Zipp s 303 Firecrest Tubeless rim-brake wheels are an all-around wheel for a new era of road riding. 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. New Zipp graphics and cosmetic identity that scream speedNew ZR1 hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagementBuilt with Sapim CX Sprint J-bend spokesTubeless ensuring secure performance even when ridden at lower tyre pressuresVersatile 45mm rim profile that s fast, stable and versatileABLC Sawtooth dimple design helps manage air flow around the rim, and contributes to create a faster, more stable wheelShowstopper textured brake track delivers superior modulation and shortest stopping distances in wet and dry conditionsXDR or SRAM/Shimano driver bodiesShips with QR end caps, quick release skewersCampagnolo driver body sold separatelyAt Zipp, they never rest on laurels. These wheels feature a 19mm internal width and is tubeless ready. That means you can run lower tyre pressure for greater cornering grip and compliance with reduced rolling resistance without the risk the pinch flats. When it comes to pure speed, the 303 Firecrest Tubeless packs a serious punch. It s lightweight with ABLC Sawtooth Technology, a complex dimpling pattern first developed for our top-level NSW wheel line up. This technology helps to achieve the optimization of low aerodynamic drag and crosswind stability, which we call AeroBalance . Zipp s ShowStopper textured braking surface delivers unrivalled rim braking performance in wet or dry conditions. At the centre of the 303 Firecrest Tubeless rim-brake is a new versatile and durable hub, the German-engineered ZR1.Orientation (wheels): RearSize (wheels): 700cRim construction: CarbonTire compatibility: Clincher Tubeless ReadyRim depth: 45mmSurface texture: ABLC DimplesBrake compatibility: RimRim - inside width: 19mmRim profile: SymmetricalRim finish: UD fiber, adhesive decalsColor (Decal): StandardNipple material: AluminumNipple anti-rotation: Sapim Secure-LocSpoke type: CX-SprintSpoke count: 24Spoke pattern: 2 CrossHub: ZR1 Rim BrakeDriver body type: SRAM/Shimano RoadColor (hub): BlackAxle type (Wheels): QR 135Axle material: Aluminum front & rearBearings: Cartridge - Stainless SteelDriver Mechanism: 6 Pawls Leaf SpringDriver body material: AluminumMax tire pressure: 125psiMax recommended rider weight: 250lbsPart Weight (g): 842
Zipp 303 Firecrest Carbon Tubeless Rear WheelEngineered to meet the demands of modern road bike adventures, this rear wheel features a hookless carbon rim construction, which allows it to deliver incredibly fast and smooth rolling performance. Zipp has equipped this model with tubeless tyre compatibility, so you can enjoy the benefits of superior stability and control as well as a lighter overall weight. Another highlight of this version is its disc brake compatibility, which means that you'll benefit from powerful and consistent braking performance during the most unpredictable of road conditions.Zipp's 303 Firecrest Tubeless Disc-brake rear wheel is designed for the real world… a world of imperfect conditions, road surfaces, and elements where the bottom line is simple. Efficiency = speed. It's faster, lighter, and more capable over varied terrain—whether the surface is pavement in all its conditions or no pavement at all. Deeply rooted in Zipp's drive to conquer the Spring Classics, the 303 Firecrest is remade with a purpose-made approach for the demands of modern road bikes. When it comes to going fast on a bicycle, efficiency means reduced: Wind resistance, rolling resistance, rider fatigue, weight. Designed using real-world direct measurements (vs. primarily wind tunnel or computer simulation). The results were huge. Its rim is slightly more bulbous in design than its predecessor, with a 30mm outside width, a 25mm internal width, and a 40mm rim depth. The profile provides low drag and an improved transition between rim and tyre, boosting aero efficiency on the road. The wide rim stance also features less tyre deflection for reduced rolling resistance. The combination of the wider tyre, increased tyre volume, and lower tyre pressure helps to reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tyre and wheel system absorbs the shaking, not the rider. At the centre of the 303 Firecrest Tubeless Disc brake rear wheel is a versatile and durable hubset, the German-engineered ZR1 DB. This hubset features 66 points of engagement for quicker response. The 303 Firecrest Tubeless Disc-brake rear wheel is for dedicated cyclists who aspire to the latest in technology. Its competitors… in races, against peers, or simply conquering personal limits. This is about becoming faster and matching your motivation to the most advanced technology.Features: Rim Material: Hookless Carbon Tyre Compatibility: Tubeless tyres only Brake Compatibility: Disc (Center Lock) Rim Inside Width: 25mm Rim Profile: Symmetrical Rim Finish: UD fibre, adhesive decals Nipple Material: Aluminium Spoke Type: CX-Ray Spoke Count: 24 Spoke Pattern: 2 Cross Driver Body Type: Multiple options available to select Axle Type: TA 12x142 Bearings: Cartridge - Steel Driver Mechanism: 6 Pawls Leaf Spring Weight: 842g (approx)Technologies: Zipp graphics and cosmetic identity that scream speed Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile Lighter Weight than its predecessor, making it nimble and fast Tubeless Made Easy, optimised tyre bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tyre Ultra-wide 25mm rim profile creates a better tyre interface to be fast on or off the road 40mm rim depth makes a light and aero wheel in every situation ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement Center locking rotor interface. Lockring is included with the wheels XDR or SRAM/Shimano driver bodies Campagnolo driver body sold separatelyBuy Zipp Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Wider Carbon Fibre Rim for Better Aerodynamics The 303 Firecrest Tubeless Disc brake wheels were designed using real-world direct measurements (vs. primarily wind tunnel or computer simulation). This included Zipp’s RollingRoad™ Testing Protocol. The results were huge. Its rim is slightly more bulbous in design than its predecessor, with a 30mm outside width, a 25mm internal width and a 40mm rim depth. The profile provides low drag and an improved transition between rim and tyre, boosting aero efficiency on the road. Faster Performance These wheels are faster, lighter and more capable over varied terrain, whether the surface is tarmac in all its conditions or no tarmac at all. Deeply rooted in Zipp’s drive to conquer the Spring Classics, the revised 303 Firecrest is redesigned with a purpose-made approach for the demands of modern road bikes. This is the first Zipp wheelset to feature TSE™ Technology (Total System Efficiency). The 303 Firecrest’s precise rim layup results in greater all-around efficiency for greater speed through reduced wind resistance, rolling resistance, a lower weight, increased durability and vibration losses. More Comfortable Ride on Mixed Terrain The wide rim stance also features less tyre deflection for reduced rolling resistance. The combination of the wider tyre, increased tyre volume and lower tyre pressure reduces rider fatigue. This is because the ride is smoother over imperfect surface conditions as the tyre and wheel system absorbs the shaking, not the rider. At the centre of the 303 Firecrest Tubeless Disc brake is a versatile and durable hubset, the German-engineered ZR1 DB. This hubset features 66 points of engagement for quicker pedalling response. The 303 Firecrest Tubeless Disc-brake wheelset is for those after greater efficiency for greater speed. The payoff is a smoother, faster ride. Additional Features: Updated Zipp graphics and cosmetic identity that scream speed Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile Lower in weight - a 300g weight reduction than its predecessor, making it nimble and fast Tubeless Made Easy, optimised tyre bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tyre Ultra-wide 25mm rim profile creates a better tyre interface to be fast on or off the road 40mm rim depth makes a light and aero wheel in every situation ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement Ships with 12mm front and rear end caps Centre locking rotor interface Lockring is included with the wheels Lifetime Warranty
Zipp’s 303 Firecrest® Tubeless Disc-brake wheelset is designed for the real world… a world of imperfect conditions, road surfaces, and elements where the bottom line is simple. Efficiency = speed. It’s faster, lighter, and more capable over varied terrain—whether the surface is pavement in all its conditions or no pavement at all. Deeply rooted in Zipp’s drive to conquer the Spring Classics, the new 303 Firecrest is remade with a purpose-made approach for the demands of modern road bikes. When it comes to going fast on a bicycle, efficiency means reduced: Wind resistance, rolling resistance, rider fatigue, weight. The 303 Firecrest Tubeless Disc-brake was designed using real-world direct measurements (vs. primarily wind tunnel or computer simulation). The results were huge. Its rim is slightly more bulbous in design than its predecessor, with a 32mm outside width, a 25mm internal width, and a 40mm rim depth. The profile provides low drag and an improved transition between rim and tire, boosting aero efficiency on the road. The wide rim stance also features less tire deflection for reduced rolling resistance. The combination of the wider tire, increased tire volume, and lower tire pressure helps to reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tire and wheel system absorbs the shaking, not the rider. At the center of the 303 Firecrest Tubeless Disc brake is a versatile and durable new hubset, the German-engineered ZR1 DB. This hubset features 66 points of engagement for quicker response. The 303 Firecrest Tubeless Disc-brake wheelset is for dedicated cyclists who aspire to the latest in technology. Its competitors… in races, against peers, or simply conquering personal limits. This is about becoming faster and matching your motivation to the most advanced technology. Features: New Zipp graphics and cosmetic identity that scream speed Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile Lighter Weight than its predecessor, making it nimble and fast. Tubeless Made Easy, optimized tire bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tire. Ultra-wide 25mm rim profile creates a better tire interface to be fast on or off the road New 40mm rim depth makes a light and aero wheel in every situation New ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement Ships with 12mm front and rear end caps Center locking rotor interface. Lockring is included with the wheels XDR™ or SRAM/Shimano driver bodies Campagnolo driver body sold separately
Zipp 303 Firecrest Carbon Tubeless Rear WheelZipp's 303 Firecrest Tubeless rim-brake rear wheel is an all-arounder for a new era of road riding. 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.Tubeless Ready Road Bike Rear WheelAt Zipp, they never rest on laurels. This rear wheel features a 19mm internal width and is tubeless ready. That means you can run lower tyre pressure for greater cornering grip and compliance with reduced rolling resistance without the risk of pinch flats.Lightweight Carbon with ABLC Sawtooth TechnologyWhen it comes to pure speed, the 303 Firecrest Tubeless packs a serious punch. It's lightweight with ABLC Sawtooth Technology, a complex dimpling pattern first developed for the brand's top-level NSW wheel lineup. This technology helps to achieve the optimization of low aerodynamic drag and crosswind stability, which they call AeroBalance.Rim Brake CompatibleZipp's ShowStoppertextured braking surface delivers unrivalled rim braking performance in wet or dry conditions. At the center of the 303 Firecrest Tubeless rim brake is a new versatile and durable hub, the German-engineered ZR1.Features: Rim Construction: Carbon with Hooks with UD Fibre finish and adhesive decals Rim Profile: Symmetrical Hub: ZR1 Rim Brake Wheel Size: 700c Tyre Compatibility: Tube-type or tubeless tyres Inner Rim Width: 19mm Rim Depth: 45mm Spoke Length: Drive Side: 254mm, 260mm; Spoke Length Non Drive Side: 254mm, 264mm Tyre Pressure: 125psi Freehub: Multiple options available to select Weight: 1530gKey Features: Zipp graphics and cosmetic identity that scream speed New ZR1 hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement Built with Sapim CX Sprint J-bend spokes Tubeless ensuring secure performance even when ridden at lower tire pressures Versatile 45mm rim profile that's fast, stable and versatile 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 XDR or SRAM/Shimano driver bodies available to select Ships with QR end caps, quick-release skewers Campagnolo driver body sold separatelyTechnologies: Showstopper: Our 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. ABLC Sawtooth: ABLC Sawtooth dimple design helps manage air flow around the rim, and contributes to create a faster, more stable wheel. AeroBalance: Zipp's sole mission is to help you go faster. That's why our 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, our engineers have learned to look beyond just focusing on simply reducing aero drag. Instead, the goal now is to reduce aero drag while also minimizing 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 work together with our new HexFin ABLC dimples for improved airflow.Manufacturer's Part Number: ZPWH8532001 Black 700c SRAM XD SRAM XDR ZPWH8532000 Black 700c Shimano/SRAMBuy Zipp Wheels & Tyres 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 optimise 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): RearSize (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: 176DDriver body type: SRAM/Shimano Road or SRAM XDRColour (hub): BlackAxle type (Wheels): TA 12x142Axle material: Aluminium front & rearBearings: Cartridge - Stainless SteelDriver Mechanism: 3 Pawls Leaf SpringDriver body material: AluminiumMax 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
Zipp never fail disappoint with their wheels, and the Zipp 303 S disc rear wheel is no exception. In this series, the American brand have not only incorporated their trademark speed and low weight into the wheels, they're also touting the durability, versatility, and lower-than-usual price point. Boasting a 45 mm-deep rim profile and an ability to fit wide tires, this is a rear wheel equally suited to fast bunch rides as it is exploring off road. This listing is for a rear wheel only. You can also buy the complete wheelset or the front wheel separately. Faster, Lighter, Stronger The Zipp 303 S rear wheel is equally well suited to racing smooth continental roads and cobbled farm tracks as they are exploring off-road. This isn't just a race day wheel, it's a wheel for training and racing all-year round. Although the Zipp 303 S rear wheel offers all-round performance, that's not to say it doesn't live up to the pedigree of the Zipp name. The 45mm-deep rim, coupled with a respectable total weight (front and rear combined) of 1530 grams, makes these a fast set of rims in any condition. They blend aerodynamic advantage and weight excellently to ensure you're able roll along in the bunch effortlessly and don't feel bogged down when fighting against gravity. Wider and Faster The current trend is for bike rims to be wider than they traditionally were. The benefit of wider rims is they'll seat wider tyres, which in turn means you need a lower pressure to fill the tyre. Combined, this adds up to a smoother ride, more grip while cornering, and quicker rolling tyres. What's not to like? This rear wheel is optimised for a 28 mm tyre but can accommodate up to 50 mm tyres. Product Features Carbon-fiber rims 45mm-rim depth 23mm-internal rim width 27mm-external rim width Optimized for 28mm tires, but accommodates up to 50mm Hookless rim Only compatible with tubeless tires Disc brake (centre-lock) compatible 76 / 176 DB hubs with Center locking interface XDR driver body option Through axles - 12x142mm rear Sapim CX-Sprint J bend spokes. 24 front and rear. Brass nipples Lifetime warranty Includes wheelset, tubeless rim tape, tubeless valves, center-lock lock ring
Any offering from Zipp is certain to come with high expectations, and this version of the Zipp 303 S wheelset doesn’t disappoint. With this edition, the wheel building pioneers are touting not only the speed and low weight of their wheels, but also the durability and ability to fit wide tyres, making them suitable for on and off-road exploring. All this at the brand’s lowest price point ever means this is a product offering value for money, as well as high performance. This listing is for a complete wheelset, you can also buy the front and rear wheel separately. Lighter, Stronger, Faster The Zipp 303 S wheelset is intended to be versatile, equally suited to training and racing in a range of conditions. Whether you’re on the silky-smooth tarmac of Majorca, the bone-shaking pavé of Flanders, or the dusty plains of Kansas, these wheels cover them all. Boasting a 45mm-deep rim, coupled with a respectable total weight of 1530 grams, these wheels offer a great balance between aerodynamics and weight, ensuring you have the speed on the flats and the low weight needed for when the road tilts up. As a wheel intended for racing, this product is expectedly stiff, and you’d be hard pressed to notice any lateral flex under those big, decisive accelerations. Additionally, even the most weight conscious can rest assured they won’t be held back on the climbs and that they’re responsive enough for sprint finishes on the road — whether that finish line is a sanctioned road race or the café, it doesn’t matter! Bigger, Wider, Faster Known as pioneers in the wheel-building space, Zipp are on trend in terms of offering wider tyre options. With wider tyres you can run lower air pressures, which can increase comfort and grip in the corners; importantly, this amounts to more speed, particularly across rough terrain. Boasting a broader, hookless rim, the Zipp 303 S wheelset is optimised for a 28mm tyre on the road but will happily take up to 50mm tyres for gravel adventures. Stopping Power It has become almost the norm for wheels to come in disc-brake-only versions, and that’s exactly what you get here. Being equipped with disc brakes means that when you squeeze the brakes — regardless of the conditions — you can be confident you’ll get consistent stopping power. Lifelong Quality Filled with the highest-quality steel bearings, the hubs will run smooth and should stand the test of time. So confident in the durability of the 303 S wheelset, Zipp are offering a lifetime warranty. Product Features Carbon-fibre rims 45mm-rim depth 23mm-internal rim width 27mm-external rim width Optimised for 28mm tyres, but accommodates up to 50mm Hookless rim Only compatible with tubeless tyres Disc brake (centre-lock) compatible 76 / 176 DB hubs with Center locking interface XDR driver body option Through axles — 12x100mm front and 12x142mm rear Sapim CX-Sprint J bend spokes. 24 front and rear. Brass nipples Weight: 1530 grams Lifetime warranty Includes wheelset, tubeless rim tape, tubeless valves, centre lock lock ring
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 Rear Road Disc Wheel Offering increased stiffness, strength and an overall lower weight, this road bike rear wheel features a high-quality carbon hookless rim construction for conquering 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 Rear 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 rear 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 rear 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 Center Lock Rear 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: 12x142mm Use: Road Inner Rim Width: 25mm Rim Depth: 45mm Rim Shape: Symmetrical, Sawtooth Rim Profile: Hookless, Tubeless Clincher Hub: Cognition V2Freehub Compatibility: Multiple options available to select 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: 675gTechnologies: 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.Hexfin ABLC: HexFin ABLC dimples are the hexagonally shaped depressions found at each Hyperfoil of our Sawtooth shaped NSW rims. The angular shape of each dimple increases boundary layer mixing to help keep airflow attached to the rim for reduced aerodynamic drag and improved stability in crosswinds. To further improve the effectiveness of the hexagonal dimples, they are arranged in fin-shaped clusters made up of variable sized dimples that work in concert with each Hyperfoil of a Sawtooth rim.Axial Clutch: With Cognition's Axial Clutch technology, Zipp reduced drag by disengaging the ratchet mechanism when coasting. With less internal hub drag a rider can pedal less when drafting in a headwind, achieve higher speeds when coasting in an aero tuck, or opt to stop pedalling a moment sooner before entering a corner and bank that wattage for use exiting the corner. Axial Clutch technology also allows riders to maintain speed through corners that don't require braking input, thereby increasing corner exit speeds. Inside the Axial Clutch mechanism Zipp use magnets, rather than steel springs, to move and engage the lightweight Metal Injection Molded (MIM) ratchet rings for unmatched reliability and consistent operation. With 36 points of engagement that all interlock simultaneously, there isn't a more secure freehub mechanism on the market. 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 Numbers: Shimano HG 10/11 speed: ZPWH8613000 SRAM XD 10/11/12 speed: ZPWH8613001Buy Zipp Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Features: Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile Our lightest tubeless wheelset yet, making it a fast-puncher ready to fight Optimized tire bed for easy tire installation TSE™ for greater efficiency and reduced rolling resistance Sawtooth™ rim with Hyperfoil™ nodes and HexFin™ ABLC dimple pattern for top aero and crosswind-stability performance with an undulating rim depth Cognition V2 hubset rolls efficiently whether you are pedaling or coasting. Its Axial ClutchV2 technology reduces drag and lowers friction Ships with 12mm front and rear end caps Center locking rotor interface. Lockring is included with the wheels Zipp graphics applied using Zipp’s ImPress™ direct-print technology XDR™ or SRAM/Shimano driver bodies Campagnolo driver body sold separately Lifetime warranty
If you had to choose just one wheel, the 404 Firecrest Carbon Clincher is a savvy and speedy choice. With a 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 all-around performer that has carried athletes to victory in every kind of event and situation – every triathlon distance, breakaways, field sprints and hilly finishes. This latest iteration of the 404 Firecrest Carbon Clincher is infused with technologies developed in our Indianapolis advanced development lab. The results mean better performance out on the road: More speed, better control, and greater stopping power than its predecessor: 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 404 Firecrest Carbon Clincher is 75 grams lighter than its previous iteration.