire Size: 24mm - 38mm; Max Pressure: 24mm-35mm: Tubeless (110psi) Tubed (130psi), 36mm-38mm: Tubeless (60psi) Tubed (60psi) - Weight: Wheelset 1,265g, Front 670g, Rear 694g (including 15g, tubeless rim tape and tubeless valve) - Assembly Method: Hand built at every step; from rim layup to the last nipple turn. - Extras: Roval Rim Tape, Spare Spoke & Nipple Kit, System Weight Limit: 275lbs/125kg

Zipp's 303 S Tubeless Disc Brake wheelset provides today's cyclists the versatility they demand with the speed they crave. Expanding greatly on its heritage of conquering the Spring Classics, this 303 wheelset maintains its ideal-for-every-terrain 45mm rim depth but adds a significantly wider internal width to provide greater performance and ride quality in almost every measurable way. This wheelset is tubeless for disc-brake bikes, allowing the ability to run wide tires at lower pressures for race-ready speed on or off the pavement. The 303 S is among our lightest wheelsets, optimized for top aero performance with a 28mm tire but capable of handling gravel tires up to 50mm wide. - Wide rims optimize tire profile to allow lower tire pressure, especially with tubeless. The result is a larger contact patch for increased grip and confident cornering, descending, and handling in wet conditions. - Lower tire pressures and larger volume provides a compliant ride with fewer vibrations. - Significant watt savings when running larger tires at lower pressure. - Wide, hookless rims create a seamless transition to the tire, reducing drag. - Fastest with 28mm, but fits wide gravel tires as well - New Zipp graphics and cosmetic identity that scream speed

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

Shiny wheels at great prices. Rim Brake, Fixed/Freewheel, Polished/Silver, Clincher

Everything about the A 1800 Spline 30 is designed to make the discovery of speed accessible and enjoyable for all. Based on DT's first aero-optimized alloy rim, it marks the democratization of their Aero category. In addition to the rim, hidden nipples and aero spokes enhance the aero advantage. So what are you waiting for? Get them on your bike and chase those local KOMs with speed and the wind as your ally. - 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 - 370 Straightpull hub with 18T Ratchet LN 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

Rims: WTB CZR i23 Carbon 700C - ETRTO 622-23 - Inner width: 23mm - Torayca T700 UD carbon fiber for stiffness and compliance - Asymetric and angled spoke hole drilling - Externally reinforced spoke bed - Drilled for Presta valve - TCS 2.0 Tubeless System compatible - 28 holes Front hub: Shimano HB-RS770 Ultegra series - 12x100mm E-THRU (Axle not included) - Center Lock (6-Bolt adapter included) - Polished angular contact bearings - Contact sealed hub Rear hub: Shimano FH-RS770 Ultegra series - 12x142mm E-THRU (Axle not included) - Center Lock (6-Bolt adapter included) - Polished angular contact bearings - Contact sealed hub and freehub body - Compatible with 11 speed Road (10 speed compatibility requires 1.85mm spacer, not included) Sold in Pair, including: - Tubeless Valve (x2) Assembled in North America by experienced wheelbuilders with Sapim Race Butted Stainless Steel spokes (Black) and 14mm Brass Polyax Nipples

A rock-steady classic for road riding. - 18mm inner width - Professional tubeless tape installation included

Front wheel for track style and fixie bikes. Also great choice for commuters seeking a durable high quality option. You'll be hard-pressed to find a better wheel anywhere near these prices. - Rim brake use - Formula cartridge bearing hub - Bolt-on 9x1 thread x 100mm

Blending the versatility and performance of tubeless ready rims with a broad range of axle compatibility makes these wheels a great choice for service or upgrades options. Rims can accommodate tubes and clincher tires without modification. - Tubeless ready

Single-wall rims, sealed bearing hubs, stainless steel spokes and premium nipples - all at lowest pricing. These wheels are the new standards in affordable repair solutions.

Fantastic value for replacement Fatbike wheels. Tubeless-compatible and low rolling resistance offer enthusiast performance at budget prices.

- Position Front - Wheel Diameter/ISO 700C / 622 - Axle Type QR - Hub Spacing 100mm - Wheel-Brake Comp. Rim - Freehub Body - - Wheel Tire Type Clincher - Rim Material Aluminum - Rim Construction Double wall - Rim Internal Width 13.9mm - Rim inner width range 0-21.9mm - Rim Color Black - Rim Drilling 32 - Hub Model Shimano Sora HB-RS300 - Wheel Weight - - Spoke Type Stainless - Valve Presta - Rim External Width 19.6mm - Depth 22mm - Rim Model Alex DA22 - Skewers Included Yes

Zipp's 303 S Tubeless Disc Brake wheelset provides today's cyclists the versatility they demand with the speed they crave. Expanding greatly on its heritage of conquering the Spring Classics, this 303 wheelset maintains its ideal-for-every-terrain 45mm rim depth but adds a significantly wider internal width to provide greater performance and ride quality in almost every measurable way. This wheelset is tubeless for disc-brake bikes, allowing the ability to run wide tires at lower pressures for race-ready speed on or off the pavement. The 303 S is among our lightest wheelsets, optimized for top aero performance with a 28mm tire but capable of handling gravel tires up to 50mm wide. - Wide rims optimize tire profile to allow lower tire pressure, especially with tubeless. The result is a larger contact patch for increased grip and confident cornering, descending, and handling in wet conditions. - Lower tire pressures and larger volume provides a compliant ride with fewer vibrations. - Significant watt savings when running larger tires at lower pressure. - Wide, hookless rims create a seamless transition to the tire, reducing drag. - Fastest with 28mm, but fits wide gravel tires as well - New Zipp graphics and cosmetic identity that scream speed