Shimano Tiagra 4720 10 Speed Groupset - DiscThis brilliant groupset is perfect for road use as it sets the benchmark for entry-level components packages. Utilising technology from Shimano's higher-tier versions such as Dura-Ace, Ultegra and 105, this superb kit brings you the same top-quality features at an affordable price. Engineered for balanced performance and consistency, this disc brake specific bundle includes everything you need to take your adventures further than ever before.Shimano Tiagra 4700 CranksetThe iconic four-arm crank design has a standard pitch circle (bolt circle) diameter of 110mm both chain ring combinations are interchangeable because they fit on the same crankset.Features: Cassette compatibility: 10 speed Bottom Bracket: BB-RS500/BB-RS500-PB Chain Line: 150Shimano Tiagra 4720 Disc Brake:This high-quality road disc brake provides serious entry-level stopping performance and modulation. Giving you intuitive braking control, its lever uses ergonomics inspired by the 105 series to offer greater comfort and actuation in all conditions. Easy to set up, it's equipped with an adjustable reach, so you can customise it to suit your specific hand-size, type of riding and individual preferences.BR-4770 Caliper:Ready for action, this model's caliper offers greater rider control and simple maintenance. It features One Way Bleeding technology which delivers a streamlined oil route throughout the system to prevent air bubbles from being captured. This makes it incredibly easy to bleed for keeping installation and adjustment easy.Features: Use: Road Speed: 2x10 speed Oil: Mineral oil Reach Adjust: Tooled Type: Dual Control LeverShimano Tiagra 4700 Rear DerailleurThe rear derailleur has a revised cable pitch, which offers precise and long-lasting shifting performance.RD-4700 Features: Small Cage is supplied with 11-28 cassettes Medium cage is supplied with 11-32 cassettesShimano Tiagra 4700 Front Derailleur (2 x 10 speed)A light action front derailleur with a more ergonomic operation results in less chain drop. A braze on support bolt improves stability.Features: Cassette compatibility: 10 speed Top Gear Teeth: 53T Maximum Capacity: 16T Chainstay Angle: 61-66 Chain Line: 43.5Shimano HG Cassette Sprocket (10 speed)Quality 10-speed Shimano Tiagra cassette.Features: Sprocket Ratio (11-32T): 11-12-14-16-18-20-22-25-28-32 Sprocket Ratio (11-28T): 12-13-14-15-17-19-21-23-25-28 (12-28T) ReliableShimano Ultegra 6701 10 Speed ChainEnjoy the benefits of Shimano's no-compromise attitude; their use the best materials offers a great and reliable performance.Features: Ultegra 6701 10-speed Runs smoothly EfficientShimano Tiagra 4700 Bottom BracketStrong and smooth, the Shimano Tiagra 4700 HG500 Bottom Bracket is for use with two-piece cap-free design road chainsets Thread: English Threaded Minimal bearing interface gives superbly smooth rolling Easy installation Weight: 72g (approx)Please note that this groupset does not come supplied with outer cables.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 Tiagra 4720 10 Speed Groupset - DiscThis brilliant groupset is perfect for road use as it sets the benchmark for entry-level components packages. Utilising technology from Shimano's higher-tier versions such as Dura-Ace, Ultegra and 105, this superb kit brings you the same top-quality features at an affordable price. Engineered for balanced performance and consistency, this disc brake specific bundle includes everything you need to take your adventures further than ever before.Shimano Tiagra 4700 CranksetThe iconic four-arm crank design has a standard pitch circle (bolt circle) diameter of 110mm both chain ring combinations are interchangeable because they fit on the same crankset.Features: Cassette compatibility: 10 speed Bottom Bracket: BB-RS500/BB-RS500-PB Chain Line: 150Shimano Tiagra 4720 Disc Brake:This high-quality road disc brake provides serious entry-level stopping performance and modulation. Giving you intuitive braking control, its lever uses ergonomics inspired by the 105 series to offer greater comfort and actuation in all conditions. Easy to set up, it's equipped with an adjustable reach, so you can customise it to suit your specific hand-size, type of riding and individual preferences.BR-4770 Caliper:Ready for action, this model's caliper offers greater rider control and simple maintenance. It features One Way Bleeding technology which delivers a streamlined oil route throughout the system to prevent air bubbles from being captured. This makes it incredibly easy to bleed for keeping installation and adjustment easy.Features: Use: Road Speed: 2x10 speed Oil: Mineral oil Reach Adjust: Tooled Type: Dual Control LeverShimano Tiagra 4700 Rear DerailleurThe rear derailleur has a revised cable pitch, which offers precise and long-lasting shifting performance.RD-4700 Features: Small Cage is supplied with 11-28 cassettes Medium cage is supplied with 11-32 cassettesShimano Tiagra 4700 Front Derailleur (2 x 10 speed)A light action front derailleur with a more ergonomic operation results in less chain drop. A braze on support bolt improves stability.Features: Cassette compatibility: 10 speed Top Gear Teeth: 53T Maximum Capacity: 16T Chainstay Angle: 61-66 Chain Line: 43.5Shimano HG Cassette Sprocket (10 speed)Quality 10-speed Shimano Tiagra cassette.Features: Sprocket Ratio (11-32T): 11-12-14-16-18-20-22-25-28-32 Sprocket Ratio (11-28T): 12-13-14-15-17-19-21-23-25-28 (12-28T) ReliableShimano Ultegra 6701 10 Speed ChainEnjoy the benefits of Shimano's no-compromise attitude; their use the best materials offers a great and reliable performance.Features: Ultegra 6701 10-speed Runs smoothly EfficientShimano Tiagra 4700 Bottom BracketStrong and smooth, the Shimano Tiagra 4700 HG500 Bottom Bracket is for use with two-piece cap-free design road chainsets Thread: English Threaded Minimal bearing interface gives superbly smooth rolling Easy installation Weight: 72g (approx)Please note that this groupset does not come supplied with outer cables.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.
ZIPP 303 Firecrest 650b Tubeless Disc-Brake Front WheelThe definition of road cycling now includes gravel and dirt in addition to pavement. Simultaneously, bikes are evolving to meet the requirements of smaller riders. Zipp's 303 Firecrest 650b Tubeless Disc-Brake wheel was created to fulfil these needs. The smaller rim provides room within frames and forks for big-volume tyres, delivering improved comfort, compliance and cornering performance on the most challenging terrain. A 45mm rim profile reduces wind resistance, rolling resistance and weight but benefits from a wider internal width for enhanced performance and ride quality on almost every surface imaginable. ABLC (AERODYNAMIC BOUNDARY LAYER CONTROL)ABLC refers to the patented and instantly recognisable dimpled pattern found on all of Zipp's carbon rims. ABLC smooths airflow across the rim surface, and this latest third-gen iteration features up to four times more dimples than before.AEROBALANCEZipp wheels are race-ready before they are camera-ready. Using a combination of testing methods, Zipp refines aero performance to new levels of excellence. Aerobalance ensures the perfect balance of aero efficiency and crosswind stability. Product Details Rim Dimensions45mm Profile. 21mm InternalTubeless Compatible YesWeight613gHubZR1 DB. J-Bend. OLD 100mm. Centre Lock. 12mm Thru-Axle. BlackSpokesSapim CX-Sprint. J-Bend. Spoke Count24H Rim TechnologyCarbonMax PSI125PSI Rider Weight Limit130kgWarrantyZipp Limited Lifetime
Using our renowned Racelight geometry, the kinesis 4S offers a true race geometry but with the ability to fit full length mudguards and a pannier rack. The Kinesis 4S is for the rider looking for a Winter bike that will handle like their Summer race bike, or a Winter bike that they can race through the Summer. A true four seasons bike. Features: The Kinesis 4S is the natural evolution of our very first Winter training frames, however the Kinesis 4S should not be consigned to Winter riding only. We have put everything we have learned during the last 17 years of geometry, and alloy frame design and manufacture into the Kinesis 4S . Whilst other manufacturers focus has been on carbon, we believe that by putting the same development into alloy tubing, we have created a frame that rivals carbon in many ways, and hands down beats it on price. Damian Mason of Kinesis UK said ‘Kinesis are the only frame manufacturer to use Super Plastic Forming (SPF) on their alloy frames. Most manufacturers use Hydroformed tubes, but with SPF we can create lighter tubes and more intricate shapes that will build into a lighter and stiffer frameset.’ We have combined our SPF Kinesium aluminium frame with our renowned Tracer Disc Thru Axle full carbon monocoque fork. The Tracer Disc’s square crown provides the perfect space for mounting our Kinesis Fend Off full length mudguards. The Tracer Disc has great tyre clearance, internal routing, mudguard compatibility, discreet Shimano flat mount fitting, all in a lightweight package. As with our premium titanium Kinesis GTD frameset, we have partnered with GW engineering and we are supplying the Kinesis 4S with their patented ‘Switch Lever’ hollow Thru Axles with a removeable lever. The Kinesis 4S uses adaptable cable ports which allow you to build your frame with exactly the right cable routing for whether you are running Di2 or mechanical gearing with either a 1x or 2x set up. The frame has twin bottle mounts on all sizes along with mudguard and rack mounts. Specifications: Super Plastic Formed Kinesium Aluminium Tracer Disc Thru Axle carbon monocoque fork 142x12mm Thru Axle rear spacing 100x12mm Thru Axle front spacing GW ‘Switch Lever’ axles front and rear Clearance for up to 30c tyres Clearance for up to 28c tyres with guards Di2 / 1x / 2x mechanical compatible Two bottle cage mounts Mudguard and rack mounts 68mm threaded BB 27.2mm seat post required Kinesis designed tapered headset with ACB bearings Colours: Shocking Pink or Royal Blue Sizes: 48 / 51 / 54 / 55.5 / 57 / 60 / 63 Warranty: 3 years Frame supplied with fork, headset, seat clamp, front & rear through axle, frame ports and cable guides. Weight: 1550g (55.5cm frame)
This all-new carbon wheelset is a great choice for road riders aiming to be fast and efficient in all types of riding and racing situations. Not only does the 45mm airfoil rim slice through the wind with minimal drag but it’s also amongst the lightest in its category. This season the external carbon layer features our new UD² construction for a distinctive look and an even lighter rim laminate saving another 15g per rims.A new rim laminate coupled with our exclusive Fore Carbon technology leaves the upper rim bridge intact and reinforces the rim only where needed saving 40g per rim. The spokes attach to the rim without any need to drill the upper rim bed so no rim tape is required. That means more weight savings (30g) and less hassle when it comes to set up or repair tubeless tyres. The new shape of the rim bed makes it easier than ever to mount and remove tires. UST Tubeless setup means no tube so no friction and more air volume means a smoother ride. The result is a faster ride with super low rolling resistance. At last our patented elliptical spokes save another 5 watts.Our new Infinity hub platform optimizes the spoke lacing for efficient power transfer through highly controlled spoke tension. The Instant Drive 360 freewheel with automatic bearing preload adjustment (QRM Auto) provides fast engagement high stiffness and added durability. Its available for Shimano and SRAM XD-Road driver bodies and can convert to Campagnolo with an optional driver body. Its compatible with a 12x100 axle up front and 12x142 rear and converts to Quick Release with supplied adapters. For Center Lock disc rotors only.These wheels are designed engineered and patented by Mavic in Annecy France and are 100% handmade in our European carbon factory. Key benefits Accelerate and climb faster hold higher speed New UD² rim laminate and Fore Carbon spoke attachment save 55g and eliminate rim tape (another 30g saved per wheel) 45mm deep 26mm wide NACA rim profile optimized for disc brakes Patented lightweight aero spokes Stiffer wheel for improved power transfer Fore Carbon technology keeps the rim upper bridge solid and makes the rim stiffer New Infinity hub plaform: stiff axle durable bearings and new hub design optimize lacing and spokes tension ID360 freewheel technology for instant power transfer Improved UST Road delivers more speed comfort and control in an easy to use tubeless system No tubes means less friction better efficiency and grip and a reduced risk of punctures New rim bed shape makes it easier to mount and change tires Fore Carbon drilling technology doesnt require the use of rim tape Specifications DELIVERED WITH User guide UST valve and accessories Fore adjustment wrench Rims Tire: UST Tubeless and tubetype Height: 45 mm Disc brake specific profile Internal width: 19 mm UST tubeless technology ETRTO size: 622x19TC Material: 100% carbon fiber Fore Carbon tapeless tubeless technology Material: 100% carbon fiber with UD external layer Spokes Count: 24 front and rear Nipples: Fore integrated aluminum Material: steel Shape: straight pull elliptical aero double butted (patented) Lacing: front and rear crossed 2 contactless Delivered with User guide UST valve and accessories Fore adjustment wrench Hubs Axle material: aluminum Front and rear bodies: aluminum Instant Drive 360 freewheel technology Rear: Quick Release 12x142 and 12x135 compatible QRM Auto bearing preload technology Front: Quick release and 12x100 through axle compatible Infinity hubs Intended use Recommended tire sizes: 25 to 32 mm ASTM CATEGORY 2 : road and offroad with jumps less than 15cm For a longer longevity of the wheel Mavic recommends that the total weight supported by the wheels doesnt exceed 120kg bike included Max Pressure: see indication on wheel and tire If they differ use the lowest of the 2 Minimum and maximum allowed tyre width: see indication on wheel Maximum tyre pressure: 675bar/97PSI with a 23mm tyre - 38bar/55PSI with a 62mm tyre Compatibility Freewheel: Shimano/Sram convertible to Campagnolo ED11 N3W and XD-R with optional driver bodies Rear axle: 12mm thru axle convertible to Quick Release with optional adapters and axle replacement Front axle: 12x100 thru axle easily convertible to quick release with optional adapters Not compatible with 15mm through axles Versions Disc standard: Center Lock® only Freewheel: Shimano/Sram or XD-Road Compatible Adapters and freewheel bodies 12 to 9mm front adapter for quick release (V2680301) 12x135 rear axle adapters (V2510901) with axle V2373401 ID360 Shimano / Sram Light freewheel body (V3850101) ID360 Campagnolo freewheel body (V3440101) ID360 XD-R freewheel body (V2580101) ID360 Shimano / Sram freewheel body (V3430101) 12 to 9mm rear adapter for quick release (V2510801 (with axle V2373401) ID360 N3W freewheel body (V4270101) Information on specified weight The weight of the wheels is announced at +/-5% in XD/XD-R and Center Lock version without quick release nor valve nor rim tape
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,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
Zipp’s 404 Firecrest Tubeless Disc brake is a pro-proven Speed Weapon for any situation. 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 gran fondos and riding over varied terrain. 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. At the center of the 404 Firecrest Tubeless Disc-brake is a versatile and durable new 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. FEATURES Versatile aero wheelset for the modern road 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 Lifetime warranty SPECIFICATIONS SIZE (WHEELS) 700c RIM CONSTRUCTION Carbon – Hookless TIRE COMPATIBILITY Tubeless tires only BRAKE COMPATIBILITY Disc (Center Lock) DRIVER BODY TYPE n/a SRAM XDR SRAM/Shimano Road RIM - INSIDE WIDTH 23mm RIM FINISH UD fiber adhesive decals RIM PROFILE Symmetrical SPOKE LENGTH DS 248mm 254mm SPOKE LENGTH NDS 252mm WEIGHT (G) 1450 WEIGHT BASED ON Estimated lightest weight for wheelset configuration: 12mm through axles and XDR body. No tape or valve included in weight. Not yet final.
Specification:Orientation (wheels): Rear,Size (wheels): 700c,Rim construction: Carbon,Tire compatibility: Clincher Tubeless Ready,Rim depth: 40mm,Surface texture: ABLC SawTooth,Brake compatibility: Disc (Center Lock),Rim - inside width: 25mm,Rim profile: Symmetrical,Rim finish: UD fiber, adhesive decals,Color (Decal): Standard,Nipple material: Aluminum,Nipple anti-rotation: Sapim Secure-Loc,Spoke type: CX-Sprint,Spoke count: 24,Spoke pattern: 2 Cross,Hub: ZR1 Disc Brake,Color (hub): Black,Axle type (Wheels): TA 12x142,Axle material: Aluminum front & rear,Bearings: Cartridge - Stainless Steel,Driver Mechanism: 6 Pawls Leaf Spring,Driver body material: Aluminum,Max tire pressure: 73psi,Max recommended rider weight: 250lbs,Part Weight (g): 739.
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
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.
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.
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.