The new Racing 5 DB wheels are the perfect choice for endurance bikes. The lower aerodynamic resistance and decreased stiffness, achieved with the lower 24 mm U-shaped profile, makes them the ideal technical choice for long rideswithout having to worry about climbing, rain or wind, with a consequent saving in energy and increased comfort. In this case to the aluminium rim has seen an increase in the inner channel width, up to 20 mm from the previous model’s 17 mm, and the addition of the innovative 2 Way Fit system, to comfortably fit 25-28 mm tyres, both clinchers and tubeless (tubeless tape installed and valves included). The aesthetics have undergone the same intervention as the Racing 4 DB model, with the new laser etched graphics, ensuring the long life of their striking design.Key Features:TYRE TYPE2-Way Fit™ Ready (Clincher/Tubeless ready) ,TYRE SIZE700c ,DISCIPLINERoad ,ASTM CATEGORY2 ,WEIGHT1660g ,RIM MATERIALAluminium ,RIM MATERIAL DETAILSAluminium ,PROFILE HEIGHTLow ,RIM HEIGHTFront and rear 24 mm ,RIM WIDTH25 mm ,INNER RIM WIDTH (CHANNEL)20 mm ,BRAKING SYSTEMDisc brake ,BRAKING SURFACE/ BRAKES OPTIONSAFS™ ,FRONT AXLE COMPATIBILITYHH12-100 ,REAR AXLE COMPATIBILTYHH12-142 ,FRONT WHEEL SPOKES24, Left 16 - Right 8 ,REAR WHEEL SPOKES 24, Left 8 - Right 16 ,SPOKES: MATERIALStainless steel ,SPOKES: PROFILE TECHNOLOGYRounded, straight pull ,NIPPLESAluminium ,FRONT HUBAluminium, Aluminium flanges ,REAR HUBAluminium, Aluminium flanges ,BEARINGSSealed cartridge bearings, adjustable ,OTHERSLasered + Stickers ,WEIGHT LIMIT (SYSTEM)120 kg ,FWB VERSIONHG11, XDR, N3W .
Exceptionally lightweight and well-ventilated full-face protection tailored to the challenges of enduro racing.The ultimate in lightweight full-face protection, the new Otocon is a highly ventilated helmet made for the pressures of enduro. A ventilation design that directs air through the helmet helps keep you comfortable whether racing downhill or giving full effort uphill. Features including a patented breakaway peak, the integrated Race Lock adjustment system and a dual-material liner with parts in multi-impact EPP, work together to extend protection and comfort for all kinds of riding. Removable cheek pads and a removable grill over the mouth give more flexibility to control ventilation, ideal while riding the climbing sections during long enduro races.
SRAM Force 22 11 Speed Road ShiftersThe new SRAM Force 22 ErgoDynamic Shifters were modeled after the best in class comfort of SRAM RED, and represent the most advanced thinking yet on perfecting the interface between rider and bike.Everything received the same detail, including the transition between handlebar and hoods, the grip texture, finger wrap, and the separate interfaces with both the shifter and brake lever. The understated black finish makes it look fast and a perfect match for any machine.“SRAM call this 'True 22' because you can cross chain with their system - you can run the chain on the larger chainring and the largest sprocket, and the smaller chainring and the smallest sprocket...whereas Shimano and Campagnolo tell you specifically not to do this.” - Road CCFeatures:Incredibly light weight at the bars, improving handling and control, at 307 gramsErgoFit textured body improves grip and finger wrap with reduced diameter, providing better control, and a better transition to the barIndividual Reach Adjust of brake and shift lever, now easier to access and uses a standard hex key, puts the controls exactly where you want themLarger ErgoBlade lever improves shifting from the dropsDoubleTap technology delivers both shifts from the single leverZeroLoss shifting, shifts engage immediatelyNew clamp allows better fit and adjustment for modern carbon and ergo barsWeight: 307g (pair)Speeds: 2 (Front) & 11 (Rear)Compatibility: SRAM RED 22 & Force 22 Yaw Front Derailleurs, Exact Actuation Rear DerailleursTechnology Highlight(s): DoubleTap, ErgoDynamics, ZeroLossMaterial: Carbon Brake Lever, Aluminum Shift Lever, Textured Hood CoversDoubleTap: DoubleTap technology makes the leap to the flatbar 9 and 10-speed bikes, delivering smooth up and down shifts are lightning fast. The shift lever is adjustable for quick customization and the gear indicator is easy to see for quick referenceErgoDynamics: It consists of three separate elements to significantly improve your riding experience on SRAM DoubleTap controls. The brake lever is slightly longer than previous DoubleTap road controls to enhance the reach from the drops. The independent reach adjust features on the brake and shift levers are easier to access to quickly adjust for every hand size. Finally, the shape of the hoods has been completely redesigned with a smaller diameter and higher top shape to increase the rider's control and improve finger wrapYaw: The front derailleur cage rotates to maintain a consistent angular relationship with the chain. Yaw eliminates the need for shifter trim. As a result, shifts feel more direct, more precise, and combined with the new RED crankset and chainrings, delivers an unmatched performance advantage in front shiftingZero Loss: Zero- Loss simply means, well, zero loss—when you push on the lever, for an upshift or down shift, the cable is engaged instantly—zero loss of movement. There is no middle-ground where you're waiting for the shift to come. Gear changes are instant and preciseBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Red GXP Compact 2x11 Speed Road ChainsetThe SRAM Red Compact chainset features a completely hollow construction all the way to the spider. Its hidden bolt pattern makes better use of carbon fibre to further improve stiffness and shed weight. It's also equipped with X-GlideR chainrings, which provide seamless, flawless performance and compatibility with SRAM's Yaw front derailleur.This version of the SRAM Red chainset uses their GXP bottom bracket system, which makes it compatible with most Road frame's bottom bracket shell types. It is also equipped with a compact Road 50/34T chainring setup, making it ideal for training on, club rides and sportives.Already a legend in its time, the SRAM Red chainset now features refreshed graphics to complement the new SRAM Red eTap componentry.Features: Arm Material: Carbon Chainring Material: Machined Alloy Compatibility: SRAM Red & SRAM Force Yaw front derailleur, SRAM Red 22 & PC1170 chains Finish: Carbon BCD: 110mm Tooth count: 50/34T SRAM Road 11-speed compatible Designed for GXP bottom brackets Exogram technology uses a large, hollow cross section all the way to the spider, minimising weight while maximising stiffness SRAM's stiffest crank ever Hidden bolt pattern leverages the characteristics of Carbon Fibre while presenting a sleek appearance Stiffer X-GlideR chainrings feature thicker construction and advanced shift timing pins and ramps, which are optimised for shifting with the Yaw front derailleur Weight: 609g (GXP 172.5mm 53x39T, BB not included)Technologies: Exogram: The new Hollow Carbon Construction starts in the crank arm and extends into the cranks' spider. It maximises the stiffness to weight ratio. X-GlideR Chainrings: The chainrings are designed for an optimised shifting performance with the Yaw front derailleur. The stiffer rings (5mm 7075-T6 aluminium CNC-machined) feature upshift rivets with an advanced design adopted from SRAM XX. CNC machining allows for precision control of each tooth shape, ramp, and nearly every shifting feature of the chainring. The chainrings, chain, and front derailleur are designed as a single integrated system for optimised performance.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Force XPLR eTap AXS Rear DerailleurThis road bike rear derailleur features a tough aluminium build and wireless technologies for greater precision, customisation and control wherever your ride takes you. Its durable aluminium construction makes it more than capable of handling the changes to the terrain conditions and the consistent gearing that comes with it on your travels. SRAM has also kitted out this model with high-quality steel pulley bearings and larger X-Sync pulleys, so riders can enjoy increased strength and efficiency. Another benefit is its Orbit chain management technology, which makes shifting easier and quieter as you clock up the miles.Road Bike Rear Derailleur with AXS Wireless ConnectivityIf your ride doesn't feel complete until you get a little dirt on your tyres, you know the importance of capable components that can tackle anything. The Force XPLR eTap AXS rear derailleur is a dedicated 1x-specific unit designed for use with the XPLR 10-44 cassette. It makes for an uncluttered drivetrain that takes on pavement and singletrack with equal assurance. Wireless and proven eTap shift logic, AXS connectivity and advanced chain management mean this derailleur does exactly what you want when you need it.- Wireless electronic eTap shift logic for intuitive shifting, easy setup and reliability- Orbit chain management technology keeps the drivetrain quiet and secure- 1x specific for use with 10-44 XPLR and 10-36 cassettes- SRAM AXS enabled, allowing easy personalisation- Larger X-SYNC pulleys for increased durability and efficiency- Compatible with existing eTap batteriesFeatures: Cage Material: Aluminium Pulley Bearings Material: Steel Use: Road Speed: 12 speed Cage Size: Medium Max Tooth: 44T Manufacturer's Part Number: 00.7518.158.000 Please Note: Battery not included, available separatelyTechnologies: AXS Enabled: AXS is SRAM's bike component integration system that connects electronic bicycle components and software. Control: AXS lets you connect your AXS-enabled components to a mobile app, where you can assign custom actions to your controls. Everything speaks the same language, and you can even combine road and mountain bike parts to build the party bike of your dreams. Personalise: Wireless controls open the door to new levels of customisation. With AXS, you can personalise your component behavior to match your riding style and preferences. Turn on enhanced shifting modes, or reassign shifting actions. Measure: The AXP Mobile App and AXS Web allow you to monitor your bike's performance and readiness. It's an easy way to keep tabs on your battery levels—including the CR2032 batteries in eTap shift levers—and keep AXS component firmware up-to-date. AXS Web analyses your ride files specific to shifting, gear use, power zones, and tyre pressure, so that you can quickly and easily learn more about how your bike is working for you and consider adjustments. X-Sync: SRAM X-SYNC chainrings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain earlier than traditional triangle-shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1x drivetrain. Accept no imitation. Orbit: Orbit technology is an innovative form of derailleur motion control. It utilises silicon fluid as part of an elegant and ultra-lightweight damper system. Compared to a standard friction clutch system, Orbit technology places no additional resistance on the rear derailleur's spring when under slow or light movement. This means easier shifting and rear wheel removal. And while riding, the fluid damper reduces chain bounce.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
WTB CZR i30 TCS 2.0 Carbon MTB RimThis high-quality mountain bike (MTB) rim is equipped with an asymmetrical carbon rim design, which makes it lighter overall, more impact resistant and laterally stiffer while remaining vertically compliant. This makes it a great choice of upgrade for trail, cross-country and enduro riders who want a strong and dependable rim that won't add any unnecessary grams to their ride. With reinforced spoke beds, proven 4D angled spoke hole drilling and a 30mm inner rim width, this model is incredibly durable as you tackle whatever the off-road terrain has to offer.Lightweight Carbon MTB RimWTB's flagship CZR carbon rim delivers minimal rotational weight and fine-tuned compliance to make you feel at one with the terrain. Reinforced spoke holes, TCS 2.0 technology, an asymmetrical design and two years of development make it one of the most dependable carbon rims on the market. CZR rims set themselves apart from the pack by providing unbeatable strength and ride quality at a more affordable price. Sold individually.Features: Material: Carbon, Asymmetrical design Use: MTB, Cross-Country, Trail and Enduro Wheel Size: 29" Inner Rim Width: 30mm Spoke Hole Count: Multiple options available to select, 5mm offset ERD: 589 ETRTO: 30-622 Tubeless Tape Width: 35mm Max Rider Weight: 136kg Weight: 28H: 472g; 32H: 484gTechnologies: TCS 2.0 Technology: Built upon WTB's proven Tubeless Compatible System, TCS 2.0 introduces a more robust, easily installed, and dependable tubeless system. A recessed channel along the centre of TCS 2.0 rims allows for the installation of the Solid Strip, which prevents tubeless tape from sagging at the spoke holes and results in a smooth, consistent interface between the tyre and rim. Once the Solid Strip is installed, TCS Tape is then applied to provide the airtight seal needed for a reliable tubeless system.Manufacturer's Part Numbers: W020-0607 Black 28H 29" W020-0608 Black 32H 29" Buy WTB Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Chorus 12 Speed Ultra Torque ChainsetFeaturing high-quality carbon fibre crank arms, this 12 speed chainset offers excellent stiffness, durability and low weight performance for the demands of road cycling. Thanks to this model's carbon fibre build, it delivers a smooth and responsive pedal stroke without adding any unnecessary excess grams to your ride. Campagnolo has also equipped this model with a robust steel Ultra Torque axle and two aluminium chainrings for fantastic strength and reliability, wherever your next road journey takes you. Suitable for use with disc or rim brake groupsets, this chainset's chainrings also benefit from a special surface treatment for increased longevity.Carbon Fibre 12 Speed Road ChainsetThe updated Chorus chainset is a true concentrate of technology and versatility. Technically advanced thanks to unidirectional construction technology in carbon fibre, it is directly moulded without any surface coating and has an Ultra-Torque steel axle like the Record chainset. The revised 12x cranks are more versatile thanks to the bolt PCD of 123mm, giving it an extremely solid structure, also ensuring a wider variety of uses. The smaller bolt circle on the Chorus chainset makes it compatible with 36/52, 34/50 and the brand new 32/48 ratio chainrings (options available to select from the menu).Features: Crank Arm Material: Carbon Fibre Chainrings Material: Aluminium Axle Material: Steel Ultra Torque axle Use: Road Speed: 12 Speed Q Factor: 145.5mm Bolt: 4-bolt Brake Compatibility: For use with the disc or rim brake groupsets Weight: 718g (172.5mm, 34/50T Option)Technologies: The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Unidirectional carbon fibre cranks, steel axle and aluminium chainrings: Good stiffness and optimum power transmission. Symmetrical teeth on the internal chainring: Fluid, precise transmission, even with extreme cross-chaining.The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Optimised design for any chainring combination: Maximum performance, whatever the course style. Double Fixing: Assembly of the large chainring onto the crank is secured by a ring of 123mm bolts, while the inner chainring is attached to the outer by way of 96mm PCD bolts. Surface treatment of the chainrings for longer life. 12x Chorus Ultra-Torque chainset for use with the disc or rim brake groupset.Manufacturer's Part Numbers: CPB820A Black Carbon 170mm 32/48T CPB820B Black Carbon 170mm 34/50T CPB820C Black Carbon 170mm 36/52T CPB821A Black Carbon 172.5mm 32/48T CPB821B Black Carbon 172.5mm 34/50T CPB821C Black Carbon 172.5mm 36/52T CPB822A Black Carbon 175mm 32/48T CPB822B Black Carbon 175mm 34/50T CPB822C Black Carbon 175mm 36/52TBuy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Chorus 12 Speed Ultra Torque ChainsetFeaturing high-quality carbon fibre crank arms, this 12 speed chainset offers excellent stiffness, durability and low weight performance for the demands of road cycling. Thanks to this model's carbon fibre build, it delivers a smooth and responsive pedal stroke without adding any unnecessary excess grams to your ride. Campagnolo has also equipped this model with a robust steel Ultra Torque axle and two aluminium chainrings for fantastic strength and reliability, wherever your next road journey takes you. Suitable for use with disc or rim brake groupsets, this chainset's chainrings also benefit from a special surface treatment for increased longevity.Carbon Fibre 12 Speed Road ChainsetThe updated Chorus chainset is a true concentrate of technology and versatility. Technically advanced thanks to unidirectional construction technology in carbon fibre, it is directly moulded without any surface coating and has an Ultra-Torque steel axle like the Record chainset. The revised 12x cranks are more versatile thanks to the bolt PCD of 123mm, giving it an extremely solid structure, also ensuring a wider variety of uses. The smaller bolt circle on the Chorus chainset makes it compatible with 36/52, 34/50 and the brand new 32/48 ratio chainrings (options available to select from the menu).Features: Crank Arm Material: Carbon Fibre Chainrings Material: Aluminium Axle Material: Steel Ultra Torque axle Use: Road Speed: 12 Speed Q Factor: 145.5mm Bolt: 4-bolt Brake Compatibility: For use with the disc or rim brake groupsets Weight: 718g (172.5mm, 34/50T Option)Technologies: The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Unidirectional carbon fibre cranks, steel axle and aluminium chainrings: Good stiffness and optimum power transmission. Symmetrical teeth on the internal chainring: Fluid, precise transmission, even with extreme cross-chaining.The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Optimised design for any chainring combination: Maximum performance, whatever the course style. Double Fixing: Assembly of the large chainring onto the crank is secured by a ring of 123mm bolts, while the inner chainring is attached to the outer by way of 96mm PCD bolts. Surface treatment of the chainrings for longer life. 12x Chorus Ultra-Torque chainset for use with the disc or rim brake groupset.Manufacturer's Part Numbers: CPB820A Black Carbon 170mm 32/48T CPB820B Black Carbon 170mm 34/50T CPB820C Black Carbon 170mm 36/52T CPB821A Black Carbon 172.5mm 32/48T CPB821B Black Carbon 172.5mm 34/50T CPB821C Black Carbon 172.5mm 36/52T CPB822A Black Carbon 175mm 32/48T CPB822B Black Carbon 175mm 34/50T CPB822C Black Carbon 175mm 36/52TBuy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Chorus 12 Speed Ultra Torque ChainsetFeaturing high-quality carbon fibre crank arms, this 12 speed chainset offers excellent stiffness, durability and low weight performance for the demands of road cycling. Thanks to this model's carbon fibre build, it delivers a smooth and responsive pedal stroke without adding any unnecessary excess grams to your ride. Campagnolo has also equipped this model with a robust steel Ultra Torque axle and two aluminium chainrings for fantastic strength and reliability, wherever your next road journey takes you. Suitable for use with disc or rim brake groupsets, this chainset's chainrings also benefit from a special surface treatment for increased longevity.Carbon Fibre 12 Speed Road ChainsetThe updated Chorus chainset is a true concentrate of technology and versatility. Technically advanced thanks to unidirectional construction technology in carbon fibre, it is directly moulded without any surface coating and has an Ultra-Torque steel axle like the Record chainset. The revised 12x cranks are more versatile thanks to the bolt PCD of 123mm, giving it an extremely solid structure, also ensuring a wider variety of uses. The smaller bolt circle on the Chorus chainset makes it compatible with 36/52, 34/50 and the brand new 32/48 ratio chainrings (options available to select from the menu).Features: Crank Arm Material: Carbon Fibre Chainrings Material: Aluminium Axle Material: Steel Ultra Torque axle Use: Road Speed: 12 Speed Q Factor: 145.5mm Bolt: 4-bolt Brake Compatibility: For use with the disc or rim brake groupsets Weight: 718g (172.5mm, 34/50T Option)Technologies: The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Unidirectional carbon fibre cranks, steel axle and aluminium chainrings: Good stiffness and optimum power transmission. Symmetrical teeth on the internal chainring: Fluid, precise transmission, even with extreme cross-chaining.The Q Factor remains the same (145.5mm): The widths and biodynamics of the stroke are the same. Optimised design for any chainring combination: Maximum performance, whatever the course style. Double Fixing: Assembly of the large chainring onto the crank is secured by a ring of 123mm bolts, while the inner chainring is attached to the outer by way of 96mm PCD bolts. Surface treatment of the chainrings for longer life. 12x Chorus Ultra-Torque chainset for use with the disc or rim brake groupset.Manufacturer's Part Numbers: CPB820A Black Carbon 170mm 32/48T CPB820B Black Carbon 170mm 34/50T CPB820C Black Carbon 170mm 36/52T CPB821A Black Carbon 172.5mm 32/48T CPB821B Black Carbon 172.5mm 34/50T CPB821C Black Carbon 172.5mm 36/52T CPB822A Black Carbon 175mm 32/48T CPB822B Black Carbon 175mm 34/50T CPB822C Black Carbon 175mm 36/52TBuy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
CeramicSpeed OSPW System SRAM Rival AXS The OSPW System SRAM Rival AXS from CeramicSpeed offers a significant gear shifting performance upgrade for faster and smoother shifting. This version is compatible with SRAM Rival AXS rear derailleurs and is available with standard and coated aluminium pulleys.The Oversized Pulley Wheel System for SRAM Rival AXS features a 15-tooth upper and 19-tooth lower pulley wheel setting, for maximum efficiency. The hand built OSPW System has two spring tension settings, that allow customised setup based on riding conditions. As with all other CeramicSpeed products, this new OSPW System has been thoroughly tested. Besides thousands of test kilometres among both professional and amateur riders, CeramicSpeed's Founder and CEO has spent more than 5.000 km in the saddle, testing the product. With the guys from R&D following him closely and listening to his feedback from every single ride, we can proudly say that no details are left un-tested. Since its introduction in 2015, the CeramicSpeed Oversized Pulley Wheel System has been through 13 unique derailleur compatibility developments. No other pulley system has the depth of use and trust as the CeramicSpeed OSPW, which counts both Men's and Women's Triathlon World Champions, World Tour professional road teams, XCO professional MTB Teams, and elite athletes worldwide as its users. The aluminium CeramicSpeed pulleys come in both coated and standard versions (see multiple options in the selection menu at the top). Features: Compatibility: for SRAM Rival AXS In The Box: Complete OSPW System for SRAM Rival AXS CeramicSpeed Pulley Oil, 15 ml. dropper bottle Custom tool for removal of stock cage and securing of OSPW SystemBuy CeramicSpeed Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
CeramicSpeed OSPW System SRAM Rival AXS The OSPW System SRAM Rival AXS from CeramicSpeed offers a significant gear shifting performance upgrade for faster and smoother shifting. This version is compatible with SRAM Rival AXS rear derailleurs and is available with standard and coated aluminium pulleys.The Oversized Pulley Wheel System for SRAM Rival AXS features a 15-tooth upper and 19-tooth lower pulley wheel setting, for maximum efficiency. The hand built OSPW System has two spring tension settings, that allow customised setup based on riding conditions. As with all other CeramicSpeed products, this new OSPW System has been thoroughly tested. Besides thousands of test kilometres among both professional and amateur riders, CeramicSpeed's Founder and CEO has spent more than 5.000 km in the saddle, testing the product. With the guys from R&D following him closely and listening to his feedback from every single ride, we can proudly say that no details are left un-tested. Since its introduction in 2015, the CeramicSpeed Oversized Pulley Wheel System has been through 13 unique derailleur compatibility developments. No other pulley system has the depth of use and trust as the CeramicSpeed OSPW, which counts both Men's and Women's Triathlon World Champions, World Tour professional road teams, XCO professional MTB Teams, and elite athletes worldwide as its users. The aluminium CeramicSpeed pulleys come in both coated and standard versions (see multiple options in the selection menu at the top). Features: Compatibility: for SRAM Rival AXS In The Box: Complete OSPW System for SRAM Rival AXS CeramicSpeed Pulley Oil, 15 ml. dropper bottle Custom tool for removal of stock cage and securing of OSPW SystemBuy CeramicSpeed Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano Ultegra R8170 C36 Carbon CL Front 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 front wheel 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 front wheel 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 tyre 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.Features: Series: Ultegra R8100 Series Rim: Carbon Tubeless Ready Type: Clincher 36mm height full Carbon rim Internal Rim Width: 21mm Shared rim profile with R9200 Dura-Ace wheels Improved aerodynamics Axle: 12mm E-THRU Disc Rotor Mount: Centre Lock Single or Pair: Single front wheel Weight: 657gA 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.