ZIPP 303 Firecrest 650b Tubeless Disc-Brake XDR Rear WheelThe definition of road cycling now includes gravel and dirt in addition to pavement. Simultaneously, bikes are evolving to meet the requirements of smaller riders. Zipp's 303 Firecrest 650b Tubeless Disc-Brake wheel was created to fulfil these needs. The smaller rim provides room within frames and forks for big-volume tyres, delivering improved comfort, compliance and cornering performance on the most challenging terrain. A 45mm rim profile reduces wind resistance, rolling resistance and weight but benefits from a wider internal width for enhanced performance and ride quality on almost every surface imaginable.ABLC (AERODYNAMIC BOUNDARY LAYER CONTROL)ABLC refers to the patented and instantly recognisable dimpled pattern found on all of Zipp's carbon rims. ABLC smooths airflow across the rim surface, and this latest third-gen iteration features up to four times more dimples than before.AEROBALANCEZipp wheels are race-ready before they are camera-ready. Using a combination of testing methods, Zipp refines aero performance to new levels of excellence. Aerobalance ensures the perfect balance of aero efficiency and crosswind stability. Product Details Rim Dimensions45mm Profile. 21mm InternalTubeless Compatible YesRear Wheel744gRear HubZR1 DB. J-Bend. OLD 142mm. Centre Lock. 12mm Thru-Axle. SRAM XDR. BlackSpokesSapim CX-Sprint. J-Bend.Spoke Count24H Rim TechnologyCarbonMax PSI125PSI Rider Weight Limit130kgWarrantyZipp Limited Lifetime
Zipp s 303 Firecrest Tubeless Disc-brake Front 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. New Zipp graphics and cosmetic identity that scream speedVersatile endurance wheel for the modern road bike with tubeless and hookless rim profileLighter 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 roadNew 40mm rim depth makes a light and aero wheel in every situationNew ZR1 DB hub is engineered in Germany with better seal design for improved durabilityShips with 12mm front and rear end capsCentre locking rotor interface. Lock ring is included with the wheelsDeeply 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 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 is a versatile and durable new hub, the German-engineered ZR1 DB. The 303 Firecrest Tubeless Disc-brake 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.Orientation (wheels): FrontSize (wheels): 700cRim construction: CarbonTire compatibility: Clincher Tubeless ReadyRim depth: 40mmSurface texture: ABLC SawToothBrake compatibility: Disc (Center Lock)Rim - inside width: 25mmRim profile: SymmetricalRim finish: UD fiber, adhesive decalsColor (Decal): StandardNipple material: AluminumNipple anti-rotation: Sapim Secure-LocSpoke type: CX-SprintSpoke count: 24Spoke pattern: 2 CrossHubZ: R1 Disc BrakeDriver body type: n/aColour (hub): BlackAxle type (Wheels): TA 12x100Axle material: Aluminum front & rearBearings: Cartridge - Stainless SteelDriver Mechanism: n/aDriver body material: n/aMax tyre pressure: 73psiMax recommended rider weight: 250lbsPart Weight (g): 613Please Note: The below tyre brands have communicated to us that their tubeless models are compatible with our tubeless hookless straight side wheels. Riders wishing to run regular clincher tyres should check with the manufacturer if they are compatible with hookless rims. 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 s 303 Firecrest Tubeless Disc-brake 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. New Zipp graphics and cosmetic identity that scream speedVersatile endurance wheel for the modern road bike with tubeless and hookless rim profileLighter 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 roadNew 40mm rim depth makes a light and aero wheel in every situationNew ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagementShips with 12mm front and rear end capsCentre locking rotor interface. Lock ring is included with the wheelsXDR or SRAM/Shimano driver bodiesCampagnolo driver body sold separatelyDeeply 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 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 is a versatile and durable new hub, the German-engineered ZR1 DB. This hub features 66 points of engagement for quicker response. The 303 Firecrest Tubeless Disc-brake 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.Orientation (wheels): RearSize (wheels): 700cRim construction: CarbonTire compatibility: Clincher Tubeless ReadyRim depth: 40mmSurface texture: ABLC SawToothBrake compatibility: Disc (Center Lock)Rim - inside width: 25mmRim 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 Disc BrakeDriver body type: SRAM/Shimano Road or SRAM XDRColor (hub): BlackAxle type (Wheels): TA 12x142Axle material: Aluminum front & rearBearings: Cartridge - Stainless SteelDriver Mechanism: 6 Pawls Leaf SpringDriver body material: AluminumMax tire pressure: 73psiMax recommended rider weight: 250lbsPart Weight (g): 739Please Note: The below tyre brands have communicated to us that their tubeless models are compatible with our tubeless hookless straight side wheels. Riders wishing to use regular clincher tyres should check with the manufacturer if they are compatible with hookless rims. 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 s 303 Firecrest Tubeless Disc-brake 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. New Zipp graphics and cosmetic identity that scream speedVersatile endurance wheel for the modern road bike with tubeless and hookless rim profileLighter 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 roadNew 40mm rim depth makes a light and aero wheel in every situationNew ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagementShips with 12mm front and rear end capsCentre locking rotor interface. Lock ring is included with the wheelsXDR or SRAM/Shimano driver bodiesCampagnolo driver body sold separatelyDeeply 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 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 is a versatile and durable new hub, the German-engineered ZR1 DB. This hub features 66 points of engagement for quicker response. The 303 Firecrest Tubeless Disc-brake 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.Orientation (wheels): RearSize (wheels): 700cRim construction: CarbonTire compatibility: Clincher Tubeless ReadyRim depth: 40mmSurface texture: ABLC SawToothBrake compatibility: Disc (Center Lock)Rim - inside width: 25mmRim 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 Disc BrakeDriver body type: SRAM/Shimano Road or SRAM XDRColor (hub): BlackAxle type (Wheels): TA 12x142Axle material: Aluminum front & rearBearings: Cartridge - Stainless SteelDriver Mechanism: 6 Pawls Leaf SpringDriver body material: AluminumMax tire pressure: 73psiMax recommended rider weight: 250lbsPart Weight (g): 739Please Note: The below tyre brands have communicated to us that their tubeless models are compatible with our tubeless hookless straight side wheels. Riders wishing to use regular clincher tyres should check with the manufacturer if they are compatible with hookless rims. 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 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 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.
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
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
45mm Deep The 45mm deep 303 Firecrest delivers unmatched aero performance when used with the wide tires that today’s riding demands. Zipp has achieved this with a wide disc-specific rim design featuring ABLC dimples extending all the way to the outer edge of the rim. In addition to achieving AeroBalance™, the industry-leading crosswind stability and low aerodynamic drag that defines all Firecrest wheels, the new 303 Firecrest delivers lower drag than the outgoing version when used with 25c or wider tyres. The aerodynamic performance gap between a narrower rim and the new 303 grows even larger with 28c and wider tyres thanks to a smoother transition between the tyre’s profile and Zipp's new rim shape. Tubeless Rim Designed from the start as a tubeless rim, the 303 Firecrest features a rim bed made with internal ridges to lock the tyre’s bead in place, ensuring secure performance, even when ridden at lower tyre pressures. Setup tubeless and emblazoned with your choice of three colour decal options (optional extra), 303 Firecrest wheels are as alluring as they are easy to use. And should you choose to run tubed tyres, the new 303 is fully compatible. Durable Carbon Layup A new carbon fibre layup keeps weight low while maintaining the 303’s legendary durability. The rim’s lightweight design allows the 303 to glide up the steepest climbs while their robust 77D front hub, paired with 24 Sapim® CX-Ray spokes, keep the wheel stiff and responsive. To ensure compatibility with any bike, Zipp's versatile 77D hub comes with swappable end caps to work with QR’s and thru-axles, including 12x100mm and 15x100mm front thru-axles. And like all Zipp carbon wheels, the new 303 Firecrest is laid up, moulded, drilled and assembled in Indianapolis, USA. Built to take you to places you’ve never been, the 303 Firecrest® Tubeless Carbon Cincher will go the distance. It’ll just take less time. Each Wheel Includes: Zipp Tubeless valve extender and valve-core wrench Zipp rim tape (factory taped) Zipp Tangente quick-release skewer Zipp thru-axle end caps
Specification:Orientation (wheels): Rear,Size (wheels): 700c,Rim construction: Carbon,Tire compatibility: Clincher Tubeless Ready,Rim depth: 40mm,Surface texture: ABLC SawTooth,Brake compatibility: Disc (Center Lock),Rim - inside width: 25mm,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: 24,Spoke pattern: 2 Cross,Hub: ZR1 Disc Brake,Color (hub): Black,Axle type (Wheels): TA 12x142,Axle material: Aluminum front & rear,Bearings: Cartridge - Stainless Steel,Driver Mechanism: 6 Pawls Leaf Spring,Driver body material: Aluminum,Max tire pressure: 73psi,Max recommended rider weight: 250lbs,Part Weight (g): 739.