700c, 27-Inch & 650c

Rims: Alex GD24P - ETRTO 662-21 - Inner width: 21mm - Profile height: 24mm - Disc Brake Only - For Presta valve - 32 holes Front hub: Shimano 105 HB-RS7070 - 12x100mm E-THRU (Axle not included) - Center Lock Disc Mount - Polished angular contact bearings with Internal Grease Sleeve - Contact sealed hub Assembled in North America by experienced wheel builders with Sapim Race Butted Stainless Steel spokes (Black) and 14mm Brass Polyax Nipples (Black)

- Lighweight and reliable performance road rim brake wheelset with an all-black modern look - Mavic Open Elite rims offers Mavic's renown quality at a budget-friendly price - Traditional box-shaped rim with great lateral stiffness and vertical compliance - Single stainless steel eyelets - Shimano 105 R7000 hubs are lightweight, reliable and feature adjustable cup-and-cone bearings with polished races for superior, long lasting high performance - 32 black stainless steel spokes and black brass nipples for long term reliability and good looks

- High performance, lightweight and reliable road rim brake wheelset with an all-black modern look - Mavic Open Pro, a true reference in high end rims: extremely light (435g) and stiff, with multiple unique features like double stainless steel eyelets, Maxtal alloy and extra smooth welded & milled joint - Traditional box-shaped rim with great lateral stiffness and vertical compliance - Shimano 105 R7000 hubs are lightweight, reliable and feature adjustable cup-and-cone bearings with polished races for superior, long lasting high performance - 32 black stainless steel spokes and black brass nipples for long term reliability and good looks

Rims: WTB EZR i23 700C - ETRTO 622-23 - Inner width: 23mm - Made from 6069 series Aluminum alloy - Asymetric and angled spoke hole drilling distributes spoke tension more evenly - Stronger and lighter rim using a sleeved joint - Disc Brake Only - Drilled for Presta valve - TCS 2.0 Tubeless System compatible - Solid Strip (included) - 32 holes Front hub: Shimano 105 HB-RS7070 - 12x100mm E-THRU (Axle not included) - Center Lock Disc Mount - Polished angular contact bearings with Internal Grease Sleeve - Contact sealed hub Rear hub: Shimano 105 FH-RS7070 - 12x142mm E-THRU (Axle not included) - Center Lock Disc Mount - Polished angular contact bearings with Internal Grease Sleeve - Contact sealed hub and freehub body - Compatible with 11 speed Road (10 speed compatibility requires 1.85mm spacer, not included) - Assembled in North America by experienced wheelbuilders with Sapim Race Butted Stainless Steel spokes (Black) and 14mm Brass Polyax Nipples (Black)

Rims: WTB EZR i23 700C - ETRTO 622-23 - Inner width: 23mm - Made from 6069 series Aluminum alloy - Asymetric and angled spoke hole drilling distributes spoke tension more evenly - Stronger and lighter rim using a sleeved joint - Disc Brake Only - Drilled for Presta valve - TCS 2.0 Tubeless System compatible - Solid Strip (included) - 32 holes Front hub: Shimano 105 HB-RS7070 - 12x100mm E-THRU (Axle not included) - Center Lock Disc Mount - Polished angular contact bearings with Internal Grease Sleeve - Contact sealed hub Rear hub: Shimano 105 FH-RS7070 - 12x142mm E-THRU (Axle not included) - Center Lock Disc Mount - Polished angular contact bearings with Internal Grease Sleeve - Contact sealed hub and freehub body - Compatible with 11 speed Road (10 speed compatibility requires 1.85mm spacer, not included) - Assembled in North America by experienced wheelbuilders with Sapim Race Butted Stainless Steel spokes (Black) and 14mm Brass Polyax Nipples (Black)

- Disc-specific, tubeless-ready clincher rim with Vibrocore, optimized for Gravel, Adventure, and MTB Cross Country use - Vibrocore inner well reduces the transmission of harmful vibration frequencies, improving rider comfort and increasing the fatigue life of the rim - Low-profile 16.5mm depth and wide 27.5mm outer width enhance radial compliance, improving traction while reducing negative feedback to the rider - Bead Nip tubeless bead seats provide reliable tubeless performance, even at low pressures

Comfort joins speed. PR 1600 wheels work perfectly with wider tires, which results in more comfort in the saddle and more grip on the road. These wheels excel on any terrain, transfer every bit of energy into forward momentum and take every corner with Swiss precision. - 350 based Spline hub - Straight-pull hub and spokes are radial laced - Includes steel RWS skewer, tubeless ready tape and tubeless valve

Proterra Light i23 wheels check all the boxes for a fast and light alloy wheelset. The 23mm inner rim width provides the optimal tire profile for adventure road and gravel tires ranging from 30-42mm. Its open-cavity profile features thin, weight-optimized walls that provide the perfect blend of stiffness, resilience, and efficiency. Subdued graphics on a bead-blast finish ensure these wheels won't clash with the colors of your dream bike. We didn't skimp on hubs either. Top-tier EZO bearings, a swift 6-pawl freehub, and 3.7 degrees of engagement provide the look, sound, and feel you expect of a high-end tubeless wheelset. - 23mm inner rim width with 28 spokes laced in a 3-cross pattern - 6069 aluminum alloy rim that is TCS 2.0 tubeless-ready - Sapim Secure Lock 14-gauge alloy nipples minimize rotational weight, while double butted 2.0/1.8/2.0mm J-bend spokes make replacement a breeze. - Tubeless tape, Solid Strip, and black alloy valves are preinstalled, making the wheels ready for tubeless tires the moment they arrive on your doorstep. The TCS 2.0 Solid Strip is a durable strip that lies beneath the tape, prevents it from sagging at the spoke holes, makes it easier to mount a tire, and protects from puncture in the case of a broken spoke. - Center Lock rotor mounts

A high-value, high-performance, full-carbon disc brake road wheel packed with all of the aero and performance benefits of a deep 50mm carbon rim. Wheels for free speed Unlock the speed and performance of a carbon wheel upgrade with Aeolus Elite 50 TLR. This full carbon, tubeless-ready, disc brake road wheel balances durability, weight, and aerodynamics for outstanding performance that doesn't break the bank. A proven shape with a 50mm depth and the added versatility of disc brake hubs make this the perfect high-performance, high-value carbon road wheel. All Bontrager carbon wheels are warrantied for life for the original purchaser and come with the added protection of carbon care. If you damage your wheels while riding in the first two years of ownership, we'll replace them. It’s that easy. Product details - OCLV carbon offers an optimized blend of weight, strength, and durability - D3 Dual Directional Design profile cuts drag at tire-leading and rim-leading edge - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - 50mm depth OCLV Carbon rim (27mm outer, 19.5mm inner width) Grand Strada spokes 24/24, hex alloy nipples - Center lock disc hubs with 12mm thru-axle front and rear, Bontrager 24 point engagement, 3-pawl hub - Compatible with Shimano 10/11 speed, SRAM 10/11 freehubs, 12sp available separately - Includes TLR rim strip, TLR valve, and traditional rim strip - Warrantied for life, no rider weight limit

A high-value, high-performance, full-carbon disc brake road wheel packed with all of the aero and performance benefits of a deep 50mm carbon rim. Wheels for free speed Unlock the speed and performance of a carbon wheel upgrade with Aeolus Elite 50 TLR. This full carbon, tubeless-ready, disc brake road wheel balances durability, weight, and aerodynamics for outstanding performance that doesn't break the bank. A proven shape with a 50mm depth and the added versatility of disc brake hubs make this the perfect high-performance, high-value carbon road wheel. All Bontrager carbon wheels are warrantied for life for the original purchaser and come with the added protection of carbon care. If you damage your wheels while riding in the first two years of ownership, we'll replace them. It’s that easy. Product details - OCLV carbon offers an optimized blend of weight, strength, and durability - D3 Dual Directional Design profile cuts drag at tire-leading and rim-leading edge - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - 50mm depth OCLV Carbon rim (27mm outer, 19.5mm inner width) Grand Strada spokes 24/24, hex alloy nipples - Center lock disc hubs with 12mm thru-axle front and rear, Bontrager 24 point engagement, 3-pawl hub - Compatible with Shimano 10/11 speed, SRAM 10/11 freehubs, 12sp available separately - Includes TLR rim strip, TLR valve, and traditional rim strip - Warrantied for life, no rider weight limit

The SLR 2 65 Disc WheelSystems are lightweight carbon aero wheels that come at a refreshingly accessible price. Featuring a 65mm-deep aero rim profile and a contemporary inner width of 22.4mm, the SLR 2 65 boasts reduced aerodynamic loss and offers improved support for today's higher volume tires. With hookless rim design and optimized carbon layup to ensure a robust structure at minimal weight, the SLR 2 65 and SLR 2 65 Disc offer lightweight aero efficiency to all riders. - 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 and lightweight wheels - 65mm deep hookless aero rim profile with a 22.4mm inner width offers better support for today's higher volume road tires and minimizes aerodynamic loss

The all-new CXR 2 gravel WheelSystem showcases Giant's prowess in building strong, lightweight carbon wheels. Through improved carbon layup, innovative hookless technology, and a large inner rim width that allows for wider tires and lower pressures, the CXR 2 is as strong as our XCR cross-country mountain bike wheel but at a much lighter weight. - 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 structural points to provide stiff, compliant, and lightweight wheels - A 35mm all-round rim profile with a contemporary wider inner width (25mm) offers improved support for today's higher volume road and gravel tires

The SLR 2 50 Disc is an accessibly priced carbon aero road wheel that delivers all-rounder speed and handling performance. It features a 50mm aero rim profiles for efficiency on the flats and a dynamic ride quality on hillier roads. Hookless rims with a broad inner width offer greater support for high-volume tires along with enhanced sidewall stiffness for better grip and cornering. Hookless rim design enhances overall durability, offers a wider inner rim width without adding extra weight and also helps create a more round tire shape providing superior grip and handling as well as added sidewall support when cornering. Additionally, without the rim hook to "push" the tire bead inward, hookless rim design offers a more seamless airflow between the tire and the sidewall of the rim, resulting in less drag and improved aero performance when compared to standard hook-type rims. PROVEN AERO EFFICIENCY A 50mm aero rim shape and 30mm outer rim width combine for improved airflow over the tire and rim. The result is wind-tunnel-proven aero efficiency. LIGHT AND EFFICIENT Fast and versatile for flats, climbs and everything in between, the SLR 2 50 Disc delivers a dynamic ride quality and a lightweight build. TOTAL CONFIDENCE A broad 22.4mm inner rim width combined with a wider 3.8mm bead width provides greater support for high volume tires. This design also produces enhanced sidewall stiffness. The result is better handling and control, especially for high-speed descents and cornering. HIGHLIGHTS: - Hookless rim design saves weight and creates a broad 22.4mm inner rim width for increased actual tire contact patch, resulting in better traction and compliance. - Optimal stiffness: High tensile strength carbon fiber is placed at only the most crucial points to provide optimal stiffness and class-leading weight - Aero efficiency: Wind-tunnel-proven 50mm Hookless Aero Rim Profile provides a maximum aerodynamic advantage

The all-new CXR 2 gravel WheelSystem showcases Giant's prowess in building strong, lightweight carbon wheels. Through improved carbon layup, innovative hookless technology, and a large inner rim width that allows for wider tires and lower pressures, the CXR 2 is as strong as our XCR cross-country mountain bike wheel but at a much lighter weight. - 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 structural points to provide stiff, compliant, and lightweight wheels - A 35mm all-round rim profile with a contemporary wider inner width (25mm) offers improved support for today's higher volume road and gravel tires

The SLR 2 36 Disc brings the performance gains of a stiff, lightweight carbon wheel to more riders everywhere. Light enough for all-day challenges through the mountains but strong and durable for daily training on variable terrain, the SLR 2 36 Disc’s optimized carbon layup contributes to significant weight reduction for better climbing as Giant hookless technology offers a wide inner rim width for a more confident ride.

The SLR 2 50 Disc is an accessibly priced carbon aero road wheel that delivers all-rounder speed and handling performance. It features a 50mm aero rim profiles for efficiency on the flats and a dynamic ride quality on hillier roads. Hookless rims with a broad inner width offer greater support for high-volume tires along with enhanced sidewall stiffness for better grip and cornering. Hookless rim design enhances overall durability, offers a wider inner rim width without adding extra weight and also helps create a more round tire shape providing superior grip and handling as well as added sidewall support when cornering. Additionally, without the rim hook to "push" the tire bead inward, hookless rim design offers a more seamless airflow between the tire and the sidewall of the rim, resulting in less drag and improved aero performance when compared to standard hook-type rims. PROVEN AERO EFFICIENCY A 50mm aero rim shape and 30mm outer rim width combine for improved airflow over the tire and rim. The result is wind-tunnel-proven aero efficiency. LIGHT AND EFFICIENT Fast and versatile for flats, climbs and everything in between, the SLR 2 50 Disc delivers a dynamic ride quality and a lightweight build. TOTAL CONFIDENCE A broad 22.4mm inner rim width combined with a wider 3.8mm bead width provides greater support for high volume tires. This design also produces enhanced sidewall stiffness. The result is better handling and control, especially for high-speed descents and cornering. HIGHLIGHTS: - Hookless rim design saves weight and creates a broad 22.4mm inner rim width for increased actual tire contact patch, resulting in better traction and compliance. - Optimal stiffness: High tensile strength carbon fiber is placed at only the most crucial points to provide optimal stiffness and class-leading weight - Aero efficiency: Wind-tunnel-proven 50mm Hookless Aero Rim Profile provides a maximum aerodynamic advantage

The SLR 2 65 Disc WheelSystems are lightweight carbon aero wheels that come at a refreshingly accessible price. Featuring a 65mm-deep aero rim profile and a contemporary inner width of 22.4mm, the SLR 2 65 boasts reduced aerodynamic loss and offers improved support for today's higher volume tires. With hookless rim design and optimized carbon layup to ensure a robust structure at minimal weight, the SLR 2 65 and SLR 2 65 Disc offer lightweight aero efficiency to all riders. - 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 and lightweight wheels - 65mm deep hookless aero rim profile with a 22.4mm inner width offers better support for today's higher volume road tires and minimizes aerodynamic loss

- Eclypse S9 50mm Carbon - Tubeless-ready, highly aero U-shaped rim - Black straight-pull bladed aero spokes - Japanese sealed cartridge bearings (2 front, 4 rear) - Inner Rim Width: 17mm - Outer rim width: 28mm - Rim Height: 50mm - Presta valve - 20/24 holes - Brake pads not included

There are no compromises on race day, and Profile Design knew that when they designed their 58/TwentyFour tubular wheels. The 58mm-deep rim, 24.5mm rim width, and super stiff carbin layup provide uncompromising go-fast performance. And, the aero shape of the rim slips easily through the breeze, increasing your efficiency and speed. Match these rims up with your favorite tubular tires (sold separately) and experience a ride that clinchers just can't offer, with high-traction cornering and a supple road feel you need to ride to believe. The hubs feature sealed bearings for high-mileage durability and the freehub body is Shimano/SRAM 9, 10, and 11-speed compatible so you can use the drivetrain of your choice.

The SLR 1 65 Disc WheelSystems are lightweight, aero carbon wheels that deliver premium aero gains to all riders. Featuring a 65mm deep rim profile with a contemporary 22.4mm inner width, SLR 1 65 WheelSystems not only provide aerodynamic benefits but also better support for today's higher volume tires. With hookless rim design and optimized carbon layup to ensure robust structure with minimal weight, as well as low friction hubs and Dynamic Balanced Lacing technology to maintain maximum power efficiency, the SLR 1 65 and SLR 1 65 Disc offer riders maximum aero efficiency with no weight penalty. - 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 - 65mm deep aero rim profile with a 22.4mm inner width offers better support for today's higher volume road tires and minimizes aerodynamic loss

The SLR 1 65 WheelSystems are lightweight, aero carbon wheels that deliver premium aero gains to all riders. Featuring a 65mm deep rim profile with a contemporary 22.4mm inner width, SLR 1 65 WheelSystems not only provide aerodynamic benefits but also better support for today's higher volume tires. With hookless rim design and optimized carbon layup to ensure robust structure with minimal weight, as well as low friction hubs and Dynamic Balanced Lacing technology to maintain maximum power efficiency, the SLR 1 65 and SLR 1 65 Disc offer riders maximum aero efficiency with no weight penalty. - 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 - 65mm deep aero rim profile with a 22.4mm inner width offers better support for today's higher volume road tires and minimizes aerodynamic loss

The new SLR 1 50 Disc WheelSystem combines aerodynamic efficiency and minimized power loss in a lightweight package designed for versatile road performance. The SLR 1 50 features 50mm aero rim profiles for efficiency on the flats and a dynamic ride quality on hillier roads. Hookless rims with a broad inner width offer greater support for high-volume tires along with enhanced sidewall stiffness for better grip and cornering. FEATURES - Wind-tunnel-proven 50mm Hookless Aero Rim Profile provides a maximum aerodynamic advantage - High tensile strength carbon fiber is placed at only the most crucial points to provide optimal stiffness and class-leading weight - Hookless rim design saves weight and creates a broad 22.4mm inner rim width for increased actual tire contact patch, resulting in better traction and compliance - A thick rim bead of up to 3.8mm on each side enhances rim bead stiffness, offering increased support for better cornering - Dynamic Balanced Lacing (DBL) technology makes a stiffer, more efficient wheel as a wider hub flange increases spoke bracing angles for outstanding power transmission - Low friction hub with precision machined internals eliminates excessive bearing load, reducing bearing friction, lowering rolling resistance and minimizing power loss SPECIFICATIONS - Tubeless: Giant Tubeless System (rim tape and valve kit included) - Suggested Tire Size: 700 x 25C – 700 x 32C - Rim Height: 50mm - ETRTO: 622-22 - Hub Compatibility: Shimano HG, SRAM XDR (XDR driver sold separately) - Bearing: Sealed Cartridge - Weight (Front): 703g

There are no compromises on race day, and Profile Design knew that when they designed their 78/TwentyFour carbon tubular wheels. The 78mm-deep and 24.5mm-wide rim and super stiff carbon layup provide uncompromising go-fast performance. And, the aero shape of the rim slips easily through the breeze, increasing your efficiency and speed. Match these rims up with your favorite tubular tires (sold separately) and experience the high-traction cornering and supple road feel you need to ride to believe. The hubs feature sealed bearings for high-mileage durability and the freehub body is Shimano/SRAM 9, 10, and 11-speed compatible so you can use the drivetrain of your choice.

Get some extra speed in criteriums, time trials, and triathlons on Profile's 38/TwentyFour wheels. Their 38mm-deep carbon rims slice through the wind, yet are not so deep that they get pushed around in crosswinds. For extra stiffness, hi-flange hubs are paired with handbuilt construction, and bladed spokes.

Zipp's 302 Tubeless rim-brake wheels deliver dependable speed for aspiring and experienced cyclists alike. These wheels provide great value and performance and are now tubeless, allowing you to run lower tire pressure for greater cornering grip and reduced rolling resistance without the risk of pinch flats. Its 45mm deep, Indianapolis-made carbon rim is optimized for low aerodynamic drag and precise handling in all riding conditions. The 302's smooth carbon rim is laced to Zipp's 76 hub using Belgian CX-Sprint spokes and brass spoke nipples to build a wheel that is fast and reliable—tough enough to thrive in the big Gran Fondo or the road less traveled, yet light enough to tackle the steepest grades. The 302 is equally suited to training rides or duking it out at your local race series. - Tubeless design provides secure performance when riding at lower tire pressures - New Zipp graphics and cosmetic identity that scream speed - Dependable 76/176 hubs with Sapim CX Sprint J-bend spokes - Ships with QR end caps and quick release skewers

Races, training, group rides, gran fondos—Profile’s 58/Twenty Four Full Carbon Clinchers will be your new secret weapon. Their engineers used fluid dynamic modeling and wind tunnel testing to create a super slippery 58mm-deep by 24.5mm-wide rim for maximum free speed and slicing right through head and cross winds. Adding mph are the Sapim CX-Ray bladed spokes, which have locking nipples so they stay tight. These wing-like wheels save you massive energy on the flats and they're also light enough to rocket you up the climbs. Plus, Profile's careful hand assembly and advanced carbon layup mean rock-solid stiffness for outstanding power transfer. And, because sometimes you just have to hit the brakes, Profile includes high-tech carbon wrapping and a heat-resistant resin in its rims, plus carbon-compatible brake pads come with the wheels so you'll have more stopping power than ever. Upgrade to the 58/Twenty Fours and get ready to become a better rider.

A strong, light, and durable carbon Boost road wheel with a 25mm inner width and Rapid Drive 108 hub that's perfect for higher-volume road and gravel tires. Aeolus Pro 3V is the ultimate road disc upgrade. It has a wider 25mm internal rim so you can run lower pressure for better tire support, added traction, better cornering, and a faster, more comfortable ride. Plus, a Rapid Drive 108 road hub with Boost 148 spacing adds snappy engagement for an all-around better, more confident ride. Product details - OCLV Pro Carbon offers an optimized blend of weight, strength, and durability - D3 Dual Directional Design profile cuts drag at tire-leading and rim-leading edge - 25mm inner rim width (32mm outer) for added tire support to suit larger-volume road and gravel tires - Rapid Drive 108 road hubs provide quick engagement for faster acceleration and increased control - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - Boost 148 wider hub flanges enhance bracing angle for stiffer wheel - No rider weight limit

The SLR 1 65 Disc WheelSystems are lightweight, aero carbon wheels that deliver premium aero gains to all riders. Featuring a 65mm deep rim profile with a contemporary 22.4mm inner width, SLR 1 65 WheelSystems not only provide aerodynamic benefits but also better support for today's higher volume tires. With hookless rim design and optimized carbon layup to ensure robust structure with minimal weight, as well as low friction hubs and Dynamic Balanced Lacing technology to maintain maximum power efficiency, the SLR 1 65 and SLR 1 65 Disc offer riders maximum aero efficiency with no weight penalty. - 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 - 65mm deep aero rim profile with a 22.4mm inner width offers better support for today's higher volume road tires and minimizes aerodynamic loss

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

Races, training, group rides, gran fondos—Profile’s 58/Twenty Four Full Carbon Clinchers will be your new secret weapon. Their engineers used fluid dynamic modeling and wind tunnel testing to create a super slippery 58mm-deep by 24.5mm-wide rim for maximum free speed and slicing right through head and cross winds. Adding mph are the Sapim CX-Ray bladed spokes, which have locking nipples so they stay tight. These wing-like wheels save you massive energy on the flats and they're also light enough to rocket you up the climbs. Plus, Profile's careful hand assembly and advanced carbon layup mean rock-solid stiffness for outstanding power transfer. And, because sometimes you just have to hit the brakes, Profile includes high-tech carbon wrapping and a heat-resistant resin in its rims, plus carbon-compatible brake pads come with the wheels so you'll have more stopping power than ever. Upgrade to the 58/Twenty Fours and get ready to become a better rider.