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.

Been eyeing our new Airless-tire-equipped Alibi, but already have a trusty commuting steed? Featuring our Nimbus 700x38C Airless tires, the Alibi Sport Wheelset lets you reap the benefits of Airless tires on your beloved ride. With a 7-/8-/9-speed compatible hub, a machined braking surface, and double-wall rims, you'll spend more time riding and less time doing maintenance. - Double-wall rims are strong and durable. - Machined braking surface creates superior stopping power in any condition. - 7-/8-/9-speed cassette rear hub provides plenty of gearing options for climbing and riding the flats. - Standard equipment on Alibi Sport bike. - Quick-release/Alloy hubs w standard cassette body. - Comes with Nimbus 700x38C Airless tires. - Rim brake only. - Perfect for upgrading hybrids to Airless technology. - Sold as a set.

Sta-Tru Double Wall Rear Wheels - Hub/Brake Compatibility: Rim Brake - Wheel Size: 700c - Cassette Body Type: Threaded Standard 1.37" x 24tpi - ISO Diameter: 622 / road / 29" - Valve: Schrader - Tire Type: Clincher

Tom Ritchey believes in high quality aluminum road wheels because they offer incredible performance and durability that’s hard to beat at any price. He designed the critically acclaimed Zeta to be wide, light and laterally stiff—perfect for a great road riding experience, yet still tough enough to endure gravel road rides and cyclocross races that would chew lesser wheels to pieces. Updated for 2024 with a 4-pawl freewheel and DT Competition spokes, the tubeless-ready Classic Zeta Disc wheels combine decades of historic ride-proven research, testing with modern standards, and a sophisticated aesthetic to deliver the legendary Ritchey ride quality at an attainable price.

The all-new Rapide CL II wheelset brings the Rapide CLX II’s speed, efficiency, incredible handling, and stability in any conditions to more riders. Built on the exact same rims as the Rapide CLX II to elevate all this performance with tubeless-done-right technology, the Rapide CL II makes that performance easier to catch at check-out and you almost impossible to catch on the open road. - Tire Size: 24mm - 38mm; Max Pressure: 24mm-35mm: Tubeless (110psi) Tubed (130psi), 36mm – 38mm: Tubeless (60psi) Tubed (60psi) - Weight: Wheelset 1,590g, Front 725g, Rear 865g (including 15g, tubeless rim tape and tubeless valve) - Assembly Method: Hand built at every step; from rim layup to the last nipple turn. - System Weight Limit: 275lbs /125kg.

The 65 Foundation wheel provides best-in-class aerodynamics and confidence-inspiring cross-wind stability to assist you in your hardest efforts in time trial and triathlon racing. The 65 offers a ton of value and is loaded with Enve technology, like shapes derived in a wind tunnel, tuned carbon laminates, and built-in flat tire protection. The sum of these parts isn’t just a faster ride, it’s a better ride experience. - 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 - 65mm depth and 21mm internal rim width, Aero Optimized design to support 25 - 28mm tires. For use with Tubeless tires only

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.

Are you already planning your next bikepacking trip? The GR 1600 wheels are made for gravel adventures and all those unique experiences one can find far away from the tarmac and the rest of the road cycling community. A super durable aluminum wheel made of reliable components that supports you for endless miles of troublefree riding pleasure. Ready to explore the world? With the GR 1600 you definitely are. - 350 based Spline hub

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

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

Designed with the goal of balancing performance and comfort, the Wind 57 guarantees fluid handling and versatility. These wheels are not solely for road use, as they can also handle light off-road riding too (ASTM category 2), so your ride can extend beyond traffic-congested roads. The Wind 57 inherits many of Fulcrum’s proprietary technologies, to offer a superior ride feel compared to the previous generation. Handling and reactivity characteristics have been improved to make these versatile and comfortable wheels perfect for the modern cyclists. - Wind rims are higher and wider than the previous generation. At the same time the overall weight has been reduced, thanks to the new mix of carbon fibers and their layup inside the mould - Rim height has been raised to 57 mm respectively, with an inner rim channel of 23 mm to accommodate larger tires - Patented DRSC (Directional Rim-Spoke Coupling) system is used in the construction of the rim to provide greater stiffness and durability of the wheel - The no-holes MOMAG assembly technology allows for a 2-WAY FITT tubeless rim, without the need for tubeless rim tape and the presence of the traditional hook ensures the maximum compatibility will all tube-type and tubeless tires on the market and the maximum safety for riders - Build with stainless steel butted spokes, with self-locking aluminum nipples and laced with the Two-to-One system to increase wheel strength - Forged alloy hubs with sealed bearings to minimise wear and guarantee exceptional smoothness - The ratchet system of the freewheel has been reinforced and increased in size to provide 36 points of engagement - Redesigned graphics and visible technical information

Designed with the goal of balancing performance and comfort, the Wind 57 guarantees fluid handling and versatility. These wheels are not solely for road use, as they can also handle light off-road riding too (ASTM category 2), so your ride can extend beyond traffic-congested roads. The Wind 57 inherits many of Fulcrum’s proprietary technologies, to offer a superior ride feel compared to the previous generation. Handling and reactivity characteristics have been improved to make these versatile and comfortable wheels perfect for the modern cyclists. - Wind rims are higher and wider than the previous generation. At the same time the overall weight has been reduced, thanks to the new mix of carbon fibers and their layup inside the mould - Rim height has been raised to 57 mm respectively, with an inner rim channel of 23 mm to accommodate larger tires - Patented DRSC (Directional Rim-Spoke Coupling) system is used in the construction of the rim to provide greater stiffness and durability of the wheel - The no-holes MOMAG assembly technology allows for a 2-WAY FITT tubeless rim, without the need for tubeless rim tape and the presence of the traditional hook ensures the maximum compatibility will all tube-type and tubeless tires on the market and the maximum safety for riders - Build with stainless steel butted spokes, with self-locking aluminum nipples and laced with the Two-to-One system to increase wheel strength - Forged alloy hubs with sealed bearings to minimise wear and guarantee exceptional smoothness - Redesigned graphics and visible technical information

Introducing the Gravel racing GRC 1400. With a holistic approach of engineering DT re-thought the characteristics of a modern benchmark setting gravel wheel set. Aerodynamic efficiency, ideal support of wide gravel tires leading to comfort and traction off-road as well as remarkable durability are only some of the key features that make this wheel set the perfect companion for your next gravel adventure. - 42mm aero-optimized rim depth for 35mm wide gravel tires - 36T RatchetSystem technology

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.

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 - 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 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 - Ratchet EXP freehub drive system - Includes tubeless valve, tape and wheel bag - Tubeless ready, 24mm wide carbon rim with 50mm high profile rim

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

Reserve wheels are built on the highest quality carbon rims on the market. Everything from the thickness of the rim beads to the external spoke hole reinforcements comes purely from experience of knowing what riders need at every level-from international racing to your local trails. - Built with standard high-quality components including j-bend spokes (28 count) and Sapim mechanically locking nipples - Ships with rim tape installed, tubeless-ready valves, and cards identifying the Santa Cruz builder of each of your wheels - Backed by a lifetime warranty - Built with Industry Nine Hubs

Origin-8's Track Attack 42mm Fixie Wheelset comes in a rainbow of colors, from the subdued to the bold, so you'll know your ride is the sharpest on the block. But, they're not just a pretty face. They feature 42mm deep aluminum rims, sealed cartridge bearings and reliable DT Swiss spokes to roll strong and sure over less-than-ideal surfaces. And, they come with a flip-flop rear hub so you can choose between fixed and freewheeling!

Conquer mountains, flatten hills, and feel your bike come alive with this ultra-light, 1365 gram wheelset. Mass is the enemy of performance, and the Alpinist CL is the lightest wheelset in its class. Weight has been pared to the absolute minimum to make the make the most of every watt and deliver incredible responsiveness without sacrificing any of the strength, ride quality, or durability that are crucial to long-term performance and satisfaction. - Assembly Method: Hand-built - Braking Surface: Disc brake only - Extras: Roval padded wheelbag. NoFault crash replacement policy. Lifetime warranty. - Nipple Type: DT Swiss Pro Lock hexagonal - Rear Hub: Roval AeroFlange Disc, Center Lock, Sealed Cartridge bearings, DT Swiss EXP internals, HG Freehub, 142x12mm thru-axle compatible - Rim Depth: 33mm - Rim Material: Carbon - Rim Type: Carbon, clincher (tube-type) - Rim Width: 21mm internal - Spoke Count: 24 - Spoke Pattern: One-cross/Two-cross (2:1) - Spoke Type: DT Swiss Aerolite T-head - Weight: 686g

Value HD Series wheels are built with everyday use in mind, for heavy-duty applications. Featuring premium double wall rims, stainless steel spokes, and sealed hubs, the Value HD Series support a heavier load capacity and an expanded range of fitments. - Rim Brake - Stainless Spokes - Professional tubeless tape installation included - 36 Hole

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. - 25mm external rim width

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.

As the most versatile wheel in the line, the SES 3.4 is the go-to for just about any terrain or surface conditions. The high-volume design of the rim and Wide Hookless Bead technology not only makes the SES 3.4 a modern road wheel that is raced at the World Tour level, but it’s also a favorite for mixed surface events due to its feature benefits that clearly separate it from other wheels in the same depth category. Pinch-flat resistance, low weight, and an aero profile optimized around high-volume tires are key features of the SES 3.4, making it the most adept all-around wheel. - 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 - 42mm rear depth and 25mm internal rim width supports minimum tire sizes of 27mm, with an Aero Optimized design around 29mm tires. For use with Tubeless tires only - Rims are pre-taped and tubeless ready

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 - 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

When pushing the highest speeds in time trial and triathlon racing, the SES 7.8 will provide you an unmistakable aero advantage. The outright fastest wheelset in ENVE’s line is well proven in the world’s biggest races. The SES 7.8 features asymmetric rim geometries with the rear rim at 80mm deep and 27.5 mm wide, designed to improve the efficiency of the airflow in the system of bike frame and wheels when paired together. - Full carbon rim is optimized for improved aerodynamics, and provide better tubeless performance - Tubeless compatible design allows you to run much lower tire pressures for far greater comfort, traction, and efficiency, especially over poor road surfaces and gravel, all without sacrificing speed - 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 - 78mm rear depth and 19mm internal rim width supports an Aero Optimized design around 25mm tires - Rims are pre-taped and tubeless ready

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

The all-new Rapide CL II wheelset brings the Rapide CLX II’s speed, efficiency, incredible handling, and stability in any conditions to more riders. Built on the exact same rims as the Rapide CLX II to elevate all this performance with tubeless-done-right technology, the Rapide CL II makes that performance easier to catch at check-out and you almost impossible to catch on the open road. - Tire Size: 24mm - 38mm; Max Pressure: 24mm-35mm: Tubeless (110psi) Tubed (130psi), 36mm – 38mm: Tubeless (60psi) Tubed (60psi). - Weight: Rear 865g (including 15g, tubeless rim tape and tubeless valve). - Assembly Method: Hand built at every step; from rim layup to the last nipple turn. - System Weight Limit: 275lbs / 125kg

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 - Ratchet EXP freehub drive system - Includes tubeless valve, tape and wheel bag - Tubeless ready, 24mm wide carbon rim with 50mm high profile rim