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700c, 27-Inch & 650c

Zipp 404 Firecrest Carbon Clincher Tubeless Disc Brake 700c Rear
$1,350.00
Road bikes are ever evolving and ever inspiring. The new 404 Firecrest Carbon Clincher Tubeless Disc-brake wheelset offers cyclists everywhere the opportunity to experience superior braking and stopping power to match the speed and stability of SRAM's most popular and versatile 58mm rim depth. Aero has never been so affordable and attainable. The consistency and power of disc brakes provides precision modulation and stopping power, literally at your fingertips. As for speed, the 404 Firecrest is where the Firecrest Revolution began. If you had to choose just one wheel, the 404 Firecrest should be your choice. With a depth and shape proven in all conditions, it’s a classic all-around performer and the standard by which all other wheels are measured. At the center of the 404 Firecrest Carbon Clincher Tubeless Disc-brake is the durable and versatile 77/177D hubset, which offers options for riders to switch wheels from quick-release to thru-axle without tools. - Firecrest rim Technology provides world class handling and stability - 77/177d hubset, with its best-in-class durability and improved bearing protection, all with no pre-load adjustment needed - Aero performance, durable and Light Weight - To ensure compatibility with any bike, the versatile 77/177D hubs come with swappable end caps to work with QR’s and thru-axles - Tubeless ensuring secure performance even when ridden at lower tire pressures. - ISO 4210 compliant. See Declaration of Conformity for details.
Zipp 808 Firecrest Carbon Clincher Tubeless Disc Brake 700c Rear
$1,500.00
There’s nothing middle of the road about the 808 Firecrest. At 82mm deep, it’s all out aero. Thanks to refinements to Zipp’s revolutionary Firecrest rim shape to be tubeless compatible and optimized for wider tires, the 808 Firecrest Carbon Clincher Tubeless Disc brake is ideal for the new era of disc brake road riding and racing. Without the constraints of rim brake caliper compatibility or brake-track requirements, the Firecrest Carbon Clincher Tubeless Disc-brake wheels offer the increased stopping power and modulation of disc brakes and a whole lot more. To maximize the aero performance of the wheels, Zipp’s ABLC dimples extend all the way to the outer edge of the disc-specific rims. The wheels are also optimized for wider tires to meet the performance needs of modern riders in search of low rolling resistance and aero efficiency with high comfort. The deeper Firecrest Tubeless Disc brake has an internal width of 19mm and are aerodynamically optimized for 25mm wide tires. This design improves Firecrest’s ability to yield low aerodynamic drag and high crosswind stability, a combination called AeroBalance. Designed to be tubeless compatible, the wheels feature a rim bed made with internal ridges to lock the tire’s bead in place, ensuring secure performance even when ridden at lower tire pressures. Zipp’s low rolling resistance and high grip Tangente RT28 and RT25 Road Tubeless tires pair well with the Firecrest disc brake wheels. A new carbon fiber layup for the Indianapolis-made rims keeps weight low while maintaining the Firecrest Carbon Clincher’s proven durability. The robust 77D/177D hubset, paired with 24 Sapim CX-Sprint spokes front and rear, keeps the wheels stiff and responsive. To ensure compatibility with any bike, the versatile 77D/177D hubs come with swappable end caps to work with QR’s and thru-axles, including 12x100mm and 15x100mm front thru-axles as well as 12x142mm rear thru-axles. The 177D rear hub is also XDR driver body compatible for use with SRAM 10-42 cassettes. Each Wheel Includes: - Zipp Tangente Quick Release Skewer - Zipp Tubeless valve – factory installed - Tubeless rim tape – factory installed - Valve core removal tool - Zipp 77D/177D thru-axle caps to fit 12x100, 15x100 dropouts for front wheels, and 12x142 dropouts for rear wheels - Freehub body spacer – 11 to 10 speed - SRAM XDR driver body for 177D available separately
Zipp 202 Firecrest Carbon Clincher Tubeless Disc Brake 700c Rear
$1,350.00
The 202 Firecrest Carbon Clincher is a stiff, light weight and aerodynamic speed weapon ideal for every road. That's the power of Firecrest and Carbon Clincher technologies. The new 202 is the lightest entry in the Firecrest Carbon Clincher lineup, a do-it-all classic road wheel. This wheelset includes the 77/177 hubset. Firecrest rim technology affords the rider more speed, more stability, and more strength. This technology offers stable, predictable handling, and the wider rim increases lateral stiffness while offering greater vertical compliance Each Wheel Includes: - Zipp Tangente Quick Release Skewer - Zipp Tubeless valve – factory installed - Tubeless rim tape – factory installed - Valve core removal tool - Zipp 77D/177D thru-axle caps to fit 12x100, and 12x142 dropouts for rear wheels - Freehub body spacer – 11 to 10 speed - SRAM XDR driver body for 177D available separately
DT Swiss PR 1600 Spline 23 Rim Brake Front
$301.90
Comfort and speed combined. The PR 1600 SPLINE 23 work perfectly with the new breed of wider road tires. These bring about more comfort in the saddle and more grip even when the tarmac turns less and less smooth. The result is a faster, more relaxed ride. Together with the laterally stiff build which uses high end bladed spokes, the PR 1600 SPLINE 23 lets you tackle even the last climb of the day with enough energy to enjoy the looks of the hubs and to plan your next big ride.
Campagnolo Bora One 35 Clincher Wheelset
$2,525.00
Whether you're looking to take it to the limit on a climb or throw down in a sprint, Campagnolo's Bora One 35 wheels are where it's at. Their 35mm deep-dish carbon rims and aero spokes are exactly what you need to slice through the wind and move to the head of the pack. They're also feathery light to give you a boost when the road turns uphill. And, the aluminum hubs house USB hybrid ceramic bearings for a zippy ride. Plus, the Boras come with Campy's legendary quick-releases, too. - 35mm carbon rim means greatly reduced weight - Clincher version ensures easier bike maintenance and management - The rim has exactly the same structure as that of top-of-the-range wheels - The aluminum hubs and ceramic USB bearings ensure performance at a lower price - 35mm high rim gives this wheel good performance on long stretches on the flat where even the aerodynamic factor is important - All the Campagnolo knowhow in the field of carbon makes this wheel lightweight and perfect for longer steeper climbs - Number of spokes: 18 Front, 21 Rear - RDB – Rim Dynamic Balance - Bladed aerodynamic spokes - Stainless steel spokes - Ultralinear/DRSC geometry - Aluminum nipples - Weight: 1405 grams Included: - Special brake pad kit for carbon wheels (red compound): 40% better braking performance in wet conditions and 20% in dry. - New Quick Release wheels with a totally redesigned aerodynamic profile, lighter and with a shiny finish. - Valve extender
Shimano Dura-Ace R9100 C60 Carbon Clincher Wheelset 700c
$1,644.99
Shimano's Dura-Ace C60 carbon clincher wheelset provides improved rigidity thanks to a wide flange hub and offset rim so you can reach that next level of aerodynamic performance. - For the performance driven triathlete and road racer - Wide section rim - Ultra-light full carbon rim
Shimano Dura-Ace R9170 C40 Carbon Tubular Rear 700c
$1,304.99
The lightweight Dura-Ace C40 Carbon Tubular disc-brake wheel is the ultimate all-rounder. Yet, it’s still aero thanks to the wide rim you’ll see at the C40. This carbon wheel has an increase in rigidity for improved aerodynamic performance, while maintaining a comfortable riding experience. Its braking, handling and acceleration are top notch. - For the performance driven triathlete and road racer - Wide section rim - Ultra-light full carbon rim - Tubular-specific rims - Center-lock Disc - E-thru axles
Easton EA90 SL Disc Rear
$499.99
The disc brake road revolution has arrived. The EA90 SL Disc combines the stout 19.5-millimeter internal tubeless EA90 SL rim with Easton’s M1 6-bolt disc hubs that have received an A+ Future-Proof rating by Velonews. Hubs easily converts from out of the box 9x100 and 10x135 quick release to 15x100 & 12x100; parts sold separately. These wheels are light, fast and bombproof. Best of all, they rely on standard Sapim double-butted straight-pull spokes and straight-pull spokes and standard external alloy nipples, so they’re easy to maintain and service.
Zipp 404 Firecrest Carbon Clincher Rim-Brake Rear Wheel
$1,200.00
If you had to choose just one wheel, the 404 Firecrest Carbon Clincher should be your choice. With the depth and shape proven in all conditions, it’s the all-around performer and the standard by which all other wheels are measured. Its 58mm rim depth is a classic that has carried athletes to victory in every kind of event and situation – every triathlon distance, breakaways, field sprints, and hilly finishes. At the center of the 404 Firecrest is Zipp’s 77/177 hubset with best-in-class durability, bearing protection with no pre-load adjustment needed. The result is improved braking (Showstopper), aero performance, stiffness, durability, simplicity, and versatility. - New, faster, more stable rim profile - AeroBalance - ABLC SawTooth dimples pattern - Showstopper brake track - 10- or 11- speed compatible - XDR option - Handcrafted in the USA
Zipp 30 Course Disc Brake Rear Wheel (Clincher)
$555.00
Upgrade your road bike with Zipp’s 30 Course Disc wheels. Featuring stiff, light 26mm-deep Zipp aluminum rims, Zipp's precision 77D/177D disc hubs and Sapim's outstanding CX-Ray spokes, these hoops maximize your power transfer for superior acceleration, climbing and handling. They also boast a 25mm-wide tire bed for running wider tires to improve the ride even more and minimize pinch flats.
Campagnolo Shamal Ultra Disc Brake 2-Way Fit Tubeless Wheelset
$1,455.00
The Shamal wheel is already an industry reference point for high end aluminum wheelsets. Now for 2018 Campagnolo have taken their know how and expertise to introduce the new disc brake version. The result is a wheel already famous for its steering, smoothness and versatility that is now also available for those wanting a bike with disc brakes. - Weight: 1592 g MAIN BENEFITS Guaranteed quality and performance - This is the disc brake variant of the famous Shamal Ultra aluminum wheel - Flanges of the alloy hub and carbon fiber spacer in the front Redesigned specifically for disc brakes - Front hub axle HH 12/100 and rear HH12/142 floating axle. QR axles available as accessories - New “road” design of the flange: offering excellent integration with the AFS rotor, it improves transmission of the braking forces Versatile and distinctive - 2-Way Fit version: you can choose whether to use the clincher tire or the innovative tubeless / tubeless ready (using the sealant recommended by the tire manufacturer) - Its black self-locking anodized nipples add a touch of class and keep the spokes in place MAIN FEATURES - 2-WAY FIT VERSION (tubeless + clincher): it makes it possible for the cyclist to use the same rim to choose the best of the two worlds: traditional clincher tire or the innovative tubeless. - 17 mm INNER WIDTH RIM: it creates a perfect balance between weight and performance with 25 mm tires to achieve high levels of comfort. - DIFFERENT HEIGHT FOR THE FRONT RIM: The 27 mm profile on the front rim ensures the maximum rigidity on the point of contact of the nipples. The toroidal milling makes it possible to obtain a 25 mm height in the areas where no additional material is needed, reducing thus the weight and improving wheel rideability. - DIFFERENT HEIGHT FOR THE REAR RIM: the 30 mm profile on the rear rim ensures the maximum rigidity on the point of contact of the nipples. The toroidal milling makes it possible to obtain a 27 mm height in the areas where no additional material is needed, reducing thus the weight and improving the wheel response - FRONT WHEEL SPOKES: 14 aerodynamic aluminum spokes on the braking side and 7 aerodynamic aluminum spokes with a 2/1,6/2 mm section on the drivetrain side. - REAR WHEEL SPOKES: 7 aerodynamic aluminum spokes on the braking side and 14 aerodynamic aluminum spokes on the drivetrain side to ensure aerodynamics and response, transferring to the drivetrain side the braking torque generated on the disc. - ANODIZED SELF-LOCKING BLACK NIPPLES: the prevent the possible rotation of the spokes during the wheel life-cycle. - FRONT HH 12/100 AND REAR HH 12/142 FLOATING AXLE: only one specification to obtain the “Campagnolo performance” also in the transfer of forces to the frame. QR axles available as accessories. - USB (ULTRA SMOOTH BEARING): high quality ceramic bearings for a smooth and frictionless rolling. RING NUT WITH MICRO-ADJUSTMENT: it allows a precise adjustment of the hub. - ALUMINIUM SOLID BODY WITH MEGA-G3 SYSTEM IN THE REAR HUB: it ensures great efficiency in terms of aerodynamics and response thanks to the reinforced braking side to improve the resistance to the torque in the braking phase. - FRONT HUB ALLOY FLANGES AND CARBON FIBER SPACER: the result is a front wheel extremely light and robust. New “road” design of the flange: excellent integration with the AFS disc, it improves the transmission of the braking forces.
Zipp 303 Firecrest Carbon Clincher Rim-Brake Rear Wheel
$1,200.00
If perfection is the standard, then the 303 Firecrest Carbon Clincher wheelset delivers everything you could ask for, including a heritage forged in the Spring Classics. At the center of the 303 Firecrest Carbon Clincher is the 77/177 hubset, an innovation that results in improved aero performance, stiffness, braking, durability, simplicity, and versatility. The 303 Firecrest is light enough to climb up the steepest gradients with ease as a go-to all-around wheelset. - Improved 45mm rim profile – fast, stable, and versatile - ABLC Sawtooth dimple design helps manage airflow around the rim for a faster, more stable wheel - Industry leading Showstopper brake track: powerful and consistent braking, even on wet terrain - 77/177 hubset, reliable & durable, proven in the Spring Classics, no pre-load adjustment required - XDR driver body available for 1x setups - Sapim spokes & nipples - ISO 4210 compliant. See Declaration of Conformity for details
Zipp 202 Firecrest Carbon Clincher Wheels
$950.00 - $1,150.00
The Zipp 202 Firecrest Carbon Clincher retains a classic 32mm rim depth, but with a sturdier 25.4mm rim width for all-around use. This legendary climber's companion weighs just 1,450g, and features Sapim CX Sprint spokes to optimize torsional and lateral stiffness. Laced to the maintenance-free Zipp 77/177 hubset, you can count on best-in-class durability no matter where you decide to ride. Confident stopping power comes from a combination of heat-resistant resin used in the 202's construction and Tangente Platinum Pro Evoke brake pads that provide all-conditions reliability. Zipp includes an integrated valve extender with valve-core wrench, rim tape, and quick release.
Quality Wheels Formula 130mm Freehub / Alex Y2000 Silver 700c Rear
$57.00
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
DT Swiss ARC 1400 DICUT 62 Rim Brake Rear
$1,441.90
The ARC 1400 DICUT 62 is ideal for flat courses and gusty wind conditions. We developed it for aero stability, which adds to its versatility and makes it the category leader when it comes to low straight-line drag numbers while remaining easy to handle in windy situations. The ARC 1400 DICUT 62 combines SWISS SIDE's leading aerodynamic know-how with our unrivaled components technology.
Origin8 Track Attack 42mm Fixie Wheelset
$214.99
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!
DT Swiss CR 1400 DICUT 25 Front
$440.90
The CR 1400 DICUT 25 offers maximum off-road performance at an attractive price point. This high-end model in our cross road alloy wheel collection features the reliable Ratchet System technology inside a 240s-based hub for great efficiency. Combined with a strong and wide rim, these wheels offer the perfect blend of traction, comfort, and efficiency with tubeless cyclocross tires mounted.
ENVE SES 4.5 AR Disc Clincher ENVE Alloy Wheelset
$2,550.00
What It Is The SES 4.5 AR Disc is an uncompromising aero wheel designed specifically for disc brake-equipped bikes and large volume 28 – 30mm road tires. Who it's for Cyclists looking for more speed, comfort, and traction on all road surfaces will find the SES 4.5 AR Disc a game-changer. Why we made it The introduction of road frames with disc brakes and increased tire clearance has allowed us to take an unconventional approach to wheel design. The result is a wheel that brings new levels of confidence and performance to the road cycling experience. Full Details Rebellious, unconventional, and pioneering are words that describe the one-of-its-kind SES 4.5 AR Disc. Conceptualized for the cobbles of Paris-Roubaix through our partnership with Team Dimension Data, the SES 4.5 AR Disc was developed to deliver top-shelf aero performance, stability, and comfort for virtually any road surface. The SES 4.5 AR Disc borrows from ENVE's M Series carbon mountain wheel tubeless technology and features hookless beads. Hookless beads improve aerodynamic performance by aiding airflow from tire to rim as well as allow for the best tubeless tire performance possible. Like all Smart ENVE System aero wheels, the front and rear rims are specifically designed for the airflow seen at the front and back of the bike. As such, the front rim is shallower and wider to maximize stability in crosswinds, while the rear is deeper and narrower to aid in drag reduction. In addition to dissimilar geometries, the SES 4.5 AR Disc features a disc brake-specific construction that saves weight, improves strength, and creates an unprecedented ride quality.
ENVE SES 3.4 Clincher ENVE Alloy Hub Wheelset
$2,550.00
What It Is A climbing wheel with an aero advantage designed to be ridden in the mountains. Who it's for Road cyclists who require maximum versatility for riding in mountainous terrain and variable weather conditions. Why we made it Since the introduction of the original SES 3.4, we’ve implemented new design concepts across the SES lineup that result in a faster wheel and improved ride experience. The SES 3.4 features road tubeless compatibility, 25mm tire optimization, molded carbon brake track technology, and optimized SES aero rim shaping to ensure maximum efficiencies for a shallow aero wheel. Equally at home in the mountains as in the valleys, the SES 3.4 is the most versatile Smart ENVE System aero wheel. Like all SES wheel models, the SES 3.4 features dissimilar rim shapes and geometries between the front and back wheels to maximize aerodynamic efficiency and rideability in variable wind and weather conditions. The front rim is 38mm deep and shallower than the rear rim to aid in crosswind stability while rear rim is 42mm deep and therefore improves overall airflow. For riding in mountainous terrain where heavy braking is required, the SES 3.4 features a high-temperature-resistant resin system and ENVE's molded-in brake track technology to ensure rim integrity and precision braking when and where it is needed most.
Campagnolo Scirocco Wheelset
$585.00
A new 35 mm high profile that makes the new Scirocco aluminum wheel unique. Aerodynamic yet easy to handle, responsive and lightweight yet with all the advantages of a clincher wheel with aluminum braking track. They are suitable for any kind of route. The Scirocco meets the needs of amateurs and "granfondo" fans, while giving heaps of rigidity when you have to get out of the saddle and sprint. - New 35mm aluminum profile guarantees better aerodynamic penetration - Grooves on the rim ensure low weight - Spokes stay in place thanks to the anti-spoke rotation technology system - MEGA G3 technology on the cassette side increases torsional stiffness - Hub in aluminum - Aluminum axles and nipples
Ritchey WCS Zeta Disc Wheels
$800.00
The do-everything aluminum race wheel is wider, lighter and stiffer than ever-and now available in a tubeless disc brake version. Tom Ritchey believes in high quality aluminum road wheels—they offer incredible performance and durability that's hard to beat at any price. The critically acclaimed Zeta is completely redesigned to be wider, lighter and laterally stiffer, yet still tough enough to endure gravel road rides and cyclocross races that would chew lesser wheels to pieces. New dedicated disc brake version features new two-piece forged hubs and disc-only OCR rim extrusion. - Rims: WCS Zeta Tubeless OCR - Proprietary Ritchey extrusion balances ride quality and aerodynamics - Rear OCR (Off Center Rim) design reduces wheel dish to balance spoke tension for a stronger, stiffer wheel - Hubs: WCS Disc w/9mm standard QR - Spokes: DT Competition 2.0/1.8 DB - Nipples: Brass - Build: 24/2x - Freehub: alloy - Centerlock compatible - BB black finish - Convertible between standard QR and thru-axle (F: 12 or 15mm) - Freehub options: Shimano or SRAM XD - 735g front - 825g rear
Mavic Ksyrium Elite UST Front
$328.95 - $330.00
The Ksyrium Elite road wheel has been a benchmark for reliability, light weight and versatility for more than a decade. This updated version makes it easier than ever to experience the benefits of riding tubeless. Integrated with Mavic's Yksion Pro UST Tubeless tires, the system makes installation, removal and maintenance simple and hassle-free. Eliminating the tube reduces friction in the system, which means less rolling resistance and higher speeds. You can also lower your tire pressure, which gives you a smoother, more comfortable ride plus added control on rough roads. You’ll also enjoy a reduced risk of punctures, so you can ride with confidence and push yourself farther. The rims are engineered with Mavic's patented Fore Drilling to form a stronger connection between the spokes and the rim. Isopulse lacing improves stability and boosts lateral stiffness while sprinting or climbing. Mavic's exclusive patented ISM 4D process strategically removes excess material from the rim while maintaining it around the spokes, where tension is applied. The wheel is available in three color options: gray on black; black with red highlights; and black with yellow highlights.
Quality Wheels Shimano Deore M610 / Alex ACE19 700c Rear
$95.00 - $100.00
The standard in basic mid-range hybrid repair wheels.
DT Swiss ARC 1100 Dicut 48 Disc Rear Wheel
$1,330.00 - $1,843.00
The punchers wheel: The medium-profile aero rim, partly bladed spokes, and lightweight build make it easy to flow with the pack and launch your punchy attack when the time is right. Even in the harshest weather conditions the ARC 1100 DICUT 48 will lead you rapidly to the line. Combining carbon know-how with SWISS SIDEs leading aero knowledge, this wheel epitomizes lightweight and low drag. The aero hub design, featuring straight pull nail-head spokes and SINC ceramic bearings, make it stiff and smooth rolling — just right to surprise the lead-out train.
DT Swiss PR 1600 Spline 23 Rear Rim Brake
$315.00 - $420.00
Comfort and speed combined. The PR 1600 SPLINE 23 work perfectly with the new breed of wider road tires. These bring about more comfort in the saddle and more grip even when the tarmac turns less and less smooth. The result is a faster, more relaxed ride. Together with the laterally stiff build which uses high end bladed spokes, the PR 1600 SPLINE 23 lets you tackle even the last climb of the day with enough energy to enjoy the looks of the hubs and to plan your next big ride.
DT Swiss PR 1600 Spline 32 Rear Rim Brake
$315.00 - $420.00
The PR 1600 SPLINE 32 is characterized by its super stiff yet lightweight medium-profile aluminum rim. The use of the PHR nipple system allows a very low weight. Stiffness is generated via the big cross-section and thanks to the 18mm internal width and the tubeless-ready design, it is ideally equipped for the use of modern road bike tires. The PR 1600 SPLINE 32 is a wheel that excels on any terrain, transfers every bit of energy into forward momentum, and takes every corner with Swiss precision.
DT Swiss PRC 1400 Spline 35 Front Rim Brake
$1,079.00 - $1,501.00
Unsure what will happen on your group ride? Mountains, hills, or flat sections? Water from below, water from above? You needn't worry — the PRC 1400 SPLINE 35 has it covered. High-end bladed straight pull spokes and the most reliable and lightweight freewheel system make for an efficient ride. Offering the perfect blend of comfort, grip, and low weight in combination with a higher volume tire, the wide and stiff full carbon rims accelerate with the best of them.
DT Swiss ARC 1100 Dicut 62 Disc
$1,330.00 - $1,843.00
Aero meets All-around: The ARC 1100 DICUT 62 is ridden by DT athletes in long distance triathlons, as well as in flat stages of the Tour de France. Adding to it's versatility is the Aero+ concept: It is the category leader when it comes to low drag numbers but at the same time it is easy to handle in every wind situation. Hubs equipped with SINC ceramic bearings and ultra-lightweight components throughout are there to make you roll smooth and fast, no matter if you're fighting against the wind on your time trial bike or trying to escape the bunch on the final meters to the line.
DT Swiss ERC 1400 Spline 47
$1,092.00 - $1,514.00
Our benchmark setting Aero+ rim matched to a punchy mix of top end aerolite and laced to premium Ratchet System hubs makes for a wheel that delivers in all riding situations. Fitting 28 mm tires on its wide rims will give you all the comfort and grip needed for extended rides on mixed surfaces. At the same time, in combination with 25 mm rubber, the ERC 1400 SPLINE with will aero optimize your race bike, ready for you to set your own, new benchmarks.
Zipp 30 Course Disc Brake Front Wheel (Tubular)
$445.00
Upgrade your road bike with Zipp’s 30 Course Disc wheels. Featuring stiff, light 26mm-deep Zipp aluminum rims, Zipp's precision 77D/177D disc hubs and Sapim's outstanding CX-Ray spokes, these hoops maximize your power transfer for superior acceleration, climbing and handling. They also boast a 25mm-wide tire bed for running wider tires to improve the ride even more.