700c, 27-Inch & 650c

Upgrade or refresh your bike. - Original Equipment replacement Bontrager AT-550 700c wheels - Bontrager AT-550 single wall, non-eyeletted rims - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed

A high-value, high-performance, full-carbon disc brake road wheel packed with all of the aero and performance benefits of a 35mm carbon rim. Wheels for free speed Unlock the speed and performance of a carbon wheel upgrade with Aeolus Elite 35 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 35mm 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 - 35mm 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 35mm carbon rim. Wheels for free speed Unlock the speed and performance of a carbon wheel upgrade with Aeolus Elite 35 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 35mm 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 - 35mm 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

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

There has never been a better time to upgrade to the feel and performance of carbon wheels. Aeolus Pro 3 TLR is a full carbon, tubeless-ready rim brake road wheel that balances durability, weight, and aerodynamics for pro-level performance that doesn’t break the bank. We started with a proven 35mm-depth shape and added a confidence-inspiring brake track to make a carbon road wheel available to all. Key features - D3 Dual Directional Design profile cuts drag at tire-leading and rim-leading edge - OCLV Pro carbon offers an optimized blend of weight, strength, and durability - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - Confidence inspiring brake track increases stopping power while dissipating heat - 35mm depth OCLV Carbon rim (27mm outer, 19.5mm inner width) DT Aerolite spokes and Alpina locking nipples - Quick release hubs, Bontrager 24 point engagement, 3 pawl hub - Compatible with Shimano 10/11 speed, SRAM 10/11 freehubs - Includes TLR rim strip, TLR valve, valve core removal tool, Black Prince carbon pads, and traditional rim strip

A carbon road wheel with a 37mm depth that pairs our latest rim profile with Pro-level pricing to deliver an easy upgrade in speed, weight, and stability. Fast and lightweight The versatile Aeolus Pro 37 is the perfect wheel for climbs, crits, cross, and more. The strong, lightweight Pro-level OCLV Carbon allows for faster, more stable rim profiles—and the silky smooth hubs rolling on DT Swiss 350 internals deliver a quick-rolling ride wherever you roam. 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 Pro carbon offers an optimized blend of weight, strength, and durability - All-new 37mm depth brings the benefits of aerodynamics to lightweight design - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - 37mm depth OCLV Carbon rim (28mm outer, 21mm inner width), DT Aerolite spokes 24/24, DT Pro Lock nipples - Center lock disc hubs with 12mm thru-axle front and rear, DT Swiss 350 hubs with 18 point engagement - 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 carbon road wheel with a 37mm depth that pairs our latest rim profile with Pro-level pricing to deliver an easy upgrade in speed, weight, and stability. Fast and lightweight The versatile Aeolus Pro 37 is the perfect wheel for climbs, crits, cross, and more. The strong, lightweight Pro-level OCLV Carbon allows for faster, more stable rim profiles—and the silky smooth hubs rolling on DT Swiss 350 internals deliver a quick-rolling ride wherever you roam. 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 Pro carbon offers an optimized blend of weight, strength, and durability - All-new 37mm depth brings the benefits of aerodynamics to lightweight design - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - 37mm depth OCLV Carbon rim (28mm outer, 21mm inner width), DT Aerolite spokes 24/24, DT Pro Lock nipples - Center lock disc hubs with 12mm thru-axle front and rear, DT Swiss 350 hubs with 18 point engagement - 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 light and durable carbon road wheel with a 25mm inner width and OCLV NEXT carbon construction optimized for higher-volume road and gravel tires. - OCLV NEXT thermoplastic carbon construction helps absorb vibrations for a smoother, faster ride - 37mm depth and 25mm inner width brings leading performance to wider road and gravel wheels and tires - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - Rapid Drive 108 road hubs provide quick engagement for faster acceleration and increased control - 12mm thru-axle Centerlock disc, DT Swiss Aerolite14, 17 spokes, and Prolock alloy nipples - Compatible with Shimano 10/11/12 speed, SRAM 10/11 freehubs, 12sp XDR available separately

A light and durable carbon road wheel with a 25mm inner width and OCLV NEXT carbon construction optimized for higher-volume road and gravel tires. - OCLV NEXT thermoplastic carbon construction helps absorb vibrations for a smoother, faster ride - 37mm depth and 25mm inner width bring leading performance to wider road and gravel wheels and tires - Tubeless Ready (TLR) rims allow for a quick transition to a tubeless system - Rapid Drive 108 road hubs provide quick engagement for faster acceleration and increased control - 12mm thru-axle Centerlock disc, DT Swiss Aerolite14, 17 spokes, and Prolock alloy nipples - Compatible with Shimano 10/11/12 speed, SRAM 10/11 freehubs, 12sp XDR available separately

A carbon road wheel with a 51mm depth that pairs our latest rim profile with Pro-level pricing to deliver an easy upgrade in speed, weight, and stability. Fast and lightweight The versatile Aeolus Pro 51 delivers the latest Aeolus rim profiles for unmatched speed and stability performance at Pro-level prices. The strong, lightweight Pro-level OCLV Carbon allows for faster, more stable rim profiles. These Tubeless Ready rims feature a wider 23mm inner width that's proven to roll with less drag, adding to the overall speed gains. Silky-smooth hubs rolling on DT Swiss 350 internals deliver a fast and quick-rolling ride. All Bontrager carbon wheels are warrantied for life for the original purchaser and come with the added protection of Carbon Care. If you structurally damage your wheels while riding in the first two years of ownership, we'll replace them. It's that easy. Product details - Pro OCLV carbon offers an optimized blend of weight, strength, and durability - 51mm depth rim profile born of 3D design modeling for our fastest, most stable design ever - 23mm inner width proven to roll smoother with less drag for a faster wheel and tire system - Tubeless Ready (TLR) rims allow for quick transition to a tubeless system - 51mm depth OCLV Carbon rim (30mm outer, 23mm inner width), DT Aerolite spokes 24/24, DT Pro Lock nipples - Smooth and reliable DT Swiss 350 hubs with 18-point engagement, SRAM/Shimano 10/11 freehubs, 12sp available - Centerlock disc hubs with 12mm thru-axle front and rear, axle swap available for QR and 15mm - Includes TLR rim strip, TLR valve, and traditional rim strip

A fast, light, and durable carbon road wheel with a 25mm inner width, 37mm depth, and DT Swiss 240 hub that's perfect for higher-volume road and gravel tires. Lighter, faster, wider When you want to take the road less traveled and travel fast. The Aeolus RSL 37 V Road Wheel brings our latest, lightest, fastest rim shape with a wider 25mm inner width. Perfect for today's high volume road and gravel tires. 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 RSL Carbon is lighter and stronger and allows for faster, more stable rim profiles - RSL optimized 37mm depth and 25mm inner width brings leading performance to wider road and gravel wheel and tires - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - 37mm depth OCLV Carbon rim (25mm inner 31mm outer width), DT Aerolite spokes 24/24, DT Relock nipples - Smooth-rolling, ultralight DT Swiss 240 internals - Center lock disc hubs with 12mm, axle swap available for front QR and rear 15mm - Includes TLR rim strip, TLR valve, and traditional rim strip, tape compatible

A fast, light, and durable carbon road wheel with a 25mm inner width, 37mm depth, and DT Swiss 240 hub that's perfect for higher-volume road and gravel tires. Lighter, faster, wider When you want to take the road less traveled and travel fast. The Aeolus RSL 37 V Road Wheel brings our latest, lightest, fastest rim shape with a wider 25mm inner width. Perfect for today's high volume road and gravel tires. 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 RSL Carbon is lighter and stronger and allows for faster, more stable rim profiles - RSL optimized 37mm depth and 25mm inner width brings leading performance to wider road and gravel wheel and tires - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - 37mm depth OCLV Carbon rim (25mm inner 31mm outer width), DT Aerolite spokes 24/24, DT Relock nipples - Smooth-rolling, ultralight DT Swiss 240 internals with Ratchet EXP 36-point engagement - Compatible with Shimano 10/11 speed, SRAM 10/11 freehubs, 12 speed available separately - Center lock disc hubs with 12mm thru-axle front and rear, axle swap available for QR and 15mm - Includes TLR rim strip, TLR valve, and traditional rim strip, tape compatible

Upgrade or refresh your bike. GENUINE REPLACEMENT PARTS When it's time to refresh your trusty bike, Trek Genuine Replacement Parts have you covered. PRODUCT DETAILS - Original equipment replacement Bontrager Affinity TLR Disc 32H wheels - Alloy double-wall rim with 21mm internal, 26mm external width - Convert to tubeless with TLR rim strip and valve, sold separately - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed

Upgrade or refresh your bike. - Original Equipment replacement Bontrager TLR wheels - Bontrager Approved double wall, non-eyeletted rims - Convert to tubeless with TLR rim strip and valve, sold separately - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed

Upgrade or refresh your bike. GENUINE REPLACEMENT PARTS When it's time to refresh your trusty bike, Trek Genuine Replacement Parts have you covered. PRODUCT DETAILS - Original Equipment replacement Bontrager TLR wheels - Bontrager Approved double wall, non-eyeletted rims - Convert to tubeless with TLR rim strip and valve, sold separately - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed

Get back on the bike with a genuine replacement wheel. When it's time to refresh your trusty bike, Trek genuine replacement wheels have you covered. PRODUCT DETAILS - Original equipment replacement Bontrager Approved TLR wheel - Bontrager Approved double wall, non-eyeletted rims - Convert to tubeless with TLR rim strip and valve, sold separately - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed

Upgrade or refresh your bike. GENUINE REPLACEMENT PARTS When it's time to refresh your trusty bike, Trek Genuine Replacement Parts have you covered. PRODUCT DETAILS - Original Equipment replacement Bontrager TLR Disc wheels - Bontrager Approved double wall, non-eyeletted rims - Convert to tubeless with TLR rim strip and valve, sold separately - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed

Upgrade or refresh your bike. - Original equipment replacement Bontrager Connection Disc wheels - Durable double-wall rim with 20mm internal, 26mm external width - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed

Upgrade or refresh your bike. - Original equipment replacement Bontrager Connection Disc wheels - Durable double-wall rim with 20mm internal, 26mm external width - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed

A durable road wheel with a 25mm inner width perfect for higher-volume road and gravel tires. A wider rim for a better ride The Paradigm Comp 25 road wheel adds traction, speed, confidence, and comfort to your ride, with a wider internal rim width that lets you run lower pressure for better tire support. Product details - 25mm inner rim width (30mm outer) offers added tire support to better suit larger-volume road and gravel tires - Rapid Drive 54 road hubs provide quick engagement for faster acceleration and increased control - Offset spoke bed reduces wheel dish for stiff and stable performance - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - 23mm rim depth with 24 hole front/rear and DT Aerolite spokes - Centerlock disc with 12mm thru-axle and end caps available for 15mm conversion - Includes TLR rim strip and TLR valve for simple tubeless setup - No rider weight limit

A durable road wheel with a 25mm inner width perfect for higher-volume road and gravel tires. A wider rim for a better ride The Paradigm Comp 25 road wheel adds traction, speed, confidence, and comfort to your ride, with a wider internal rim width that lets you run lower pressure for better tire support. Product details - 25mm inner rim width (30mm outer) offers added tire support to better suit larger-volume road and gravel tires - Rapid Drive 54 road hubs provide quick engagement for faster acceleration and increased control - Offset spoke bed reduces wheel dish for stiff and stable performance - Tubeless Ready (TLR) rims allow for quick transition to tubeless system - 23mm rim depth with 24 hole front/rear and DT Aerolite spokes - Centerlock disc with 12mm thru-axle and end caps available for 15mm conversion - Includes TLR rim strip and TLR valve for simple tubeless setup - No rider weight limit

Get back on the bike with a genuine replacement wheel. When it's time to refresh your trusty bike, Trek genuine replacement wheels have you covered. PRODUCT DETAILS - Original equipment replacement Bontrager Paradigm SL TLR 24H Hole wheel - Lightweight alloy rim (26mm outer, 21mm inner width) - Centerlock disc brake hubs - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed

Get back on the bike with a genuine replacement wheel. When it's time to refresh your trusty bike, Trek genuine replacement wheels have you covered. PRODUCT DETAILS - Original equipment replacement Bontrager Paradigm SL TLR 24H Hole wheel - Lightweight alloy rim (26mm outer, 21mm inner width) - Centerlock disc brake hubs - Does not include skewer, reflector, rim strip, valve, or owner's manual - Wheels shipped as photographed

A dependable, tubeless ready (TLR) wheel that delivers stiffness and stability for high-end performance. Disc brake ready The Tubeless Ready Paradigm TLR Disc wheel offers consistent, confident performance and tire support. Stacked lacing provides a better bracing angle for a stiffer wheel and an agile and more responsive ride feel. Disc brakes offer improved braking performance for added confidence. Product details - Tubeless ready (TLR) rims allow for quick transition to tubeless system upgrade - Offset spoke bed reduces wheel dish for stiff and stable performance - 6061 alloy rim 23mm outer, 19.5mm inner width, 3-pawl hub - Compatible with Shimano 10/11spd, SRAM 10/11, Centerlock freehubs - Includes Bontrager TLR rim strip and TLR valve stem - No rider weight restrictions

A dependable, tubeless ready (TLR) wheel that delivers stiffness and stability for high-end performance. Disc brake ready The Tubeless Ready Paradigm TLR Disc wheel offers consistent, confident performance and tire support. Stacked lacing provides a better bracing angle for a stiffer wheel and an agile and more responsive ride feel. Disc brakes offer improved braking performance for added confidence. Product details - Tubeless ready (TLR) rims allow for quick transition to tubeless system upgrade - Offset spoke bed reduces wheel dish for stiff and stable performance - 6061 alloy rim 23mm outer, 19.5mm inner width, 3-pawl hub - Compatible with Shimano 10/11spd, SRAM 10/11, Centerlock freehubs - Includes Bontrager TLR rim strip and TLR valve stem - No rider weight restrictions

Light, smooth, and durable Paradigm is perfect for the cyclist looking for reliable, durable performance at a great value and is packed with many of the features of our higher end wheels. Paradigm features a tubeless ready (TLR) design for easy tubeless conversion and stacked lacing which provides a better bracing angle for a stiffer wheel and more responsive ride feel. Choose Paradigm TLR road wheels for lasting durability and performance that won't break the bank. Product details - Tubeless ready (TLR) rims allow for quick transition to tubeless system upgrade - Offset spoke bed reduces wheel dish for stiff and stable performance - 6061 alloy rim 23mm outer, 19.5mm inner width, 3-pawl hub compatible with Shimano 10/11 speed, SRAM 10/11 freehubs - Includes Bontrager TLR rim strip, TLR valve stem, internal cam quick release - No rider weight restrictions

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

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

Zipp's 303 Firecrest Tubeless wheels are designed for the real world—a world of imperfect conditions, varying road surfaces, and elements where the bottom line is simple: efficiency = speed. They're faster, lighter, and more capable over varied terrain—whether the surface is pavement in all its conditions or no pavement at all. Deeply rooted in Zipp's drive to conquer the Spring Classics, the new 303 Firecrest is remade with a purpose-made approach for the demands of modern road bikes. When it comes to going fast on a bicycle, efficiency means reduced wind resistance, rolling resistance, rider fatigue, and weight. The 303 Firecrest Tubeless Disc-brake was designed using real-world direct measurements (vs. primarily wind tunnel or computer simulation). The results were huge. Its rim is slightly more bulbous in design than its predecessor, with a 32mm outside width, a 25mm internal width, and a 40mm rim depth. The profile provides low drag and an improved transition between rim and tire, boosting aero efficiency on the road. The wide rim stance also features less tire deflection for reduced rolling resistance. The combination of the wider tire, increased tire volume, and lower tire pressure helps to reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tire and wheel system absorbs the shaking, not the rider. At the center of the 303 Firecrest Tubeless is a versatile and durable new hubset, the German-engineered ZR1 DB. This hubset features 66 points of engagement for quicker response. The 303 Firecrest Tubeless wheels are for dedicated cyclists who aspire to the latest in technology. They're for those who compete in races, against peers, or simply to conquer personal limits. - New Zipp graphics and cosmetic identity that scream speed - Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile - Lighter weight than its predecessor, making it nimble and fast - Tubeless Made Easy, optimized tire bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tire. - Ultra-wide 25mm rim profile creates a better tire interface to be fast on or off the road - 40mm rim depth makes a light and aero wheel in every situation - Ships with 12mm end caps - Center Lock rotor interface (lockring included)