Balancing aerodynamics, weight, and affordability, the new Ultegra R8170 C50 wheelset is sure to inspire action on your group ride with its all-new tubeless carbon rim and updated, 11 and 12-speed compatible hub. Summiting climbs, carving descents, or cruising the flats, the new C50 is the jack of all trades among the new Ultegra R8170 wheel line up. The tubeless, carbon rim features a 21 mm internal width that pairs nicely with wider, modern tires while the Hyperglide cassette body is compatible with 11 and 12-speed cassettes.WH-R8170 TL carbon clincher disc brake designed to meet pro road race criteriaLightweight clincher full carbon 50 mm deep rim for improved aerodynamics, increased rigidity and excellent inertia for sprinters and TT specialistsEasy to use Centre Lock rotor mount for use with disc brakesStainless steel butted (2.0-1.8-2.0) and bladed straight pull spokes for optimal balance and rigidityElbow-less spokes make for a strong yet compliant wheelHigh lateral rigidity is produced with a wide flange spacingLabyrinth double-contact sealing effectively shuts out water and dirtAlloy cone with integrated steel Borozon treated bearing races - super mirror finish reduces frictionCold forged, machined aluminium hub shell and oversized 7075 alloy axle keep the wheel weight to a minimumFor 100 x 12 mm axle700C clincher compatible
Zipp 303 S Carbon Disc Rear Road WheelTaking its design from the higher-spec Firecrest 303 model, this rear wheel is ideal for modern "go anywhere" road bikes. Zipp has also updated this model with a wider rim to improve rider comfort, handling and aerodynamics. Expanding greatly on its heritage of conquering the Spring Classics, this 303 wheel maintains its ideal-for-every-terrain 45mm rim depth. However, this model adds a significantly wider internal width to provide greater performance and ride quality in almost every measurable way. Road bikes are more versatile than ever no matter the road surface, but just as fast as before. The 303 S offers an entirely new rim profile and design to optimise rider performance on this new breed of bike. This wheelset is tubeless compatible and designed for disc-brake bikes, allowing the ability to run wide tires at lower pressures for race-ready speed on or off the tarmac.45mm Deep Rear WheelThe 303 S is among Zipp's lightest wheels, optimised for top aero performance with a 28mm tyre but capable of handling gravel tyres up to 50mm wide. The key innovation is in the 303 S's rim design. Its 45mm rim depth is the same as its predecessor, the 302 Disc brake. But its external rim width is 2mm wider, at 27mm, and its tyre bed is a full 7mm wider, at 23mm internal width. That rim platform is designed to be the fastest with a 28mm tyre. The wide rim optimises tyre profile to allow lower tyre pressure. That helps to reduce rolling resistance and provides a more compliant ride. The result of all this is a 10 watt savings vs. a top peer wheel in total power required to ride 40kph on a flat road with a 28mm tyre, according to internal Zipp testing.This ground-breaking wheel also features all-new cosmetics, setting the rider apart from the pack, and comes at a very attractive price.Please Note: Shimano/SRAM freehub option is for 11 speed Shimano/SRAM XD cassettes. The SRAM XDR freehub option is for 12 speed SRAM XD road cassettes.Features: Rim Material: Carbon Fibre with updated Zipp graphics Brake Compatibility: Disc (centre lock) Rim Inside Width: 23mm Rim Profile: Symmetrical Rim Type: Clincher Rim Finish: UB Fibre / Bake-on Labels / Matte Clear Coat Spoke Type: CX-Sprint Spoke Count: 24 Spoke Pattern: 2-cross Nipple Material: Brass Axle Type: TA 12x142mm Bearing Type: Cartridge - Stainless Steel Driver Mechanism: 3 pawls leaf spring Tubeless Ready: Yes Hub: 176 DB hub with centre locking interface Single or Pair: Single Brake Compatibility: Disc brake Weight: 819gBuy Zipp Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano Dura-Ace R9100 11 Speed Road Double ChainsetThe Shimano Dura-Ace R9100 11 Speed Road Double Chainset boasts Shimano's well-known 4-arm hollow spider that is constructed from hollow-forged aluminium. This chainset has been completely redesigned to ensure it boasts the best combination of lightweight and rigid construction. The chainset has been adapted by Shimano to work with disc brake road bikes that have a 135mm rear hub spacing and shorter chainstays without the need to increase Q-factor thanks to its wider chainring spacing. Although the crank arms and spider arms are bigger, this increases overall stiffness, and the chainset has dropped 7g of weight since its previous edition.The Double version offered here comes in numerous gear combinations to best suit each individual riders needs.Please note: A bottom bracket is NOT included.Features:Enhanced design saves 7g while maintaining rigidityIconic 4-arm construction maintains high rigidity and reduces weightOptimised crank arm design strengthens key stress zonesNew chainring tooth profile is adapted for race bike specific disc brake systemsAccommodates shorter chainstays (410mm) with 135mm OLD rear spacingHollowglide chainring construction maintains smooth shifting whilst reducing weight and increasing stiffnessWeight: 621g (53.39T)A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Shamal Ultra C17 Rear Road WheelThe new Shamal Ultra C17 continues the legendary performance this model has held for over 20 years. It's the first top for many top-end competitive cyclists in all areas of the sport. This version pushes performance further thanks to the increase in design and technology Campagnolo is known for.Optimised Rim ProfileThis version of the Shamal Ultra features the new C17 rim profile to ensure a better rim to tyre interface, which in turn improves performance. This performance boost is especially noticeable when using 25 and 28c road tyres - the modern standard. To maintain this wheel exceptional reactivity and momentum it has been equipped with USB Ceramic, sealed cartridge bearing, which although reducing weight, also greatly improve rolling performance and smoothness. Ceramic ball bearings have a high corrosion resistance, meaning wheel maintenance is rarely required.Podium Proven PerformanceThis wheel features the Campagnolo iconic, performance enhancing Mega-G3 spoke lacing pattern. This spoke pattern improves energy between the rider and the road, which reduces stresses on the drive side (right side) of the wheel while increasing the rigidity of the wheel overall at the same time. This significant performance enhancement is achieved by the drive side of the rear wheels having twice as many spokes as the non-drive side (left side).Hand Built and Fine-TunedCampagnolo wheels are hand built entirely by specialist Campagnolo wheel builders and are fine-tuned and checked precisely with electronic tools. The ensures that every wheel delivers the high-performance output that Campagnolo wheels are known for.Features: Material: Rim: Aluminium; Hub: Carbon, Aluminium Rim Internal Width: 17mm Rim External Width: 22mm Rim Profile: Differentiated, 27/30mm Hub Spacing: 130mm Spoke Count: 21 Spoke Lacing: G3 Bearings: USB, Cup and Cone Freehub: 10, 11-SpeedBuy Campagnolo Wheels & Tyres from Chain Reaction Cycles. Ride. Eat. Sleep. Repeat.
DT Swiss PR 1400 Dicut Oxic Rear Road Wheel 32mmReady for road racing, this rear wheel gives a supportive and dependable performance on every outing. With 18mm internal width and a 32mm height, the rim on this road wheel delivers impressive balance and stability as you take on every road riding situation. The alloy build remains strong and stiff when riding at high speeds with the tubeless-ready profile minimising the weight of the wheel for improved aerodynamics.Features: Rim Material: Aluminium Rim Dimensions: Internal Rim Width: 18mm; External Rim Width: 21mm Rim Height: 32mm Spokes: DT Aero Comp Wide straightpull with DT ProLock Squorx Prohead aluminium nipples, 2-cross lacing Hub Type: DT240 Hub Axle Type: 100x5mm QR Freehub: Ratchet System 36, Shimano 11-speed Tubeless-Ready: Yes Brake Standard: Rim Brake Recommended Maximum Weight: 130kg Includes: RWS Titan, Tubeless tape 21mm, SRAM XDR Road freehub body kit, Swissstop BXP, tubeless valve and refill kitBuy DT Swiss Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano 105 R7020 Road GroupsetEnhanced with the same advanced technologies as seen on Shimano’s Dura-Ace and Ultegra models, this rim brake version of the updated 105 11 speed groupset will instantly improve your road riding experience. It’s an ideal choice when building a custom road bike or upgrading your bike’s tired components.The outstanding ergonomics and technologies of the 105 R7020 Road Groupset from Shimano makes your rides unforgettable. This slick perfoming groupset is ready for long hard days in the saddle and is packed with some of the finest Shimano components around.(Please Note: The brakes within this groupset are set up to European standards with the left-hand lever operating the front brake and the right-hand lever operating the rear brake. For UK customers and other parts of the World, you will need to disconnect the brake hoses and swap them over.)Included: 2x Shimano ST-R7020 Levers (gear and brake cables included) 2x Shimano 105 R7000 Rim Brake Calipers 1x Shimano FC-R7000 Chainset, 50/34T 1x Shimano FD-R7000-L Front Derailleur (Braze-on type, downswing 1x Shimano RD-R7000 Rear Derailleur 1x Shimano R7000 11-Speed Cassette, 11-30T (Shimano 9-11-Speed freehub compatibility) 1x KMC X11 11-Speed chain 1x Shimano BB-SM-BB72-41 Pressfit Bottom Bracket Includes all Shimano SP41 outer cables, brake inner cables and gear cablesShimano 105 R7020 Levers Including Flat Mount CalipersThese superb 11 speed shifters offer great ergonomics trickled-down from the Ultegra range, so you can shift to the right gear at the right time while maintaining your momentum. They offer excellent reach adjustment and a redesigned internal shifting unit for simple and effective operation. Additionally, you'll benefit from greater rider control in all conditions plus intuitive and quick shifting operation. Furthermore, these offer the same light shifting operation as top tier systems thanks to trickle-down technology.Features: Material: Resin and Steel Shifter Type: Dual Control lever Speed: 11-Speed Use: Road Hose Joint: Straight Included: Shimano RT70 brake rotors (140mm and 160mm) Brakes come fully assembled and pre-bled ready for installation Weight: 610g (pair)Shimano FC-R7000 ChainsetThis smooth crankset balances weight and efficiency without sacrificing stiffness, so you can maintain the edge over your competitors. Furthermore, its rider-tuned performance with numerous gear combinations means you'll be able to climb and descend with ease. Its wider gear pitch increases chain clearance with small gearings and allows for 410mm chainstays. You'll benefit from optimum power transfer and great frame compatibility for fast and precise pedal stroke performance.Features: Chainline: 43.5mm Technology: Hollowtech II Gear Arm: 4-arm BCD: 110mm Speed: 11-Speed Q Factor: 146mm Included: Shimano BB-R60 Bottom BracketShimano FD-R7000 Front DerailleurThis top-quality front derailleur features a natural stroke feeling and a wind-cutting ergonomic power curve, allowing you to comfortably shift. Its integrated cable tension adjustment and shorter rear centre (410mm) allows for accurate and simple front mech adjustment. You'll benefit from lighter front shifting operation and its optimised cage design for rim brake road bikes.Features: Action: Down Swing Chainline: 43.5mm Chain Stay Angle: 61-66° Link Bushings: 7 Mount: Braze-On Speed: 2x11-Speed Top Gear Teeth: 46-53T Total Capacity: 16T Weight: 95g (approx)Shimano RD-R7000 Rear DerailleurThis direct-mount 11 speed compatible rear mech features a high-quality Shimano Shadow RD spring for secure shifting performance and wide compatibility. It's intended for rowdier riding styles and it's super low profile design carries many benefits. Furthermore, its low profile and single tension construction mean the rear mech doesn't hit the chainstay in rough riding conditions allowing for smooth and silent performance.Features: Fluoric Coated Link Bushings: 2 Low Sprocket Max: 34T Low Sprocket Min: 30T Max Front Difference: 16T Speed: 11-Speed Spring Type: Shimano Shadow RD Top Sprocket Max: 12T Top Sprocket Min: 11T Total Capacity: 39T Weight: 232g (approx)Shimano R7000 11 Speed CassetteThis fast and reliable 11 speed cassette is ideal for getting you up to speed in a flash thanks to its top-performance rider tuned gearing. Its sprockets make shifting easier than before with their precise profile spacing which offers a flawless and instant experience, making it ideal for keeping the edge over any competition. It's perfect for both club riding and racing.Features: Material: Sprockets: Steel, Nickel Plated; Spider: Aluminium Type: HG-EV Speed: 11-Speed Spider Arm: 1 Lightweight Rider tuned gearing High performanceKMC X11 11 Speed ChainThis high performance 11 speed chain is specifically designed for the demands of modern road cycling. This model uses its half nickel-plated outer plates to ensure smooth and dependable performance. KMC has also developed this version for extreme durability.Features: Use: Road, Mountain Bike (MTB) Speed: 11-Speed Size: 1/2" x 11/128" Pin Length: 5.5mm Quick Link Included: Yes Number of Links: 120 Hi-Performance Half Nickel plated Extremely durable Weight: 266gBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano Dura Ace R9100 Power Meter 11sp CranksetSetting a new standard in road cycling data collection, this superb crankset features a tough alloy construction which makes it immensely robust as you pedal. Coming equipped with a revised design, this superb version delivers an iconic appearance which is adapted for race-specific disc brake systems while still offering a wide gearing ratio. Bluetooth and ANT+ ConnectivityDesigned for ease of use, this stunning version is kitted out with both Bluetooth and ANT+ connectivity. This allows you to easily pair it with your smartphone and favourite apps to view your performance data and results.Rechargeable Waterproof Power MeterEngineered for all-weather conditions, this sleek model is equipped with a waterproof finish which means you can enjoy accurate data results in the wettest of riding conditions. With an integrated rechargeable battery at its heart, you'll benefit from up to 300+ hours of pedalling precision. This means you can spend less time waiting for it to charge and more time enjoying the ride. Features: Material: Alloy Use: Road BCD: 96mm Speed: 11 speed Connectivity: Bluetooth and ANT+ Battery: Integrated rechargeable Li-on battery Battery Life: 300+ hours Update: Wireless firmware update systemA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Token G23AR Alloy Gravel Disc WheelsetA go-anywhere wheelset for the versatile road rider, this Prime pairing by Token is durably built to tackle any gravel and adventure terrain you wish to test it on. Taking the best elements of Token's V23 wheels, this G23AR set is lighter and more robust than its hard-riding predecessors. Measuring a 23mm internal width, a balanced performance and consistent roll is assured on every venturesome ride. Alloy-Rimmed All Road Wheelset Kitted out with friction-reducing D1 hubs, these rampant wheels make the most of their premium bearings to give a comfortable and composed experience, however hard you push them. The rear hub houses a Shimano 10/11-speed-compatible freehub to give an extra burst of speed and power when needed, while the tubeless-ready profile lets you ride with enhanced control when fitted with lower inflation tyres. Firmly-set Pillar spokes enhance the structural integrity of each wheel, with the disc brake optimisation ensuring a superior stopping performance on every journey. Durable and dependable, the Token Prime G23AR Disc Gravel Alloy Wheelset is a top choice for every all-road exertion. Features: Rim Material: Alloy Rim Type: Clincher Internal Rim Width: 23mm External Rim Width: 28mm Rim Height: 22.5mm Spokes: 24x Pillar PDB1416 Straight, 2-cross lacing (Front and Rear) Hub Type: D1 Hub Bearings: Premium, Front: 2; Rear: 4 Freehub: Shimano 10/11-speed Tubeless-Ready: Yes Brake Type: Disc BrakeBuy Token Wheels & Tyresfrom Chain Reaction Cycles, the World's Largest Online Bike Store.
Mavic Crossmax XLS Mountain Bike WheelsetComing equipped with a robust aluminium maxtal rim construction, a 30mm wide inner rim width and tapeless tubeless technology, this mountain bike (MTB) wheelset is well-equipped for the challenges of trail-riding. Its asymmetrical aluminium maxtal rim construction makes it super-strong on the most demanding of terrain conditions. In addition, its 30mm wide inner width is specifically optimised for lower tyre pressures, so you can benefit from a smoother experience with increased traction and control. Mavic has also kitted it out with its most user-friendly tubeless system yet that doesn't require any tape to set up tubeless tyres.Tubeless-Ready Alloy MTB WheelsetThis trail-ready wheelset's rims are engineered with Mavic's patented Fore technology, featuring a fully sealed upper bridge that eliminates the need for rim tape. This saves 30 grams per wheel and does away with the hassle of using tape to set up tubeless tyres. Mavic has also put this model through its ISM rim machining process, which removes material in strategic areas of the rim to minimise weight, without compromising strength. The rim has a 30mm internal width, optimised to squeeze the best performance out of any modern trail tyre, and Mavic's Black Shield technology gives them a distinctive finish that protects against scratches and abrasions. Straight-Pull Spokes and Infinity HubsMavic has equipped this MTB wheelset with 24 straight-pull spokes to further dial in the sweet spot between lateral stiffness and vertical compliance. In addition, its Infinity hubs feature a stiffer and lighter construction that is enhanced by the ultra-reliable ID360 double ratchet system for fast engagement. Only available in 29” sizing, it comes complete with UST tubeless valves, spare spokes and accessories, so you'll have everything you need to conquer your local trails.Features: Rim Material: S6000 Aluminum Maxtal, Asymmetrical rim design Finish: Black Shield treatment (protects against impacts and scratches) Spoke Material: Steel Use: MTB Internal Rim Width: 30mm ETRTO: 622x30TC Tubeless Ready: Yes, UST tubeless technology Brake Type: Disc, 6-bolt mount Recommended Tyre Sizes: 60mm to 76mm (2.35" to 3.0") Rim Technologies: SUP welding technology and Fore tapeless tubeless technology Front Axle: 15x110 Boost thru-axle Rear Axle: 12x148 Boost thru-axle Freewheel: Multiple options available to select from the drop-down menu Hub Technologies: Instant Drive 360 freewheel technology, QRM Auto bearing preload technology Spoke Count: Front and Rear: 24 Spoke Lacing: Front and Rear: Crossed 2, contactless Spoke Nipples: Fore integrated Aluminium ASTM Category 4: Enduro and trail-riding Included: Fore adjustment wrench, 2x replacement spokes with each wheel, multi-function adjustment wrench (delivered with rear wheel). UST valve and accessories Max Rider Weight: 120kg (including bike) Weight: Pair: 29": 1790g (Front: 830g; Rear: 960g)Manufacturer's Part Numbers:LP1618100 Black 29" Shimano (Crossmax XLS 29 Pr Bst*) LP1619100 Black 29" SRAM XD (Crossmax XLS 29 Pr Bst XD*)Buy Mavic Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Reynolds Black Label Wide Trail 347 WheelsetReady for technical, fast and fun mountain bike (MTB) trail-riding, this high-quality wheelset offers dependable performance wherever your ride takes you. It features two asymmetric carbon fibre rims, which provide a stronger wheel through more even spoke tension. Thanks to its carbon fibre build, riders will also enjoy increased stiffness and durability when climbing, without any unnecessary weight holding them back when roaring down the trail. Reynolds has also equipped this version with a Super Boost axle standard, which gives you wider flange spacing for an increased spoke angle and greater spoke tension balance. Tubeless-Ready MTB Wheelset with Hookless Rim ProfileEngineered for whatever the trails have to offer, this MTB wheelset is kitted out with a tubeless-ready, hookless rim profile for a no-burp tyre fit and easy inflation. Thanks to its tubeless-ready technology, riders will also enjoy tubeless benefits such as lower rolling resistance, improved traction and fewer chances of flats or punctures. Black Label mountain wheels combine Reynolds' asymmetric, hookless MR5 carbon fibre rims and Industry Nine Hydra hubs to set the bar in mountain bike wheel performance. The rim design features a perfect balance of width, depth, and layup for wheels that provide ultimate durability, riding comfort, and trail hugging traction like you've never experienced before.- Asymmetric rim profile provides a stronger wheel through more even spoke tension- Tubeless-ready, hookless rim profile for a no-burp tyre fit and ease of inflation- Precision manufactured Industry Nine Hydra that offers a revolutionary, .52 degrees of engagement and durability you can trust- Sapim CX-Ray spokes provide the ultimate combination of vertical strength and lateral compliance on Black Label enduro, trail and plus models- Lifetime warrantyFeatures: Rim Material: Asymmetric, hookless MR5 Carbon Fibre Axle Size: Front: 15x110mm; Rear: 12x157mm Use: MTB Rim Width: Inner: 34mm; Outer: 39mm Rim Depth: 25mm Freehub Type: Multiple options available to select separately Tubeless Ready: Yes, tubeless-ready, hookless rim profile Spoke Type: Sapim CX-Ray Spoke Count: Front: 28; Rear: 28 Spoke Pattern: Front: 3x; Rear: 3x Hub: Front: i9 Hydra; Rear: i9 Hydra Nipple: External Alloy Engagement: .52° Pawl: 6 Brake Compatibility: Centre Lock disc brake Included: 2x45mm Tubeless Valve Stems, 22mm Tubeless Tape installed and Reynolds Owner's Manual Wheel Size: 27.5" Single or Pair: Pair Weight: 1655g (pair)Manufacturer's Part Number: R-WC-79527 Black 27.5" Shimano Microspline R-WC-79536 Black 27.5" Shimano R-WC-79537 Black 27.5" SRAM XDBuy Reynolds Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Zipp 808 NSW Carbon Tubeless Rear WheelZipp's 808 NSW Tubeless rim-brake rear wheel features a rim shape that aerodynamically integrates wider tubeless tyres for a new era of high-performance road cycling at the brand's deepest rim depth, 82mm. The 808 NSW Tubeless allows you to run tubeless or traditional clinchers. The benefits of tubeless include superior flat protection, the ability to run lower pressures, and a smoother ride with a high cornering grip and low rolling resistance. The 808 NSW Tubeless' 19mm internal rim width and corresponding outer rim shape are optimised for aerodynamic optimisation with 25mm tyres. Zipp's wheel cosmetics gives this rear wheel a perfect pairing of speed and style.CognitionThe ultimate in Zipp hub technology. Every time a conventional hub set starts to coast, friction within the freehub ratchet mechanism works like a drum brake to slow the rider down. The drag between hub shell and driver body during coasting is considered an efficiency loss, especially for road wheels. High drag also can significantly contribute to chain-dropping issues. The drag torque drives the cassette clockwise so the chain gets loose on the load side. The solution? The rear Cognition hub with AxialClutch technology reduces drag by disengaging the ratchet mechanism when coasting. It then uses magnets to re-engage once the rider starts pedalling.ShowstopperZipp's industry leading Showstopper brake track continues to evolve and improve, providing unmatched stopping power and modulation regardless of weather conditions or the length of the descent. Showstopper is a complimenting pairing of a directional, moulded-in, texture with silicon carbide particles suspended in the surface resin. The current media blast process applied to all Zipp rims increases the surface roughness of the brake track providing the rider with consistent and responsive braking.Hexfin Aerodynamic Boundary Layer Control (ABLC)The Sawtooth dimple design consists of 12 nodes that are specifically clocked to start aerodynamic shearing at a rate of 50hz at a rider speed of 20mph. Sawtooth accomplishes this by inducing small sheet vortices that shed at a low magnitude, but at a higher natural frequency, thus decreasing the laminar bubble effect on the aerodynamically shielded side of the rim's profile to further reduce high yaw drag and improve crosswind stability.ImPressZipp's ImPress graphics technology prints graphics directly on the wheel, which allows the dimples to do what they were designed to achieve, to control vortex shedding and the rate at which air sheds off the wheel. Managing this is crucial to stability. ImPress graphics also give NSW a distinctive stealthy look.Features: Rim Material: Carbon with UD Fibre Finish and Impress Technology Use: Road Axle Type: QR 130mm (quick release) Internal Rim Width: 19mm Rim Depth: 82mm Rim Profile: Symmetrical Brake Compatibility: Rim Brake Size: 700c Tyre Compatibility: Clincher, Tubeless Ready Surface Texture: ABLC SawTooth Nipple Material: Aluminium Nipple Anti-rotation: Sapim Secure-loc Spoke Type: CX-Ray - Black Spoke Count: 24 Spoke Pattern: 2 cross Hub: Cognition Axle Material: Aluminium Bearings: Cartridge, Stainless Steel Driver Mechanism: Axial Clutch Driver Body Material: Aluminium Max Tyre Pressure: 125psi Max Recommended Rider Weight: 250lbs Single or Pair: Single rear wheel Weight: 982g (approx)Technologies: New graphics that scream speed, applied using Zipp's ImPress direct-print technology to help allow the dimples to do what they were designed to do - improve aero performance. An all-out aero 82mm rim profile that's tubeless ready for increased speed and better cornering, control , and comfort. Cognition hubset with Axial Clutch technology provides reduced drag when coasting. ABLC Sawtooth dimple design helps manage air flow around the rim, and contributes to create a faster, more stable wheel. Industry-leading Showstopper brake track: powerful and consistent braking, even on the wet. Ships with QR end caps, quick release skewers. Campagnolo driver body sold separately. Manufacturer's Part Number: ZPWH8536000 Black 700c Shimano/SRAM ZPWH8536001 Black 700c SRAM XD SRAM XDRBuy Zipp Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.