Shimano Ultegra R8070 Di2 2x11 Speed STI ShifterThis Shimano Ultegra R8070 Di2 2x11-Speed STI Shifter offers an increase in accuracy and shifting precision, delivering a more intuitive operation. The updated ergonomic design of this Shimano Ultegra R8070 Di2 2x11-Speed STI Shifter clearly separates the shift buttons so you can shift easily and efficiently, even in the depths of winter when you're wearing thick gloves.Designed for Hydraulic BrakesThe R8070 dual control lever is designed specifically for use with hydraulic brakes for excellent rider feel and control in all conditions.Multi-ShiftEach switch on this Shimano Ultegra R8070 Di2 2x11-Speed STI Shifter can be used to multi-shift. Additionally, the top hood buttons can be programmed and customised through the Shimano E-Tube app or PC software to control third-party devices.Features:Material: Carbon Fibre (brake lever)Ergonomic design with greater reachLight action, define click engagement, vivid index shiftingUpdated internal shifting unitPowerful and controllable braking systemControl third-party devicesMulti-shift functionExcellent control in poor weather conditionsWeight: 148gTechnologies:Di2: The power and precision of Di2 is unmatched. It enables beautifully smooth shifting both front and rear. The lack of maintenance and adjustment is impressive: once you’ve customised your Di2 to shift to your preferences, it will continue to do so endlessly.E-Tube: Change all Di2 functions and operations through the shifter buttons behind the brake levers, the top hood buttons or satellite buttons for TT/Triathlon, sprinting and climbing. You can easily customise shift speed, multi-shift options and Synchro Shift. You can also customise the top hood buttons to control third party-devices, for example to scroll through bike computer menus. The functionality on third-party computers also allows you to display Di2 system information, such as battery level and the gear you’re in.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.
Shimano Ultegra R8050 Di2 11 Speed LeverThis rim brake compatible version of the Shimano Ultegra R8050 Di2 11 Speed Lever brings precise, effortless gear shifts and responsive braking control when riding at speed. Its control functions can also be customised to suit your preferences.A clearer separation between the shift buttons on the Shimano Ultegra Di2 shifter ensures precise shifting, even when wearing thicker gloves. Each switch can be used for multi-shift ON or OFF and top hood buttons can be programmed to control third-party devices. All functions can be customised through the Shimano E-Tube app or PC software.Features: Speed: Front: 2-Speed; Rear: 11-Speed Compatibility: All Shimano road Di2 E-Tube electronic drivetrains Brake Compatibility: Rim brakes or cable operated disc brakes Use: Road Single or Pair: Single Cable Supplied: No Handlebar Clamp Diameter: Standard 23.8mm Clearer separation between shift buttons support quick and precise shifting when wearing thicker gloves Manufacturer's Part Number: ST-R8050 Weight: 148gA 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.
Shimano Ultegra R8050 Di2 11 Speed LeverThis rim brake compatible version of the Shimano Ultegra R8050 Di2 11 Speed Lever brings precise, effortless gear shifts and responsive braking control when riding at speed. Its control functions can also be customised to suit your preferences.A clearer separation between the shift buttons on the Shimano Ultegra Di2 shifter ensures precise shifting, even when wearing thicker gloves. Each switch can be used for multi-shift ON or OFF and top hood buttons can be programmed to control third-party devices. All functions can be customised through the Shimano E-Tube app or PC software.Features: Speed: Front: 2-Speed; Rear: 11-Speed Compatibility: All Shimano road Di2 E-Tube electronic drivetrains Brake Compatibility: Rim brakes or cable operated disc brakes Use: Road Single or Pair: Single Cable Supplied: No Handlebar Clamp Diameter: Standard 23.8mm Clearer separation between shift buttons support quick and precise shifting when wearing thicker gloves Manufacturer's Part Number: ST-R8050 Weight: 148gA 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.
Shimano Ultegra R8020 2x11 Speed STI ShifterThis Shimano Ultegra R8020 2x11 Speed STI Shifter offers an increase in accuracy and shifting precision over earlier models. The updated ergonomic design of this Ultegra R8020 2x11 Speed STI Shifter has a greater reach for adjusting your break and gear levers and has an updated internal shifting unit to offer quick and intuitive shifting. Designed for Hydraulic BrakesThe R8020 dual control lever is designed specifically for use with hydraulic brakes for excellent rider feel and control in all conditions.Features:Material: Carbon Fibre (brake lever)Shift Cable: Polymer coatedErgonomic design with greater reachLight action, define click engagement, vivid index shiftingUpdated internal shifting unitPowerful and controllable braking systemNote: Supplied with inner gear cables only and does not include brake cables.Weight: 219gA 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.
Shimano Ultegra R8000 11 Speed Shifter SetThe Shimano Ultegra R8000 2x11 speed shifter set has a light shift action and economical design, paired up with carbon lever blades. Developed to work with the R8000 front and rear mechanical derailleurs.This Shimano Ultegra R8000 2x11-Speed STI Shifter Set offers an increase in accuracy and shifting precision over earlier models. The ergonomic design of this Ultegra R8000 2x11-Speed STI Shifter Set has a greater reach for adjusting your break and gear levers and has an updated internal shifting unit to offer quick and intuitive shifting.Features:Material: Carbon Fibre (brake lever)Shift Cable: Polymer coatedErgonomic design with greater reachLight action, define click engagement, vivid index shiftingUpdated internal shifting unitPowerful and controllable braking systemCompatibility: For use with R8000 mechanical front and rear derailleursNote: Supplied with inner gear cables only and does not include brake cables.Weight: 438g (Set)
Shimano Ultegra R8100 12 Speed Power MeterThe Ultegra R8100 12 Speed Power Meter from Shimano is the ideal chainset to track your cycling performance output. It features Hollowtech II crankarms, a Hollowglide outer chainring and an ultra-precise integrated power meter. This top-quality power meter provides 1.5% strain gauge accuracy and up to 300+ hours of battery life, so you can accurately record your power output as you ride. And it's compatible with ANT+ and Bluetooth LE to communicate with your favourite cycling apps and computer software.Offering all the precision and functionality of the 12-Speed Shimano Dura-Ace power meter, the Ultegra FC-R8100-P power meter comes in a more affordable package. Scientific training requires accurate measurement and user-friendliness, and the new Ultegra R8100 power meter has both. Its dual-sided measurement is accurate within 1.5% and zero offset calibration is a quick and easy process. Perhaps most importantly, its long battery life, easy recharge, and ANT+ and BluetoothLE connectivity make using and recording your workouts easier than ever. Bluetooth LE and ANT+ ConnectivityThe Ultegra R8100 Power Meter brings everything a data-driven cyclist could want. Its integrated, waterproof design brings all-weather reliability while delivering accurate information including left/right balance. A rechargeable Li-ion battery is user-friendly and Bluetooth LE and ANT+ connectivity ensure easy setup. Hollowglide Chainring TechnologyHollow technology on the outer chainring. The Hollowglide construction ensures high rigidity while its hollow structure cuts down on weight yet maintains strength. This provides better power transfer and quicker and more precise front shifting performance. Hollowtech II Forged Crank ArmsA lightweight crankset not only reduces the bike's weight but decreases rotating mass to aid in acceleration. The challenge is to reduce the weight of the crank without reducing its strength and rigidity. Shimano's advanced forging technology has solved the problem through the HOLLOWTECH crank. Just like high-quality frame tubing, a hollow crank arm can provide amazing strength and rigidity at very lightweight. The Best Balance of Stiffness, Strength and WeightThe concept of Hollowtech II technology is focused on producing a superior crankset that will maximize a rider's power transfer. The rigidity of the crankset ensures pedalling efficiency while its low weight, a key element of the crankset, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedalling stability, allowing for more efficient power transfer. Features: Series: Ultegra R8100 Series Integrated, waterproof, and rechargeable Li-ion battery Up to 300+ hours of ride time * Depending on ANT+/BluetoothLE settings Accurate data collection 1.5% strain gage accuracy throughout the entire calibration range * Depending on ANT+/BluetoothLE settings Proprietary strain gauge Possible to start quickly Simple zero offset calibration with switch on the transmitter Active temperature compensation - the software automatically compensates for temperature changes Weight: 769g (52-36T); 758g (50-34T)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.
Shimano Ultegra R8100 12 Speed Power MeterThe Ultegra R8100 12 Speed Power Meter from Shimano is the ideal chainset to track your cycling performance output. It features Hollowtech II crankarms, a Hollowglide outer chainring and an ultra-precise integrated power meter. This top-quality power meter provides 1.5% strain gauge accuracy and up to 300+ hours of battery life, so you can accurately record your power output as you ride. And it's compatible with ANT+ and Bluetooth LE to communicate with your favourite cycling apps and computer software.Offering all the precision and functionality of the 12-Speed Shimano Dura-Ace power meter, the Ultegra FC-R8100-P power meter comes in a more affordable package. Scientific training requires accurate measurement and user-friendliness, and the new Ultegra R8100 power meter has both. Its dual-sided measurement is accurate within 1.5% and zero offset calibration is a quick and easy process. Perhaps most importantly, its long battery life, easy recharge, and ANT+ and BluetoothLE connectivity make using and recording your workouts easier than ever. Bluetooth LE and ANT+ ConnectivityThe Ultegra R8100 Power Meter brings everything a data-driven cyclist could want. Its integrated, waterproof design brings all-weather reliability while delivering accurate information including left/right balance. A rechargeable Li-ion battery is user-friendly and Bluetooth LE and ANT+ connectivity ensure easy setup. Hollowglide Chainring TechnologyHollow technology on the outer chainring. The Hollowglide construction ensures high rigidity while its hollow structure cuts down on weight yet maintains strength. This provides better power transfer and quicker and more precise front shifting performance. Hollowtech II Forged Crank ArmsA lightweight crankset not only reduces the bike's weight but decreases rotating mass to aid in acceleration. The challenge is to reduce the weight of the crank without reducing its strength and rigidity. Shimano's advanced forging technology has solved the problem through the HOLLOWTECH crank. Just like high-quality frame tubing, a hollow crank arm can provide amazing strength and rigidity at very lightweight. The Best Balance of Stiffness, Strength and WeightThe concept of Hollowtech II technology is focused on producing a superior crankset that will maximize a rider's power transfer. The rigidity of the crankset ensures pedalling efficiency while its low weight, a key element of the crankset, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedalling stability, allowing for more efficient power transfer. Features: Series: Ultegra R8100 Series Integrated, waterproof, and rechargeable Li-ion battery Up to 300+ hours of ride time * Depending on ANT+/BluetoothLE settings Accurate data collection 1.5% strain gage accuracy throughout the entire calibration range * Depending on ANT+/BluetoothLE settings Proprietary strain gauge Possible to start quickly Simple zero offset calibration with switch on the transmitter Active temperature compensation - the software automatically compensates for temperature changes Weight: 769g (52-36T); 758g (50-34T)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.
Shimano Ultegra R8170 C60 Carbon CL Rear Disc WheelThe Ultegra R8170 C60 Carbon CL Disc Wheel from Shimano features a 60mm-deep full-carbon rim that's ideal for high-speed and flatter race events. Suited to time trial and triathlon races, this wheel is tubeless ready for fast rolling speeds, low rolling inertia and exceptional grip in all conditions. And it's compatible with Shimano 11 and 12-Speed gear systems and it features a centre lock rotor mount for use with disc brakes.Designed for the highest speed environments and modern tyre widths, the Ultegra C60 wheelset shares its all-carbon rim profile with Dura-Ace but employs a hub that is compatible with both 11 and 12-speed cassettes. For situations where aerodynamics is the priority, the new Ultegra R8170 C60 wheelset features an all-carbon, 21 mm internal, tubeless compatible rim and a super-fast cup and cone bearing hub that is compatible with both 11 and 12-speed cassettes.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. Features: Series: Ultegra R8100 Series Rim: Carbon Tubeless Ready 60 mm height full carbon rim Internal Rim Width: 21mm Shared rim profile with R9200 Dura-Ace wheels Improved aerodynamics Axle Size: 12x142mm Rear Speeds: 11/12-Speed Shimano Disc Rotor Mount: Centre Lock Single or Pair: Single, rear wheel only Weight: 911gA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano Ultegra R8170 C50 Carbon CL Disc WheelThe Shimano Ultegra R8170 C50 Wheel features a 50mm-deep full carbon tubeless ready rim with Shimano D2 rim profiling. This rim offers exceptional aerodynamic efficiency and agility while maintaining stability and control during strong cross winds. Suited to climbing sessions, long-distance fast events and epic endurance rides, this wheel features a centre lock disc rotor mount and is compatible with Shimano 11 and 12-Speed drivetrain systems.Balancing aerodynamics, weight, and affordability, the new Ultegra R8170 C50 wheelset is sure to inspire action on your group ride with its all-new tubeless carbon rim and updated, 12 and 11-speed compatible hub. Summiting climbs, carving descents, or cruising the flats, the new C50 is the jack of all trades among the new Ultegra R8170 wheel lineup. The tubeless, carbon rim features a 21 mm internal width that pairs nicely with wider, modern tires while the HYPERGLIDE cassette body is compatible with 11 and 12-speed cassettes. 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. 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. 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. Features: Series: Ultegra R8100 Series Rim: Carbon Tubeless Ready 50mm height full carbon rim Internal Rim Width: 21 mm Shared rim profile with R9200 Dura-Ace wheels Improved aerodynamics Axle: 12 mm E-THRU Rear Speeds: 11/12-Speed Shimano Disc Rotor Mount: Centre Lock Weight: Front: 698g; Rear: 872gA 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.
Shimano Ultegra R8170 C36 Carbon CL Disc WheelThe Ultegra R8170 C36 Carbon CL Disc Wheel from Shimano is the ideal aerodynamic and Tubeless Ready road race wheel for steep climbing events, fast sprints and versatile all-day riding performance. Full carbon rim construction with Shimano D2 rim profile and a centre lock disc rotor mount, this top-tier road bike wheel is stiff, flex free, aerodynamically optimised, will ensure exceptional braking efficiency in all weather conditions.With a shallow-depth aero profile and lively acceleration, the Ultegra R8170 C36 wheelset is a climber's delight that delivers performance every road rider will appreciate. With the speed and efficiency of tubeless tyres, the everyday performance of a shallow, aero profile carbon rim, and the convenience of 11 and 12-speed compatibility, the new Ultegra R8170 C36 wheelset is an upgrade for any road bike. 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. 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. 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. Features: Series: Ultegra R8100 Series Rim: Carbon Tubeless Ready 36 mm height full Carbon rim Internal Rim Width: 21 mm Shared rim profile with R9200 Dura-Ace wheels Improved aerodynamics Axle: 12 mm E-THRU Disc Rotor Mount: Centre Lock Rear Speeds: 11/12-Speed Shimano Weight: Front: 657g; Rear: 831gA 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.
Shimano Ultegra RS700 C30 Road Front WheelThis clincher front wheel is tubeless ready and is a dependable performer. Featuring a smooth carbon surface mixed with a high-level alloy construction, this model is developed to provide exceptional efficiency, acceleration & stability. The hubs feature high-quality contact seals and the legendary, highly adjustable Shimano cup and cone bearings that provide silky smooth rolling prowess and consistent performance. This wheel has been laced using high-end straight-pull, double-butted aero spokes for increased aerodynamics and dramatically increases stiffness and rigidity, which is very noticeable when sprinting and powering out the watts.Features: Rim Material: Carbon, Aluminium Braking Surface Material: Aluminium Hub Material: Aluminium Spokes Material: Stainless Steel Freehub Body Material: Steel Use: Road Tyre Type: Clincher, Tubeless Ready Rim Profile: 28mm Rim Width: External: 20.8mm; Internal: 15mm Braking System: Rim brake Axle Compatibility: Quick Release Spoke Type: Straightpull, double butted, aero Spoke Count: 21 (crossed) Freehub: 10, 11 speed Single or Pair: Single front wheelA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano Ultegra RS700 C30 TL Road WheelsetCarefully engineered by Shimano to deliver responsive handling and direct rider to road power transfer, the Ultegra RS700 C30 TL Road Wheelset is an ideal choice for demanding cyclists. Rolling on a carbon fibre rim with an alloy braking surface, it brings you efficient acceleration and a low overall weight. A front and rear specific rim height profile give you the ideal balance of crosswind stability and rigidity.Road Wheels with Sealed HubsThe hubs feature high-quality contact seals combined with cup and cone bearings that provide smooth rolling and consistent performance. The rear wheel features Shimano OPTBAL 2:1 spoke lacing, where the drive side has twice as many spokes as the non-drive side. This 2:1 spoke lacing increases stiffness and rigidity, and is especially noticeable when putting the power down.Features: Material: Rims: Carbon; Braking Surface: Aluminium; Hubs: Alloy; Spokes: Stainless Steel; Freehub Body: Steel; Nipples: Aluminium Tyre Type: Clincher Tubeless Ready: Yes Rim Profile: Front: 24mm; Rear: 28mm Rim External Width: 20.8mm Rim Internal Width: 15mm Braking System: Rim brake Axle Compatibility: Quick Release Spoke Type: Straightpull, double butted, aero Spoke Count: Front: 16 (radial); Rear: 21 (crossed) Minimum Valve Length: 40mm Weight: 1.56kgBuy Shimano Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.