Specification:Orientation (wheels): Front,Size (wheels): 700c,Rim construction: Carbon,Tire compatibility: Clincher Tubeless Ready,Rim depth: 45mm,Surface texture: ABLC Dimples,Brake compatibility: Rim,Rim - inside width: 19mm,Rim profile: Symmetrical,Rim finish: UD fiber, adhesive decals,Color (Decal): Standard,Nipple material: Aluminum,Nipple anti-rotation: Sapim Secure-Loc,Spoke type: CX-Sprint,Spoke count: 18,Spoke pattern: Radial,Hub: ZR1 Rim Brake,Driver body type: n/a,Color (hub): Black,Axle type (Wheels): QR 100 Caps (dia. 19mm),Axle material: Aluminum front & rear,Bearings: Cartridge - Stainless Steel,Driver Mechanism: 6 Pawls Leaf Spring,Driver body material: n/a,Max tire pressure: 125psi,Max recommended rider weight: 250lbs.
Zipp’s 303 Firecrest Carbon Clincher is an all-around wheelset in every way. It’s rich in heritage yet loaded with innovations. It’s as adept in the mountains as it is on rolling hills, windswept farm lanes, or ferocious field sprints. At Zipp, we never rest on laurels. Our engineers can’t sit still long enough to – they’re too busy innovating. Think lighter weight. Think greater speed and control. Think increased stopping power. One of our all-time best-selling wheelsets, the 303 Firecrest Carbon Clincher offers dramatic improvements over its predecessors: More Speed: Revised rim profile for reduced aerodynamic drag developed by our advanced development team in Indianapolis, Indiana, USA. Greater AeroBalance™: ABLC™ Sawtooth™ Technology, a complex dimpling pattern first developed for our top-level NSW wheel lineup. This technology helps to achieve the optimization of low aerodynamic drag and crosswind stability, which we call AeroBalance. Better braking: Zipp’s ShowStopper™ textured braking surface delivers unrivalled rim braking performance in wet or dry conditions. Lighter Weight: The 303 Firecrest Carbon Clincher is 145 grams lighter than its previous iteration.
Zipp 303 Firecrest Front Clincher Disc WheelTake out any terrain with confidence with the 303 Firecrest V1 Carbon Clincher DB Front Wheel from Zipp. Their carbon design is enormously durable and reliable, while Firecrest technology within the rims adds greater aero performance and sprinting stiffness in the face of intense crosswinds. Zipp’s wheels are also surprisingly lightweight, which means they’re enormously responsive and precise in their handling, fast in their acceleration and ideal for handling trickier downhill sections.Quick-release skewers mean more leverage for opening and closing, a wide brake track delivers improved braking performance and the clincher tyre keeps a stable shape without reducing rolling resistance. This is your chance to truly become one with the trail thanks to Zipp.Features:The Zipp 303 Firecrest disc brake wheel is durable, lightweight and stiff, whilst also providing the consistent and powerful performance of disc brakingDisc brake (6-bolt) specific for superior braking in all weathersLight, aero design45mm deep for class leading aerodynamicsZipp 77D disc specific hub on a carbon clincher rimFirecrest Rim Technology provides world class handling and stabilityAero performance, sprinting stiffness, stable in the crosswinds and lightweightEngineered for the Classics yet, ready for anythingThru-axle compatibleRim material: carbonRim type: clincherRim depth: 45mmRim width: 28.5mmHub (disc specific - 6-bolt): Zipp 77DSpoke count: 24Spokes: CX-Ray, blackBearings: cartridge, stainless steelMax rider weight: 250IbsMax tyre pressure: 125psiBuy Zipp Wheels from Chain Reaction Cycles, the World's Largest Online Bike Store.
Zipp s 303 S Tubeless Disc-brake wheels provides today s cyclists the versatility they demand with the speed they crave. Expanding greatly on its heritage of conquering the Spring Classics, the 303 wheel maintains its ideal for every terrain 45mm rim depth but adds a significantly wider internal width to provide greater performance and ride quality in almost every measurable way. Road bikes are more versatile than ever, no matter the road surface, but just as fast as before. The 303 S offers a redesigned rim profile and design to optimize rider performance on this new breed of bike. This wheelset is tubeless for disc-brake bikes, allowing the ability to run wide tires at lower pressures for race-ready speed on or off the pavement.Orientation (wheels): FrontSize (wheels): 700cRim construction: CarbonTire compatibility: Clincher Tubeless ReadyRim depth: 45mmSurface texture: SmoothBrake compatibility: Disc (Centre Lock)Rim - inside width: 23mmRim profile: SymmetricalRim finish: UD fibre / Bake-On labels / Matte clear coatColour (Decal): StandardNipple material: BrassNipple anti-rotation: Sapim Secure-LocSpoke type: CX-SprintSpoke count: 24Spoke pattern: 2 CrossHub: 76DDriver body type: n/aColour (hub): BlackAxle type (Wheels): TA 12x100Axle material: Aluminium front & rearBearings: Cartridge - Stainless SteelDriver Mechanism: n/aDriver body material: n/aMax tire pressure: 73psiMax recommended rider weight: 250lbsPlease note: The below tyre brands have communicated to us that their tubeless models are compatible with our tubeless hookless straight side wheels. This is a guide and we still recommend consumers confirm compliance with their chosen tyre manufacturer: Zipp - Tangente Speed RT25, R28, and the Tangente Course G40 gravel tyreSchwalbe Rene Herse
Wide Carbon Fibre Road Bike Wheel 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 Front Wheel The 303 S is among Zipp's lightest wheelsets, 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 tire, according to internal Zipp testing. This groundbreaking wheelset also features all-new cosmetics, setting the rider apart from the pack, and comes at a very attractive price. Additional Features: Provides today’s cyclists the versatility they demand with the speed they crave Updated Zipp graphics and cosmetic identity Fastest with 28mm, fits wide gravel tyres Wide rims optimise tyre profile to allow lower tyre pressure, especially with tubeless. This results in a larger contact patch for increased grip Lower tyre pressures and larger volume provides a compliant ride with fewer vibrations Significant watt savings when running larger tyres at lower pressure Wide hookless rims create a seamless transition to the tyre, reducing drag 76 DB hub with centre locking interface Lifetime Warranty
Note: Listing is for a Front wheel only Zipp’s 303 S Tubeless Disc Brake wheelset provides today’s cyclists the versatility they demand with the speed they crave. Expanding greatly on its heritage of conquering the Spring Classics, this 303 wheelset maintains its ideal-for-every-terrain 45mm rim depth but adds a significantly wider internal width to provide greater performance and ride quality in almost every measurable way. 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 optimize rider performance on this new breed of bike. This wheelset is tubeless for disc-brake bikes, allowing the ability to run wide tires at lower pressures for race-ready speed on or off the pavement. The 303 S is among our lightest wheelsets, optimized for top aero performance with a 28mm tire but capable of handling gravel tires up to 50mm wide. The 303 S borrows design concepts from the higher-level 303 Firecrest Tubeless Disc-brake wheelset to gain speed through increased efficiency. That is achieved by creating a wheel with reduced: Wind resistance, rolling resistance, rider fatigue, and weight. The key innovation is in the 303 S Series’ rim design. Its 45mm rim depth is the same as its predecessor, the 302 Disc brake. But its rim width is 2mm wider, at 27mm, and its tire bed is a full 7mm wider, at 23mm. That rim platform is designed to be the fastest with a 28mm tire. The wide rim optimizes tire profile to allow lower tire pressure. That helps to reduce rolling resistance and provides a more compliant ride. The result of all this is a 10 percent watt savings vs. a top peer wheel in total power required to ride 40kph on a smooth flat road with a 28mm tire, according to internal Zipp testing. This groundbreaking wheelset also features all-new cosmetics, setting the rider apart from the pack, and comes at an attractive price. Key Features: Zipp graphics and cosmetic identity that scream speed, Fastest with 28mm, fits wide gravel tires as well, 76 / 176 DB hubs with Center locking interface, XDR driver body option, Wide rims optimize tire profile to allow lower tire pressure, especially with tubeless. The result is a larger contact patch for increase grip for confident cornering, descending, and handling in wet conditions., Lower tire pressures and larger volume provides a compliant ride with fewer vibrations., Significant watt savings when running larger tires at lower pressure., Wide hookless rims create a seamless transition to the tire, reducing drag., . Specification: Orientation (wheels): Rear, Size (wheels): 700c, Rim construction: Carbon, Tire compatibility: Clincher Tubeless Ready, Rim depth: 45mm, Surface texture: Smooth, Brake compatibility: Disc (Center Lock), Rim - inside width: 23mm, Rim profile: Symmetrical, Rim finish: UD fiber / Bake-On labels / Matte clear coat, Color (Decal): Standard, Nipple material: Brass, Nipple anti-rotation: Sapim Secure-Loc, Spoke type: CX-Sprint, Spoke count: 24, Spoke pattern: 2 Cross, Hub: 176D, Color (hub): Black, Axle type (Wheels): TA 12x142, Axle material: Aluminum front & rear, Bearings: Cartridge - Stainless Steel, Driver Mechanism: 3 Pawls Leaf Spring, Driver body material: Aluminum, Max tire pressure: 73psi, Max recommended rider weight: 250lbs, .
Zipp's 303 S carbon clincher disc brake front wheel, as any product from the American component makers, has high expectations to meet; fortunately the famed wheel makers don't disappoint. Offering a well thought out balance of speed, weight, and price the 303 S front wheel delivers on offering performance at a more value-focussed price point. For a full description check out the complete wheelset or if it's rear wheel you need then we've this covered too. you can also buy the and wheel separately. Durability, Weight, Versatility For the Zipp 303 S front wheel, the brand have striven not only on for the speed and performance the brand is known for, but also added durability and the ability to fit wide tyres. This combined means you can add a beefier tyre and make use of these rims in varied conditions. This isn't just a road wheel, it'll see you through some off-road exploration as well. This isn't a wheel meant only for race day. It's versatile, and capable of tackling winter training camps in Tenerife, racing the cobbles of Roubaix, or performing in your fast bunch rides. Deep Dish Offering 45 mm-deep rim and a reasonable combined weight (front and rear) of 1530 grams, these wheels blend aerodynamic advantage with weight excellently. You'll be able to cruise effortlessly along the fronts and won't feel anchored down when climbing. Bigger, Wider, Faster It's no secret that wheels are getting wider these days, for good reason too. Wider rims allow for wider tyres, which in turn means more comfort, more stability in corners, and lower rolling resistance. Ultimately this means more speed for less effort. Who could possibly argue with that? The rims are optimised for a 28 mm tyre but will take up to 50 mm tyres. Product Features Front wheel Carbon-fibre rims 45 mm-rim depth 23 mm-internal rim width 27 mm-external rim width Optimised for 28mm tyres, but accommodates up to 50mm Hookless rim Only compatible with tubeless tyres Disc brake (centre-lock) compatible Through axles - 12x100mm front Sapim CX-Sprint J bend spokes. 24 front and rear. Brass nipples Lifetime warranty Includes wheelset, tubeless rim tape, tubeless valves, centre lock lock ring
Zipp’s 303 S Tubeless Disc Brake wheelset provides today’s cyclists the versatility they demand with the speed they crave. Expanding greatly on its heritage of conquering the Spring Classics this 303 wheelset maintains its ideal-for-every-terrain 45mm rim depth but adds a significantly wider internal width to provide greater performance and ride quality in almost every measurable way. 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 optimize rider performance on this new breed of bike. This wheelset is tubeless for disc-brake bikes allowing the ability to run wide tires at lower pressures for race-ready speed on or off the pavement. The 303 S is among our lightest wheelsets optimized for top aero performance with a 28mm tire but capable of handling gravel tires up to 50mm wide. The 303 S borrows design concepts from the higher-level 303 Firecrest Tubeless Disc-brake wheelset to gain speed through increased efficiency. That is achieved by creating a wheel with reduced: Wind resistance rolling resistance rider fatigue and weight. The key innovation is in the 303 S Series’ rim design. Its 45mm rim depth is the same as its predecessor the 302 Disc brake. But its rim width is 2mm wider at 27mm and its tire bed is a full 7mm wider at 23mm. That rim platform is designed to be the fastest with a 28mm tire. The wide rim optimizes tire profile to allow lower tire pressure. That helps to reduce rolling resistance and provides a more compliant ride. The result of all this is a 10 percent watt savings vs. a top peer wheel in total power required to ride 40kph on a smooth flat road with a 28mm tire according to internal Zipp testing. This groundbreaking wheelset also features all-new cosmetics setting the rider apart from the pack and comes at an attractive price. FEATURES Zipp graphics and cosmetic identity that scream speed Fastest with 28mm fits wide gravel tires as well 76 / 176 DB hubs with Center locking interface XDR driver body option Wide rims optimize tire profile to allow lower tire pressure especially with tubeless. The result is a larger contact patch for increase grip for confident cornering descending and handling in wet conditions. Lower tire pressures and larger volume provides a compliant ride with fewer vibrations. Significant watt savings when running larger tires at lower pressure. Wide hookless rims create a seamless transition to the tire reducing drag. SPECIFICATIONS SIZE (WHEELS) 700c RIM CONSTRUCTION Carbon – Hookless TIRE COMPATIBILITY Tubeless tires only BRAKE COMPATIBILITY Disc (Center Lock) DRIVER BODY TYPE n/a SRAM XDR SRAM/Shimano Road RIM - INSIDE WIDTH 23mm RIM FINISH UD fiber / Bake-On labels / Matte clear coat RIM PROFILE Symmetrical SPOKE LENGTH DS 264mm 266mm SPOKE LENGTH NDS 266mm 268mm WEIGHT (G) 1530 WEIGHT BASED ON Lightest configuration: 12mm through axles and XDR body. No tape or valve included in weight. Front: 711g Rear: 819g
Zipp s 353 NSW Tubeless Disc-brake wheelset is the pinnacle of our pursuit of versatility and speed. This wheelset fuses Zipp s two most advanced approaches, Sawtooth rim profile and Total System Efficiency for an all-encompassing approach to performance. Zipp's lightest tubeless ready wheelset yet at just 1255g per pairSawtooth rim with Hyperfoil nodes and HexFin ABLC dimple pattern for top aero and crosswind-stability performance with an undulating rim depth25mm internal width and tubeless compatibility for optimization of wider tyres with lower tyre pressureCognition DB hub set with Axial Clutch freehub rolls efficientlySuitable for 100x12mm (front) and 142x12mm (rear) axles - sold individually as front or rear wheelsWith its undulating 45-mm deep rim shape, the 353 NSW provides speed on every terrain with best-in-class aerodynamic efficiency and crosswind stability. The 353 NSW is Zipp s lightest tubeless wheelset yet, making it a fast-puncher ready to fight its way into the breakaway. With Zipp s hookless rims, the transition between the tire and the rim is more seamless and aero. Zipp s hookless rims have more efficient resin distribution, which means lighter wheels. They also are highly durable. Zipp s 353 NSW s Sawtooth rim shape with Hyperfoils optimizes aerodynamic efficiency and crosswind stability. The Sawtooth design also allows the rim to be structurally strong but light. That will help you snap out of corners and maintain that speed no matter the terrain, especially the steep, punchy stuff. The 353 NSW utilizes Zipp s Total System Efficiency, or TSE, approach to wheel design: overcoming specific barriers to speed: wind resistance, gravity, rolling resistance, and vibration losses. The wheelset s 25mm internal width is ideal for running wider tubeless tires at reduced air pressure for a more efficient ride. At the centre of the 353 NSW is the Cognition V2 Hubset re-engineered with an updated Axial Clutch V2 mechanism for quicker engagement and lower friction as well as improved durability.
Zipp 353 NSW Carbon TL Front Road Disc Wheel This road bike front wheel features a high-quality carbon hookless rim construction, which offers increased stiffness, strength and an overall lower weight as you conquer the demands of modern road cycling. Developed for greater versatility and speed, it's equipped with many of Zipp's finest performance-enhancing technologies including a Sawtooth rim shape and Total System Efficiency (TSE) that offer reduced wind resistance, rolling resistance and gravity vibration losses. Coming kitted out with 45mm deep rim shape, this model delivers fantastic speed on every terrain with best-in-class aerodynamic efficiency and crosswind stability. Tubeless, Hookless Road Bike Front WheelThe 353 NSW is Zipp's lightest tubeless wheel yet, making it a fast-puncher ready to fight its way into the breakaway. Zipp's use of a hookless (straight side) rim in the 353 NSW is integral to achieving the brand's mission of Making You Faster. With hookless, the transition between the tyre and the rim is more seamless and aerodynamic. Zipp's hookless rims have more efficient resin distribution, which results in a lighter and highly durable front wheel. Thanks to its 25mm internal rim width, its ideal for running wider tubeless tyres at reduced air pressure for improved stability, greater comfort and fewer chances of flats or punctures.Sawtooth Rim Shape with HyperFoilsZipp's 353 NSW's Sawtooth rim shape with Hyperfoils optimises aerodynamic efficiency and crosswind stability. The Sawtooth design also allows the rim to be structurally strong but remain lightweight, which will help you snap out of corners and maintain your speed no matter the terrain. Centre Lock Disc Brake CompatibilityReady for clocking up the miles, this front wheel is equipped with Centre Lock disc brake compatibility, so riders can enjoy powerful and consistent braking operation wherever their ride takes them. This makes the Zipp 353 NSW Carbon TL Disc Centre Lock Front 2021 a great choice of upgrade for faster, smoother and more dependable performance on your road bike.Features: Rim Material: Carbon Rim Finish: Unidirectional (UD) Fibre Rim Graphics: Impress technology Axle Size: 12x100mm Use: Road Inner Rim Width: 25mm Rim Depth: 45mm Rim Shape: Symmetrical, Sawtooth Rim Profile: Hookless, Tubeless Clincher Hub: Cognition V2 Drive Side Spoke Length: 258mm, 266mm Non Drive Side Spoke Length: 264mm, 266mm Size: 700c Tyre Compatibility: Tubeless tyres only Brake Compatibility: Centre Lock disc brake Single or Pair: Single Lifetime warranty Weight: 580gTechnologies: Impress: Zipp has employed ImPress graphics technology on this model, which prints graphics directly on the wheel, to help allow the dimples to do what they were design to do - help control vortex shedding, the rate at which air sheds off the wheel. Managing this is crucial to stability. Sawtooth: SawTooth is the name given to Zipp NSW's patented variable depth 53/58mm rims. Developed utilising the principles of the emerging science of biomimicry, Zipp engineers began the rigorous aero development process of SawTooth utilising the wind tunnel, CFD, and real-world testing. The result is a rim shape that takes nature's most elegant design solutions and combines engineering precision to deliver a wheel that performs unlike any made before. This patented rim shape achieves something conventional aero wheels cannot; it simultaneously reduces both aerodynamic drag and side force for the ultimate in AeroBalance. Sawtooth accomplishes this with a series of patented fin-shaped Hyperfoil nodes along the inner diameter of the rim that work together with HexFin ABLC dimples for improved airflow. The result is Zipp's highest performing wheel ever released with both aero-drag reduction and reduced side force at all wind yaw angles. This is important because higher wind yaw angles are where bike handling is most affected by the wind. Hyperfoil: Hyperfoil is the name given to the individual nodes on Zipp NSW variable depth Sawtooth rims. Each of these patented structures features Zipp's HexFin ABLC dimples that help to stabilize handling in gusting wind by increasing wind vortex shedding frequency. The higher frequency vortex shedding produced by Sawtooth creates a greater number of smaller, less powerful, yet more predictable vortices leading to greater wheel stability. This added stability translates into greater rider control, thereby saving energy that is typically expended trying to hold a line in gusting wind. The result is a faster, more confident riding experience whether you are laying down power or descending sinuous mountain roads. TSE Technology: Zipp's TSE Technology (Total System Efficiency) was developed by its engineers in the Nest Advanced Development Lab in Indy. This approach to carbon-wheel manufacturing means the wheel's precise rim layup results in greater all-around efficiency for greater speed through reduced: Wind resistance, rolling resistance and gravity (weight + durability) vibration losses.Manufacturer's Part Number: ZPWH8612000Buy Zipp Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Zipp 404 Firecrest Carbon TL Disc CL FrontIdeal for road, time trial or triathlon racing, this front wheel features a high-quality carbon rim construction for an excellent balance of stiffness, strength and an overall low weight on your ride. Zipp has also kitted out this model with some of its finest technologies including a hookless tubeless rim profile that's perfect for modern racing. This means you'll enjoy tubeless benefits such as the ability to run lower tyre pressures for increased stability, comfort and fewer chances of flats or punctures. Another highlight is its Centre-Lock disc brake compatibility, which allows for powerful and consistent braking performance as you maintain your momentum.Carbon Front Wheel with Hookless, Tubeless Rim ProfileThe 404's heritage as Zipp's icon of speed extends back decades, and its future is even brighter. At 58mm deep, the 404 Firecrest Tubeless is ideal for road races, time trial and triathlon, gran fondos, and riding over varied terrain. This wheel's 23mm internal width is perfect for running wider tubeless tyres at reduced air pressure, while its use of hookless (straight side) rims is integral to Making You Faster. With hookless, the transition between the tyre and the rim is more seamless and aero. Zipp's hookless rims also have more efficient resin distribution, which results in a lighter, stronger wheel.Total System Efficiency and ABLC Sawtooth TechnologyReady for racing, this front wheel is equipped with Zipp's Total System Efficiency (TSE) technology, which is an approach to speed on ever-changing roads and riding conditions. Specifically, TSE focuses on overcoming specific barriers to speed such as wind resistance, gravity, rolling resistance, and vibration losses. With the addition of ABLC Sawtooth technology, this model also uses an intricate dimpling pattern to improve aero efficiency. Coming complete with a German-engineered ZR1 DB hub that's versatile and durable, the Zipp 404 Firecrest Carbon TL Disc CL Front wheel is a great choice of upgrade for road riding and racing.Features: Rim Material: Carbon, hookless Rim Finish: Unidirectional (UD) fibre, adhesive decals Axle Size: 12x100mm thru-axle Use: Road, Triathlon and Time Trial Rim Profile: Symmetrical Inner Rim Width: 23mm Max Outside Width: 28mm Rim Depth: 58mm Wheel Size: 700c Tubeless Ready: Yes, tubeless-ready hookless design Tyre Compatibility: Tubeless tyres only (hookless) Max Tyre Pressure: 73psi Brake Type: Centre Lock disc brake Hub: ZR1 Disc Brake Axle Material: Aluminium Nipple Material: Aluminium Nipple Anti-Rotation: Sapim Secure-Loc Spoke Type: CX-Ray Spoke Count: 24 Spoke Pattern: 2 cross Drive Side Spoke Length: 254mm Non-Drive Side Spoke Length: 252mm Bearings: Cartridge Steel bearings Surface Texture: ABLC SawTooth Single or Pair: Single front wheel Max Recommended Rider Weight: 250lbs Weight: 839gTechnologies: Versatile aero wheel for the modern road bike with tubeless and hookless rim profile. Optimized tyre bed for easy tyre installation. Wide 23mm rim profile creates a better tyre interface to be fast on or off the road. ZR1 DB hub is engineered in Germany with a better seal design for improved durability and quicker response with 66 points of engagement. Centre locking rotor interface. Lifetime warranty.Buy Zipp Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Zipp 404 Firecrest Carbon Tubeless Front WheelZipp's legendary speed weapon, the 404 Firecrest, is better than ever. This go-to rim-brake front wheel is, for the first time, tubeless ready. That means you can run reduced tyre pressure for reduced rolling resistance and increased cornering grip and compliance without the risk of pinch flats. This front wheel's 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. Zipp's ABLC Sawtooth Technology uses a complex dimpling pattern to improve aero efficiency. Zipp's ShowStopper textured braking surface delivers unrivalled rim braking performance in wet or dry conditions. At the centre of the 404 Firecrest Tubeless rim brake is a versatile and durable hub, the German-engineered ZR1. If you had to choose just one wheel for road riding and racing, the 404 Firecrest Tubeless is a savvy and speedy choice.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.AerobalanceZipp's sole mission is to help you go faster. That's why Zipp wheels are race-ready before they're camera-ready. For years, Zipp has used a combination of testing methods - wind tunnel, CFD computer simulations, pro athlete evaluations, on-road testing, and the RollingRoad ride simulator - to refine aero performance to new levels of excellence. Over the decades of innovation, Zipp's engineers have learned to look beyond just focusing on simply reducing aero drag. Instead, the goal now is to reduce aero drag while also minimising the effects of crosswinds on handling. This optimising of aero efficiency and crosswind stability became known internally at Zipp as AeroBalance. The approach began with Firecrest technology and has been advanced with the introduction of the NSW lineup, especially with the Sawtooth technology found in the 454 and 858 NSW. Sawtooth accomplishes this with a series of patented fin-shaped Hyperfoil nodes along the inner diameter of the rim that works together with the brand's HexFin ABLC dimples for improved airflow.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.Features: Rim Material: Carbon with UD Fibre finish and adhesive decals Use: Road Axle Type: QR 100 Caps (diameter 19mm) Internal Rim Width: 19mm Rim Depth: 58mm 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: 18 Spoke Pattern: Radial Axle Material: Aluminium Bearings: Cartridge, Steel Max Tyre Pressure: 125psi Max Recommended Rider Weight: 250lbs Single or Pair: Single front wheelTechnologies: New Zipp graphics and cosmetic identity that scream speed. Built with Sapim CX Sprint J-bend spokes. Tubeless ensures secure performance even when ridden at lower tyre pressures. All-around aero 58mm rim depth with proven crosswind stability. ABLC Sawtooth dimple design helps manage air flow around the rim, and contributes to create a faster, more stable wheel. Showstopper textured brake track delivers superior modulation and shortest stopping distances in wet and dry conditions. Ships with QR end caps, quick release skewers.Manufacturer's Part Number: ZPWH8521000 Black 700cBuy Zipp Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.