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Zipp 303 Firecrest Carbon Rear Tubeless Wheel - Black - SRAM XD}, Black
  • £740.00
  • RRP £915.99
  • Saving you £19

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.

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Shimano Dura-Ace R9270 C50 Carbon CL Disc Wheel Black 700c Wheel Sets
  • £739.99

Perfect for flatter courses and time trials, the Dura-Ace C60 prioritizes aerodynamic efficiency and lateral rigidity. The new hub design, stiffer spokes, and deep-section rim are designed specifically to allow you to push harder in corners and ensure that every bit of your effort is translated into forward motion. Like the entire Dura-Ace wheel family, the new C60 started with a blank slate. Different from the C36 and C50, the C60 has a specific front hub design using Shimano's OPTBAL 2:1 spoke pattern to enhance lateral rigidity. The C60 also receives stiffer spokes, 1.8 mm instead of 1.5 mm. Tested by our professional athletes, this focus on the lateral rigidity of C60 allows you to push harder in corners and when manoeuvring at higher speeds. Lastly, the new wind-tunnel tested, deep-section rims feature a faster, more stable cross-section that time trialists, triathletes, and sprinters alike will enjoy. Centre-Lock Disc Rotor Mount The Centre Lock system makes an easy rotor installation possible with a spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency. D2 Aerodynamic Rim Profile Aerodynamic performance is affected by wind direction. To create the D2 rim, Shimano engineers considered both frontal and crosswinds, aiming to achieve optimal performance in real-world riding conditions. Extensive prototype testing, in the wind tunnel and on the road, proved that a wide rim shape with a deep tire bed performs best across a wide range of conditions. At yaw angles ranging from 0 to 15 degrees, the Shimano D2 rim profile reduces air drag better than others aero shape rims. This rim design also boosts lateral wheel stiffness and offers improved vertical compliance for increased control, comfort and durability on the road. Rear Wheel OPTBAL Spoke System The OPTBAL rear wheel spoke system features 21 spokes—14 on the drive side and 7 on the non-drive side. Cassette spacing in today’s wheels produces unbalanced tension in traditional 1:1 spoke systems. This unbalance is intensified with the 11-speed cassette, producing nearly double the tension on the drive side spokes. Generally, high and low tension spokes have respectively tendency toward breaking down and coming loose spoke nipples. Unbalanced tension affects durability and strength. The OPTBAL design rebalances spoke tension, enhancing wheel rigidity and strength for a more durable wheel. Shimano E-Thru Axle System The tool-less type thru-axle skewer system optimizes rigidity and weight balance and enables easy operation with a reliable internal cam mechanism. The 15 mm thru-axle system is 15% stiffer torsionally and 25% stiffer in transverse shear than a traditional 9 mm quick release front axle system. High rigidity is secured while keeping the optimum weight balance. The E-Thru axle hub system minimizes the distortion of suspension while maintaining lightweight for riding around sharp corners at high speed. 

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Shimano Dura-Ace R9270 C50 Carbon CL Disc Wheel Wheel Sets
  • £739.99

The all-rounder of the new Dura-Ace wheel lineup, the C50 is both lighter than the previous C40 model and nearly as aerodynamic as the previous C60. It's a wheelset at home in a wide range of conditions. From time trials to criteriums, on rolling terrain or attempting a personal best, the new C50 is the ideal wheel for spirited road riding. The perfect blend of low weight and aerodynamic performance, the all-new Dura-Ace C50 features an updated all-carbon tubeless rim and new hub design that drops weight while enhancing rigidity. Centre-Lock Disc Rotor Mount The Centre Lock system makes an easy rotor installation possible with a spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency. D2 Aerodynamic Rim Profile Aerodynamic performance is affected by wind direction. To create the D2 rim, Shimano engineers considered both frontal and crosswinds, aiming to achieve optimal performance in real-world riding conditions. Extensive prototype testing, in the wind tunnel and on the road, proved that a wide rim shape with a deep tire bed performs best across a wide range of conditions. At yaw angles ranging from 0 to 15 degrees, the Shimano D2 rim profile reduces air drag better than others aero shape rims. This rim design also boosts lateral wheel stiffness and offers improved vertical compliance for increased control, comfort and durability on the road. Rear Wheel OPTBAL Spoke System The OPTBAL rear wheel spoke system features 21 spokes—14 on the drive side and 7 on the non-drive side. Cassette spacing in today’s wheels produces unbalanced tension in traditional 1:1 spoke systems. This unbalance is intensified with the 11-speed cassette, producing nearly double the tension on the drive side spokes. Generally, high and low tension spokes have respectively tendency toward breaking down and coming loose spoke nipples. Unbalanced tension affects durability and strength. The OPTBAL design rebalances spoke tension, enhancing wheel rigidity and strength for a more durable wheel. Shimano E-Thru Axle System The tool-less type thru-axle skewer system optimizes rigidity and weight balance and enables easy operation with a reliable internal cam mechanism. The 15 mm thru-axle system is 15% stiffer torsionally and 25% stiffer in transverse shear than a traditional 9 mm quick release front axle system. High rigidity is secured while keeping the optimum weight balance. The E-Thru axle hub system minimizes the distortion of suspension while maintaining lightweight for riding around sharp corners at high speed. 

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Zipp 303 Firecrest Carbon Rear Tubeless Wheel - Black - Shimano/SRAM}, Black
  • £739.99
  • RRP £915.99
  • Saving you £19

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.

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Zipp 404 Firecrest Carbon TL Disc Front Wheel 2021 - 700c}, Carbon
  • £739.99
  • RRP £823.99
  • Saving you £10

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.

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Zipp 303 Firecrest Carbon Tubeless Disc Rear Wheel Back Wheels
  • £739.99
  • RRP £915.99
  • Saving you £19

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. Item Top Features Continued: 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 (select option separately) - Campagnolo driver body sold separately

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Shimano Dura-Ace R9270 C50 Carbon CL Disc Wheel - Black - Front}, Black
  • £739.99

Shimano Dura-Ace R9270 C50 Carbon CL Disc WheelThe Dura-Ace R9270 C50 Carbon CL Disc Wheel is Tubeless Ready and features an aerodynamic 50mm-deep-section full carbon rim. Designed and engineered to provide exceptional speed, agility and style, this quality carbon race wheel offers the perfect balance of aerodynamics and crosswind stability at a low weight. And it has a Centre Lock rotor mount for use with disc brakes and the rear wheel is compatible with Shimano HG 11 and 12-Speed cassettes.The all-rounder of the new Dura-Ace wheel line-up, the C50 is both lighter than the previous C40 model and nearly as aerodynamic as the previous C60. It's a wheelset at home in a wide range of conditions. From time trials to criteriums, on rolling terrain or attempting a personal best, the new C50 is the ideal wheel for spirited road riding.The perfect blend of low weight and aerodynamic performance, the all-new Dura-Ace C50 features an updated all-carbon tubeless rim and new hub design that drops weight while enhancing rigidity. Centre-Lock Disc Rotor MountThe Centre Lock system makes an easy rotor installation possible with a spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency. D2 Aerodynamic Rim ProfileAerodynamic performance is affected by wind direction. To create the D2 rim, Shimano engineers considered both frontal and crosswinds, aiming to achieve optimal performance in real-world riding conditions. Extensive prototype testing, in the wind tunnel and on the road, proved that a wide rim shape with a deep tire bed performs best across a wide range of conditions. At yaw angles ranging from 0 to 15 degrees, the Shimano D2 rim profile reduces air drag better than others aero shape rims. This rim design also boosts lateral wheel stiffness and offers improved vertical compliance for increased control, comfort and durability on the road. Rear Wheel OPTBAL Spoke SystemThe OPTBAL rear wheel spoke system features 21 spokes—14 on the drive side and 7 on the non-drive side. Cassette spacing in today's wheels produces unbalanced tension in traditional 1:1 spoke systems. This unbalance is intensified with the 11-speed cassette, producing nearly double the tension on the drive side spokes. Generally, high- and low-tension spokes have respectively tendency toward breaking down and coming loose spoke nipples. Unbalanced tension affects durability and strength. The OPTBAL design rebalances spoke tension, enhancing wheel rigidity and strength for a more durable wheel.Shimano E-Thru Axle SystemThe tool-less type thru-axle skewer system optimizes rigidity and weight balance and enables easy operation with a reliable internal cam mechanism. The 15 mm thru-axle system is 15% stiffer torsionally and 25% stiffer in transverse shear than a traditional 9 mm quick release front axle system. High rigidity is secured while keeping the optimum weight balance. The E-Thru axle hub system minimizes the distortion of suspension while maintaining lightweight for riding around sharp corners at high speed. Features: Series: Dura-Ace R9200 Series All-round tubeless wheels with balanced aerodynamics and lightweight materials 50mm height Full Carbon Rim Internal Rim Width: 21mm Disc Brake Mount: Centre Lock Disc D2 Aerodynamic rim profile Axle System: 12mm E-Thru / Hub Spacing (O.L.D.): Front: 100mm; Rear: 142mm Freehub: Shimano 12-Speed (Compatible only with Shimano road 12-Speed cassette sprockets) Tyre Type: Clincher Tubeless; Recommended Tyre Size: 25-622 - 32-622 Weight: 787g (rear); 674g (front)A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano Dura-Ace R9270 C60 Carbon CL Disc Wheel - Black - Front}, Black
  • £739.99

Shimano Dura-Ace R9270 C60 Carbon CL Disc WheelThe Dura-Ace R9270 C60 from Shimano features a quality full-carbon 60mm-deep Tubeless Ready rim and a Centre Lock disc rotor mount. This wheel is fast, agile and stable, and it's optimised with Shimano D2 Aerodynamic Rim Profiling - it's the ideal wheel design for time trial, triathlon and criterium events. And the rear wheel is compatible with Shimano HG 11 and 12-Speed cassettes.Perfect for flatter courses and time trials, the Dura-Ace C60 prioritizes aerodynamic efficiency and lateral rigidity. The new hub design, stiffer spokes, and deep-section rim are designed specifically to allow you to push harder in corners and ensure that every bit of your effort is translated into forward motion. Like the entire Dura-Ace wheel family, the new C60 started with a blank slate. Different from the C36 and C50, the C60 has a specific front hub design using Shimano's OPTBAL 2:1 spoke pattern to enhance lateral rigidity. The C60 also receives stiffer spokes, 1.8 mm instead of 1.5 mm. Tested by our professional athletes, this focus on the lateral rigidity of C60 allows you to push harder in corners and when manoeuvring at higher speeds. Lastly, the new wind-tunnel tested, deep-section rims feature a faster, more stable cross-section that time trialists, triathletes, and sprinters alike will enjoy. Centre-Lock Disc Rotor MountThe Centre Lock system makes an easy rotor installation possible with a spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency. D2 Aerodynamic Rim ProfileAerodynamic performance is affected by wind direction. To create the D2 rim, Shimano engineers considered both frontal and crosswinds, aiming to achieve optimal performance in real-world riding conditions. Extensive prototype testing, in the wind tunnel and on the road, proved that a wide rim shape with a deep tire bed performs best across a wide range of conditions. At yaw angles ranging from 0 to 15 degrees, the Shimano D2 rim profile reduces air drag better than others aero shape rims. This rim design also boosts lateral wheel stiffness and offers improved vertical compliance for increased control, comfort and durability on the road. Rear Wheel OPTBAL Spoke SystemThe OPTBAL rear wheel spoke system features 21 spokes—14 on the drive side and 7 on the non-drive side. Cassette spacing in today's wheels produces unbalanced tension in traditional 1:1 spoke systems. This unbalance is intensified with the 11-speed cassette, producing nearly double the tension on the drive side spokes. Generally, high and low tension spokes have respectively tendency toward breaking down and coming loose spoke nipples. Unbalanced tension affects durability and strength. The OPTBAL design rebalances spoke tension, enhancing wheel rigidity and strength for a more durable wheel. Shimano E-Thru Axle SystemThe tool-less type thru-axle skewer system optimizes rigidity and weight balance and enables easy operation with a reliable internal cam mechanism. The 15 mm thru-axle system is 15% stiffer torsionally and 25% stiffer in transverse shear than a traditional 9 mm quick release front axle system. High rigidity is secured while keeping the optimum weight balance. The E-Thru axle hub system minimizes the distortion of suspension while maintaining lightweight for riding around sharp corners at high speed. Features: Series: Dura-Ace R9200 Series HR: High-Rigidity ver. +20% increased lateral rigidity for powerful riders and sprinters 60 mm height full Carbon rim Internal rim width: 21 mm Disc Brake Mount: Centre Lock Disc D2 Aerodynamic rim profile Axle System: 12 mm E-Thru / Hub Spacing (O.L.D.): Front: 100mm; Rear: 142mm Freehub: Shimano 12-Speed (Compatible only with Shimano road 12-Speed cassette sprockets) Tyre Type: Clincher Tubeless; Recommended Tyre Size: 25-622 - 32-622 Weight: 858g (rear); 751g (front)A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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DT Swiss Arc 1400 Dicut Rear Road Wheel (62mm) - Carbon - 130mm Shimano, Carbon
  • £729.99
  • RRP £1089.99
  • Saving you £33

DT Swiss Arc 1400 Dicut 62mm Rear WheelDesigned for fast-paced road cycling, this rear wheel uses its deep carbon rim and aero-centric hub to keep you rolling with power and speed on every outing. The carbon rim and its 62mm depth, means that you'll enjoy its superb stability through the toughest of terrain conditions. The 17mm internal width of the rim also ensures an agile and well-balanced performance as you break away from the pack or take on climbs. The tubeless-ready profile also minimises the overall weight for a more streamlined experience.Features: Rim Material: Carbon Rim Dimensions: Internal Rim Width: 17mm; External Rim Width: 27mm; Rim Height: 62mm Spokes: DT Aero Comp straightpull with DT ProLock Hidden aluminium nipples, 2-cross lacing Hub Type: DT240 Hub Axle Type: 100x5mm QR Freehub: Ratchet System 18, Shimano 11-speed Tubeless-Ready: Yes Brake Standard: Rim Brake Recommended Maximum Weight: 100kg Includes: RWS Steel, Tubeless tape 19mm, TL Vent aluminium black 49-65mm, Swissstop black prince, valve guardBuy DT Swiss Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Zipp 404 Firecrest Carbon Tubeless Disc Brake Rear Wheel - Shimano/SRAM
  • £729.99
  • RRP £865.00
  • Saving you £16

Zipp’s 404 Firecrest Tubeless Disc-brake is the icon of speed with three decades of use. The 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, and gran fondos. The wheelset’s 23mm internal width is perfect for running wider tubeless tires at reduced air pressure. That is a vital component of Total System Efficiency, or TSE, an approach to speed on ever-changing roads and riding conditions. Specifically, TSE focuses on overcoming specific barriers to speed: wind resistance, gravity, rolling resistance, and vibration losses. Zipp’s ABLC Sawtooth Technology uses an intricate dimpling pattern to improve aero efficiency. Zipp’s use of hookless (straight side) rims in the 404 Firecrest is integral to Making You Faster. With hookless, 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, stronger wheels. Outdoor testing commissioned by Zipp revealed the real-world gains of Zipp TSE. A bike- and-rider system weighing 85kg (187lbs) on the new 404 Firecrest with 25mm tires required 286 watts to maintain a speed of 40kph. That’s a 4-watt savings compared with the previous model 404 Firecrest. At the center of the 404 Firecrest Tubeless Disc-brake is a versatile and durable hubset, the German-engineered ZR1 DB. If you had to choose just one wheel for road riding and racing, the 404 Firecrest Tubeless Disc brake is a savvy and speedy choice. Technology: Total System Efficiency ABLC Dimples Features: Versatile race wheelset for the modern road race bike with tubeless and hookless rim profile Optimized tire bed for easy tire installation Wide 23mm rim profile creates a better tire interface to be fast on or off the road 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 The 404 Firecrest Tubeless Disc-brake is about 370 grams lighter than its predecessor 1450g wheelset* Front 660g Rear 790g Lifetime Warranty *Lightest configuration: 12mm through axles and XDR body. No tape or valve included in weight

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Zipp 303 Firecrest Carbon Tubeless Disc Brake Rear Wheel - Shimano/SRAM
  • £729.99
  • RRP £915.00
  • Saving you £20

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

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Vision TC 55 Disc Carbon Clincher Road Wheelset
  • £729.00
  • RRP £949.95
  • Saving you £23

Vision TC 55 is the newest range of light and versatile carbon racing wheels, with a 55mm rim depth in disc brake format. They have been developed using extensive wind tunnel testing and on the road with professional cyclists of our sponsored teams, offering a great balance of performance and light weight at a competitive price.Full Carbon 55mm depth rim,Tubeless ready - clincher,Centerlock rotor mount,6 sealed cartridge bearings (2F + 4R),J-Bend spokes 24F / 24R,TA-12 and X-12,Artisan built, entirely by hand,Includes rim tape (clincher), spoke protector.FREEHUBAlloy freehub,Shimano 10-11sp,SRAM XDR.ADAPTERSFront - QR and TA-15 (available separately),Rear - QR (available separately).

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