Fulcrum Racing Zero Road Disc WheelsetComing equipped with Fulcrum's prestigious 2-Way fit technology, this road bike wheelset gives you the flexibility to run a standard clincher tyre or a tubeless tyre. This means you'll benefit from more freedom to choose which tyre set-up best suits your needs or simply run a clincher set-up for training and a tubeless set-up for racing. Coming kitted out with disc brake compatibility using the AFS axle system, this model ensures powerful and consistent braking as well as greater structural rigidity.Aero Straight Pull Spokes and USB BearingsReady for racing, this wheelset features high-quality aero straight-pull spokes that use a two-to-one ratio to maximise your performance. With 21 spokes on each wheel providing a high level of torsional stiffness and stability, you'll also benefit from optimal power transfer on every mile. Another highlight is its Ceramic Ultra Smooth Bearings (USB) that are housed in a carbon hub on the front and an aluminium hub on the rear for incredibly low friction and 50% more smoothness than standard bearings.Creating a disc brake version of the legendary Fulcrum Racing Zero was never going to be easy. It had to be something special; it had to retain the responsiveness, balance and comfort that the Zero range is famous for. Introducing the Zero DB. The ride experience is the same - equally exhilarating and now with the added advantage of superior braking in all conditions. Not to mention that disc brakes drastically extend rim life. Fulcrum has succeeded in their goal: the gold standard aluminium disc brake wheel is now available.Features: Rim Material: 6082 T6 Pre-Aged Aluminium with triple milling Use: Road, Gravel Axle Compatibility: Front: 12-100mm; Rear: 12-142mm Rim Profile Height: Medium Rim Height: Front and Rear: 30mm Rim Width: 23.8mm Inner Rim Width (Channel): 19mm Tyre Compatibility: 2-Way fit (for clincher and tubeless) Tyre Width: From 23mm to 50mm Brake Type: Disc brake; Braking Surface: AFS Spoke Material: Aluminium Spoke Count: 21 Spoke Ratio: Front: Two-to-one (14 left - 7 right); Rear: Two-to-one (7 left - 14 right) Spoke Profile: Aero, straight pull Nipples Material: Aluminium Front Hub: Carbon, Aluminium oversize flange Rear Hub: Aluminium, Aluminium oversize flange Freehub Compatibility: Shimano Bearings: USB ceramic bearings. Adjustable Cup & Cones bearing system Others: Plasma treated HG freewheel. Aluminium Axle. Reflective artwork Wheel Size: 700c Tubeless Ready: Yes ASTM Category: 2 Single or Pair: Pair Weight Limit: 109kg (cyclist) Weight: 1590gTechnologies: 2-Way Fit: 2-Way Fit profile for tubeless and clincher. Fulcrum have developed 2-Way Fit technology to ensure the perfect compatibility of our tubeless rims with normal clincher types and tubes. 2-Way Fit road bike wheels are perfectly multipurpose for tackling every situation. Thanks to a special impression in the valve area, the tubes are fitted with maximum precision while keeping the tube perfectly stable inside the tyre. Housing the valve for tubeless tyres is also risk-free, with the unquestionable advantage that there are never any air infiltrations caused by non-ideal positioning when fitting. Rim Dynamic Balance (RDB: The concept is simple and elegant: balance the weight of the gasket, with an item of similar weight placed on the exact opposite side. Ceramic Ultra Smooth Bearings (USB): Fulcrum has a long-standing reputation for the extremely high performance of its hubs in terms of smoothness and reliability. The hubs with USB ceramic bearings (Ultra Smooth Bearings) further enhance the triathlon and road bike wheels' smoothness and reduce weight and the need for maintenance. Comparative tests have shown that USB bearings are 50% smoother than standard bearings. Now improving your performance during the race or simply going for a ride with your friends will be easier. AFS Axle System: The Axial Fixing System is the solution developed by Fulcrum to fix the disc brake to the hub. The constraint granted by the butt area of the release mechanism, greater than in familiar standard ones, makes it possible to obtain greater structural rigidity and therefore more precise and powerful braking. 2:1 Two-to-One Spoke Rato - Disc Brake: The advantages are truly striking. By pressing the brake, the front wheel maintains the right trajectory and does not deviate, while the rear wheel, precisely due to this spoking system, reaches a high level of torsional stiffness that enables the optimal transfer of power to the wheel. The 2:1 Two-to-One system also allows to reduce the unit load sustained by each spoke, and then to minimise the mechanical stress which will give a long life to the wheel. High Strength Aluminium: Special aluminium - the best aluminium wheels require carefully chosen materials. For "High strength Aluminum", Fulcrum R&D uses only the best aluminium alloy 6082, with artificial ageing T6 temper that stabilises the alloy and gives it maximum life and reliability. Aluminium 6082 has the highest strength of the 6000 series and has replaced 6061 in many applications. It is generally used for high-stress applications.Manufacturer's Part Number: FULC0146626 Black 700c Shimano FULC0146627 Black 700c SRAM XD SRAM XDRBuy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Built to send you on climbs, sprints and descents with unrivalled speed and stability, the carbon fibre Fulcrum Wind 40 road bike wheels give a rigid and responsive performance as you hit high speeds. Giving optimum crosswind stability from the 40mm rim depth and a superb surface contact area from their 27mm width, an assured and balanced feel is achieved on every ride. Strong and Efficient Carbon-Fibre Road Wheels Supported by a set of robust and reliable aluminium hubs, the Fulcrum Wind 40 Disc Wheelset benefits from a double butted stainless-steel spoke setup. The hubs also come with sealed cartridge bearings for minimised friction on the most challenging runs. With Two-Way Fit tubeless-ready compatibility improving cornering grip and puncture protection and disc brake optimisation for superior stopping power, this Wind 40 wheelset is a deep-rimmed and dynamic choice for hitting the road.
Fulcrum Racing Zero C17 2-Way Fit Road WheelsetFeaturing a tough 6082 T6 aluminium rim build that's pre-aged, triple milled and square milled, this race-ready wheelset delivers maximum strength without adding any unnecessary weight to your road bike. Fulcrum has also equipped this model with high-quality aluminium aero, straight pull spokes with aluminium nipples, allowing for increased aerodynamics and smooth-rolling performance as it cuts through the wind. Another highlight is its rim-brake compatibility, which offers consistent braking operation with further weight savings and aerodynamics. Coming complete with many of Fulcrum's finest technologies including 2-Way Fit and MoMag, this is a great choice of upgrade for fast, smooth and reliable performance on every mile.2-Way Fit and MoMag TechnologyThe gold standard among high-level aluminium road bike wheels with absolute ability to transmit your energy on the asphalt, its extreme riding precision. Race after race, Zero wheels have become synonymous with excellence, quality, performance, reliability… and now tubeless too!The updated feature of the Racing Zero 2WF, as the name suggests, is the introduction of 2 Way Fit technology, so that they can be used with or without tubeless tyres. MoMag technology utilizes magnets in the wheel construction to guide the spoke nipples into place. This allows for an undrilled rim bed that is completely airtight without the need for tubeless tape.Ceramic USB BearingsThe aluminium rims have an inner rim width of 17mm (perfectly suited to 25mm tyres), a differentiated front and rear depth profile, 27mm on the front and 30mm on the rear. Ceramic Ultra Smooth Bearings (USB) in a carbon hub on the front and an aluminium hub on the rear offer an incredibly low friction coefficient.Updated Dark Reflective DecalsThe graphics have been updated too, with dark reflective decals for maximum safety when riding in low light conditions whilst maintaining a stealthy look in daylight hours. The Fulcrum Racing Zero C17 2-Way Fit Road Wheelset excels uphill and in mixed conditions, thanks to the renowned reactivity of the Racing Zero family.Features: Rim Material: Aluminium (6082, T6 Pre-Aged), triple milling, square milling Use: Road Axle Compatibility: Front: QR; Rear: QR Rim Profile Height: Low Rim Height: Front: 27mm; Rear: 30mm Rim Width: 22.5mm Tubeless Compatible: Yes Inner Rim Width (Channel): ETRTO 17C Braking System: Caliper rim brake Braking Surface: Aluminium braking surface, turned Tyre Type: 2-Way Fit (for clincher and tubeless) Tyre Size: 700c Spoke Count: Front: 16 (8 left - 8 right); Rear: 21, Two-to-one (7 left - 14 right) Spokes Material: Aluminium Spokes Profile: Aero, straight pull Nipples: Aluminium Front Hub: Carbon, Aluminium oversize flange Rear Hub: Aluminium, Aluminium oversize flange Bearings: USB ceramic bearings. Adjustable Cup & Cones bearing system Freehub Type: Multiple options available to select from the drop-down menu Others: Plasma-treated HG freewheel. Aluminium Axle Weight Limit: 120kg (comprising cyclist, bike, equipment and luggage) Single or Pair: Pair Weight: 1490gManufacturer's Part Numbers: FULCWF4080RP7A330 Black 700c Campagnolo FULCWF4080RP1A330 Black 700c ShimanoBuy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fulcrum Racing Zero C17 Competizione WheelsetThis wheelset from Fulcrum has been engineered to provide you with the next level in range and performance. Designed to take on challenging bends and to offer a seamlessly smooth run thanks to the CULT™ ceramic bearings, this is the ideal wheelset to tackle your next challenge.A special triple milling process makes it possible to reduce the peripheral weight of the rims and to increase the responsiveness of the wheels. They have a differentiated rim height: 27mm at the front to have good handling and 30mm at the rear to transfer all of the power to the wheel.Smoothness is ensured by the famous CULT™ ceramic bearings. The cup and cone technology maintains the most efficient angle of contact between the bearings and bearing seat, increasing the smoothness and durability. The carbon hubs and oversized aluminium rear flange provide an innovative mix that provides excellent torsional rigidity for more efficient power transmission and consequently greater responsiveness.A careful choice of aluminium spokes is used to ensure optimal rigidity and special attention has been paid to aerodynamics. Aluminium nipples have been used and thanks to the lightweight, they reduce the peripheral mass further increasing the responsiveness of the wheels.Features:Wheel Material: AluminiumRim Material: Aluminium (6082, T6 pre-aging), triple milling, square millingTyre Type: 2Way-Fit (clincher & tubeless)Suggested Tyre Width: 25mm to 32mmProfile Height: LowRim Height: Front: 27mm; Rear: 30mmRim Width: Outer: 22.5mm; Inner: 17mmBraking System: CaliperBraking Surface: aluminium braking surface, turnedSpoke Count: Front: 16; Rear: 21 (7 left & 14 right), Two-to-One™Spoke Material: AluminiumSpoke Type: Aero, straight pullNipples: AluminiumFront Hub: Carbon, aluminium flanges, QRRear Hub: Carbon, aluminium oversized flange, QRBearings: CULT ceramic bearings, adjustable cup & cone bearing systemOther: Plasma treated HG freewheel, aluminium axlesWeight: 1510gBuy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fulcrum Wind 40 DB Road WheelsetInfluenced by Fulcrum's popular 55 model, the 40 DB Road Wheelset is ready to help you outperform on the tarmac. Featuring stiff and sturdy carbon-rimmed rollers that help you keep steady when tackling top speeds, this set also benefits from a 27mm external rim width for exceptional control that'll help you excel on race day. Strong and Stable, Carbon-Rimmed Road WheelsSupported by a pair of strong and sturdy aluminium hubs, both wheels also benefit from a selection of stainless-steel spokes, ensuring every spin is reliable, smooth and true. The hubs also feature sealed cartridge bearings to reduce friction on the most demanding runs. Coming 2-Way Fit tubeless-ready for enhanced cornering grip and puncture protection, and disc brake-optimised for unrivalled stopping power, this Wind 40 wheelset is a top choice for the modern road rider.Features:Rim Material: Full Carbon, UD unidirectional - carbon fibre finishingInner Rim Width: 19mmExternal Rim Width: 27mmRim Profile: 40mmHub Material: AluminiumNipple Material: AluminiumSpoke Material: Stainless Steel Double ButtedBearings: Sealed cartridgeUse: Road, TriathlonSpokes: 24x stainless steel rounded, straight-pull spokes per wheelBrake Type: Disc brakeTubeless-Ready: YesCompatibility: Front Axle: HH12-100 Rear Axle: HH12-142 Tyre Compatibility: 2-Way Fit (for clincher & tubeless)Weight: 1620gWeight Limit: 109kgBuy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
These Fulcrum Racing Zero Competizione road bike wheels feature a durable aluminium rim construction, which allows them to handle all the challenges that are associated with road racing. Fulcrum has also gone the extra mile by equipping it with aluminium spokes and nipples, which give it an extra layer of robustness as you race against your competitors. Kitted out with a carbon fibre front hub, this wheelset allows you to benefit from its incredible strength-to-weight ratio on every mile. This attention to detail makes it an ideal choice of upgrade for performance-driven riders who want to save every gram on their road bike.
Fulcrum Racing Zero Competizione DB WheelsetLooking for a fast, race-ready and disc brake compatible aluminium wheelset? If so, the Racing Zero Competizione ticks all these boxes and more. The ideal addition to any modern road bike, these smooth-running wheels have strong 30mm deep aluminium rims and spin on ceramic bearings for a long-lasting, friction-free ride. The rims are also compatible with standard and tubeless clincher tyres, should you want to run lower tyre pressures for extra grip and lower rolling resistance on poor road surfaces. To top it off, Fulcum has added a carbon fibre and aluminium blended front hub to reduce the overall weight.Features: Rim Material: Aluminium (6082, T6 Pre-Aged), triple milling, Square Milling Axle Size: Front: 12x100mm thru-axle; Rear: 12x142mm thru-axle Inner Rim Width: 19mm Outer Rim Width: 23.8mm Rim Depth: 30mm Rim Profile Height: Low Tyre Compatibility: 2-Way fit Ready (for clincher and tubeless tyres) Tubeless Compatible: Yes Front Hub: Material: Carbon Fibre with, Aluminium oversize flange; Axle Compatibility: 12x100mm thru-axle; Bearings: Cult Ceramic bearings Rear Hub: Aluminium with oversized flange; Axle Compatibility: 12x142mm thru-axle; Bearings: Cult Ceramic bearings Axle Material: Aluminium Freewheel: Plasma treated HyperGlide (HG) freewheel (Shimano option) Cassette Compatibility: Shimano Option: 9,10 and 11-Speed; SRAM Option: SRAM XD 11/12-Speed Brake Compatibility: Disc brake only, CenterLock mount, Axial Fixing System (AFS) Spoke Material: Aluminium Spoke Type: Aero, straight pull Front Wheel Spokes: 21, Two-to-one (14 left - 7 right) Rear Wheel Spokes: 21, Two-to-one (7 left - 14 right) Nipple Material: Aluminium Use: Road ETRTO: 19-622 Tyre Width: From 25mm to 50mm Weight Limit: 120 kg (Cyclist) Included: Wheelset, brake rotor lock rings, rim tape, tubeless valves Weight: 1570gBuy Fulcrum Racing Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
The Fulcrum Racing 3 is the perfect all-round wheel. Brilliant for riders who do long rides, training spins or local sportives. Fulcrum have designed the 3 to be the ideal mid-range wheel solution that still has has heaps of character.Although the design has remained similar to previous versions, the new R3 does have some notable differences. The first and most noticeable new feature is the aluminium rim designed to work with caliper brakes. With a 17mm groove and featuring new shapes that benefit wheel performance without adding any superfluous weight.This is a sturdy and comfortable wheel ideal for long distance cycling thanks to the enhanced shock absorption provided by its aluminium spokes. The R3 also has an extremely smooth rolling action thanks to Fulcrums bottom bracket cup technology. Extremely reliable and ultra-stylish there is no need to compromise with this wheel.Tyre Type: Clincher ,Tyre Size: 700c ,Discipline: Road ,ASTM Category: 1 ,Weight: 560g ,Rim Material: Aluminum ,Rim Material Details: Aluminum (6082, T6 Pre-Aged), R2-Milling ,Profile Height: Low ,Rim Height: Front: 27mm - Rear: 30mm ,Rim Width: 22,5mm ,Inner Rim Width (Channel): ETRTO 17C ,Tyre Width: From 25mm to 50mm ,Braking System: Caliper ,Braking Surface/Brake Options: Aluminum braking surface, turned ,Front Axle Compatibility: QR ,Rear Axle Compatibility: QR ,Front Wheel Spokes: 16 (8 left - 8 right) ,Rear Wheel Spokes: 21, Two-to-one (7 left - 14 right) ,Spokes: Material: Stainless steel, double butted ,Spokes: Profile: Aero, straight pull ,Nipples: Brass ,Front Hub: Aluminum, Aluminum flanges ,Rear Hub: Aluminum, Aluminum oversize flange ,Bearings: Adjustable Cup & Cones bearing system ,Others: Aluminum Axle ,Weight Limit: 109 kg (Cyclist) ,FWB Options: HG11, Campy.
Fulcrum Red Zone 3 WheelsetEngineered for dependable performance wherever your mountain bike (MTB) takes you, this versatile wheelset is perfect for all-day epics on the trails and exploring new mountain routes. Fulcrum has kitted out this model with durable aluminium rims that have been put through the brand's square milling and CNC-machining process to deliver maximum strength without adding any unnecessary weight. This results in a more capable wheelset that can handle the intensity that's associated with charging across demanding terrain conditions at speed, across rock gardens, tree roots and debris.Aluminium MTB WheelsetFulcrum's second MTB wheel is the result of the experience matured in the development of the Red Zone Carbon. It's designed for a wider range of riders looking for a reliable and resistant product for off-road fun and performance.Amongst the technical specifications derived directly from its older sibling we find the hubs and the spoke count of 24 on the front and 28 on the rear. The CNC machined aluminium rim has a profile of 19mm and an inner rim width of 25mm. Aesthetically the wheel is completed with an advanced finish that marries a double polished-matt surface with laser-etched graphics. The Fulcrum logo can be found inside a red box, which can also be replaced with a reflective adhesive, black on black, included with the wheels.The Red Zone 3 is an all-purpose wheel, which is extremely versatile and suited to multiple uses: training wheels, sturdy race wheels or the perfect base for adventure bikes (boost gravel).Boost Axle SpacingBuilt for modern MTB trail riding, the Fulcrum Red Zone 3 Wheelset is equipped with Boost axle spacing for stiffer and stronger rolling performance across harsh and unpredictable terrain conditions. Its 15x110mm front spacing and 12x148mm rear spacing gives it extra stability as you carve your way from trail to trail.Features: Rim Material: Aluminium with Square Milling, CNC-machined Use: Mountain Bike (MTB) Rim Width: Inner: 25mm; Outer: 29mm Rim Height: 19mm Asymmetric Profile Height: Low Axle Size: Front: 15x110mm (Boost); Rear: 12x148mm (Boost) Brake Type: Disc Brake Tubeless Ready: Yes 2-Way Fit Ready: Yes ASTM Category: 3 Braking Surface: AFS Front Wheel Spokes: 24 Rear Wheel Spokes: 28 Spokes Material: Stainless Steel - Double Butted Spokes Profile: Rounded, straight pull Nipples: Aluminium Front Hub: Aluminium Flanges Rear Hub: Aluminium Flanges Freehub: Multiple options available to select Bearings: Adjustable Cup and Cones bearing Others: Optional Reflective "F" sticker Weight Limit (System): 125kg ASTM Category: 3 Single or Pair: Pair Weight: 1610g Technologies: Wide Rim Tech: Fulcrum's Research and Development department, following requests from the competition circuit, has worked to create rims that are wider than before, about 4 mm or more than previously. This technical choice provides an ideal basis for 25/28mm tyres, the sizes currently popular. This ensures stability, excellent handling and superior comfort. Cup and Cone: The cup-and-cone bearing differs from the classic cartridge bearing because it works in perfect alignment with the forces involved, weight and thrust from the frame, as the bearings run in a race positioned directly opposing these forces. Square Milling: For the new Racing Zero's aluminium rim, Fulcrum decided to keep the triple-milled structure throughout the profile to minimise aluminium thicknesses. Next, Fulcrum's technicians added 3D milling at the base of the spokes. This means less material but the same reliability since, in this particular design, the forces are well distributed over the rim. Triple and “Square” milling enable maximum weight reduction on the rim periphery, producing an extremely responsive wheel. Asymmetric Rim: The asymmetry is designed to improve rim tension, balancing the forces from brakes and sprocket cassette. Manufacturer's Part Numbers: FULCWF4060AP1A220 Black 29" Shimano FULCWF4060AP5A220 Black 29" SRAM XD SRAM XD FULCWF4060AP3A220 Black 29" Micro Spline Buy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
A lightweight clincher wheelset with milled alloy rims and a MoMag inner profile to eliminate rim tape and reduce rotational mass, the Fulcrum Racing 3 C17 road wheels feature an oversized drive side flange and a 2:1 spoke ratio for quick handling out on the tarmac. Rim Dynamic Balance Simple and Elegant, the weight of the rim gasket on the Fulcrum Racing 3 C17 Clincher Wheelset is balanced on the opposite side with an item of similar weight. 2:1 Two-To-One Every push on the pedals from the rider will force most of that energy on the drive side of the rear wheel. To combat this loss of rim tension and power transfer, Fulcrum has solved this cycling problem with their 2:1 spoke ratio pattern by doubling the spoke count in crucial zones on the wheel. Anti-Rotation System This system locks the spoke in place once the correct tension is achieved. Engineers at Fulcrum have designed this system to ensure the spokes never lose their initial tension and remain in the position that has been proven to provide the perfect aerodynamic properties. Additional Features: Milled rims for reduced peripheral weight and increased reactivity Differentiated front and rear rim height for agility and power transfer Oversized hub body in aluminium, painted white, gives strong lateral stiffness while reducing weight Overside flange 9% more torsional stiffness
Fulcrum Racing 3 C17 Clincher WheelsetThe Fulcrum Racing 3 C17 Clincher Wheelset ticks all the boxes. Designed for Training, Racing and long-distance Endurance riding, it is perfect for the training cyclist who won't compromise on quality and performance. It's also ideal for long-distance riding and benefits from a reliable and durable construction. Stiff, Flex-Free & LightThis wheelset features a high-end aluminium rim construction, which provides stiffness, and flex-free performance while being lightweight. The braking profile has been precision machined and offers exceptional braking performance and consistency. This will provide a superbly comfortable and stable ride no matter how long your journey, or how rigorous your training or race session may be.Features: Material: Rim, Hubs: Aluminium; Spokes: Stainless Steel Rim Height: Front: 25mm; Rear: 30mm Internal Rim Width: 17mm External Rim Width: 23mm Braking System: Rim Brake Braking Surface: Aluminium Turned Axle Compatibility: Quick Release Spoke Count: Front: 16; Rear: 21 Spoke Type: Aero Straight-Pull Bearings: Adjustable, Cup & Cone System Freehub: Shimano 11-Speed Weight: 1560gTechnologies: 2:1 Two-To-One: Every push on the pedals from the rider will force most of that energy on the drive side of the rear wheel. To combat this loss of rim tension and power transfer, Fulcrum has solved this cycling problem with their 2:1 spoke ratio pattern by doubling the spoke count in crucial zones on the wheel. Anti-Rotation System: This system locks the spoke in place once the correct tension is achieved. Engineers at Fulcrum have designed this system to ensure the spokes never lose their initial tension and to remain in the position that has been proven to provide the perfect aerodynamic properties. Directional Rim-Spoke Coupling: An exclusive rim/spoke mounting system. It allows the rim, spokes, hub and nipples to align perfectly, guaranteeing the precise spoke tension in all areas around the wheel. Rim Dynamic Balance: Simple and Elegant, the weight of the rim gasket is balanced on the opposite side with an item of similar weight.Buy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fulcrum Racing 3 C17 Clincher WheelsetThe Fulcrum Racing 3 C17 Clincher Wheelset ticks all the boxes. Designed for Training, Racing and long-distance Endurance riding, it is perfect for the training cyclist who won't compromise on quality and performance. It's also ideal for long-distance riding and benefits from a reliable and durable construction. Stiff, Flex-Free & LightThis wheelset features a high-end aluminium rim construction, which provides stiffness, and flex-free performance while being lightweight. The braking profile has been precision machined and offers exceptional braking performance and consistency. This will provide a superbly comfortable and stable ride no matter how long your journey, or how rigorous your training or race session may be.Features: Material: Rim, Hubs: Aluminium; Spokes: Stainless Steel Rim Height: Front: 25mm; Rear: 30mm Internal Rim Width: 17mm External Rim Width: 23mm Braking System: Rim Brake Braking Surface: Aluminium Turned Axle Compatibility: Quick Release Spoke Count: Front: 16; Rear: 21 Spoke Type: Aero Straight-Pull Bearings: Adjustable, Cup & Cone System Freehub: Shimano 11-Speed Weight: 1560gTechnologies: 2:1 Two-To-One: Every push on the pedals from the rider will force most of that energy on the drive side of the rear wheel. To combat this loss of rim tension and power transfer, Fulcrum has solved this cycling problem with their 2:1 spoke ratio pattern by doubling the spoke count in crucial zones on the wheel. Anti-Rotation System: This system locks the spoke in place once the correct tension is achieved. Engineers at Fulcrum have designed this system to ensure the spokes never lose their initial tension and to remain in the position that has been proven to provide the perfect aerodynamic properties. Directional Rim-Spoke Coupling: An exclusive rim/spoke mounting system. It allows the rim, spokes, hub and nipples to align perfectly, guaranteeing the precise spoke tension in all areas around the wheel. Rim Dynamic Balance: Simple and Elegant, the weight of the rim gasket is balanced on the opposite side with an item of similar weight.Buy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.