Pro 4 Rear hub Microspline Freehub Bodies - Supplied with Drive Side spacer
DT Swiss EX1700 Spline 30 Boost Disc Rear WheelLaced to double butted competition straightpull spokes, the DT Swiss EX1700 Spline 30 Boost Disc Rear Wheel is built to take a beating on the harshest and most challenging mountain bike (MTB) trails.DT Swiss has taken all its aluminium wheel know-how and put it in this high performing package. The EX1700 Spline 30 Boost wheel is based on its famous 36 tooth Ratchet hub, combining it with a super strong and welded 30mm wide aluminium rim. The rim profile is designed to withstand the hardest use of Enduro racing while still keeping the weight low for long and demanding uphills. Laced to double butted competition straight pull spokes, the EX 1700 SPLINE wheel is built to take a beating.Features: Material: Aluminium Rim type: Clincher, Tubeless Compatible Rim Width: Inner: 30mm; Outer: 35mm Hub Type: DT Swiss 350 Hub Width: 12x148mm Boost Brake Interface: Disc brake, CentreLock Freehub system: Ratchet System 36 SL Cassette Compatibility: Shimano 12-Speed Microspline Spokes: DT competition straightpull - Spoke pattern 3-cross (1:1) Nipples: DT ProLock Squorx ProHead Maximum Recommended System Weight: 130kg (Rider+bike+gear)Buy DT Swiss Wheels&Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
DT Swiss E1900 Spine Boost Disc WheelsetThe DT Swiss E1900 Spline Boost Disc Wheelset is designed to impress on the Enduro circuit. It's lightweight, stiff, flex-free, responsive and ultra-reliable. Plus, they're light enough for racing up climbs and going full speed on the descents.Iconic DT Swiss Hub TechnologyDT Swiss hubs have earned their legendary reputation for quality and performance. There are multiple features that make this hub design a winner: The Ratchet System driver mechanism is extremely durable, reliable and can be serviced without special tools in minutes, thanks to its simple press fit assembly. The press fit assembly also allows all hubs to work in almost any currently existing axle configuration, making them compatible with almost every bike. The contact-free seals and high precision build guarantee smooth bearings; every bit of the rider’s energy is transformed into forward momentum. These features and the super lightweight design of all the hub parts highlight the racing legacy of this classic hub.Tubeless Compatible Performance GainTubeless tyres have several advantages over the conventional combination of tube and tyre. The tyre can run with lower pressures to provide a better grip without risking snakebites. The lower pressure also results in a more comfortable ride. Eliminating the tube means there is no friction between tube and tyre and therefore less rolling resistance when the tyre rolls over the ground and obstacles. If tubeless milk is used, the tyre can self-seal stings and small cuts. A big advantage for all those who like to ride for long and far away from the nearest bike shop.Straight-Pull Spoke Engagement The term Straight-Pull refers to spokes with no bend at the head. This design allows for an ideal strength to weight ratio when compared to conventional spokes. Due to their more precise alignment and direct trajectory, Straight-Pull spoke technology creates a stiffer, more responsive wheel.Pro Lock Nipple Reinforcement DT Pro Lock nipples prevent the spoke-nipple connection from loosening. This patented locking system is based on a special pre-applied dual compound adhesive, which coats the nipple threads. As soon as the nipples are twisted, the dual compound adhesive starts to react and is completely hardened after 6-7 hours. Internal tests show that the reliability and durability of a wheel built with DT Pro Lock nipples are increased up to twenty times compared with the use of standard nipples.Features: Material: Aluminium Rim Type: Clincher, Tubeless Compatible, 28H Rim Internal Width: 25mm Tubeless Compatible: Yes Valve Type: Presta compatible Brake Compatibility: Disc, 6-bolt fitment Spokes: DT Competition, straight-pull Nipples: DT ProLock Squorx ProHead Hub Type: 350, Cassette Compatibility: Shimano 12-Speed Microspline Disc Rotor Fitting: 6-BoltBuy DT Swiss Wheels&Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
DT Swiss X1700 Spline 25 Boost WheelsetThe DT Swiss X1700 Spline 25 Boost Wheelset is an excellent performing, super-tough Cross Country (XC) wheel. Also ideal for Trail riding, it provides exceptional efficiency thanks to the Ratchet System freewheel and its flex-free construction.Coming tubeless ready for ultimate traction and control, this reliable and hard-riding rear wheel is designed to dominate on every ride. Built with a wide-profile, the aluminium construction stays lightweight and durable, no matter what the conditions are, so you can ride with confidence. Equipped with a DT350 Spline hub design, DT Competition Straightpull spokes and Pro Lock nipples, the wheelset rolls brilliantly and stays strong on the toughest trails.With a Ratchet System freehub that is easy to fit and very low-maintenance, the X1700 Spline 25 Boost Wheelset has everything the serious XC rider could ever want from a top-performing back wheel.Hub Technology DT Swiss hubs have earned their legendary reputation for quality and performance. There are multiple features that make this hub design a winner: The Ratchet System driver mechanism is extremely durable, reliable and can be serviced without special tools in minutes, thanks to its simple press fit assembly. The press fit assembly also allows all hubs to work in almost any currently existing axle configuration, making them compatible with almost every bike. The contact free seals and high precision build guarantee smooth bearings; every bit of the rider’s energy is transformed into forward momentum. These features and the super lightweight design of all the hub parts highlight the racing legacy of this classic hub.Features: Material: Aluminium Rim Type: Clincher, Tubeless ready Hub Type: DT 350 (Cassette Compatibility: Shimano 12-Speed Microspline) Spokes: DT Competition Straightpull Nipples: DT ProLock Squorx ProHead Aluminium Inner Width: 22.5mm Outer Width: 27mm Axle Type: 12mm Thru Axle Recommended System Weight Max: 110kgASTM Classification: 2 Technologies: Straight-Pull: The term Straight-Pull refers to spokes with no bend at the head. This design allows for an ideal strength to weight ratio when compared to conventional spokes. Due to their more precise alignment and direct trajectory, Straight-Pull spoke technology creates a stiffer, more responsive wheel Tubeless-Ready: Tubeless tyres have several advantages over the conventional combination of tube and tyre. The tyre can run with lower pressures to provide a better grip without risking snakebites. The lower pressure also results in a more comfortable ride. Eliminating the tube means there is no friction between tube and tyre and therefore less rolling resistance when the tyre rolls over the ground and obstacles. If tubeless milk is used, the tyre can self-seal stings and small cuts. A big advantage for all those who like to ride for long and far away from the nearest bike shop ProLock: DT Pro Lock nipples prevent the spoke-nipple connection from loosening. This patented locking system is based on a special pre-applied dual compound adhesive, which coats the nipple threads. As soon as the nipples are twisted, the dual compound adhesive starts to react and is completely hardened after 6-7 hours. Internal tests show that the reliability and durability of a wheel built with DT Pro Lock nipples are increased up to twenty times compared with the use of standard nipplesBuy DT Swiss Wheels&Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
DT Swiss M1700 Spline Boost Disc WheelsetThe DT Swiss M1700 Spline Boost Disc Wheelset is designed to embrace the demands of modern trail riding. These mountain bike (MTB) wheels are constructed to be stiff, flex-free, responsive and reactive. They're also stable and fast rolling.Optimised to roll fast and to provide confidence-inspiring control over jagged rock gardens, rough rooted terrain, drops and off-camber unpredictable trail sections, this wheelset provides exceptional rolling performance and stability. This ensures you'll travel fast when you need to and do so with total confidence thanks to the superior stability it provides.Tubeless ReadyTubeless tyres have several advantages over the conventional combination of tube and tyre. The tyre can run with lower pressures to provide a better grip without risking snakebites. The lower pressure also results in a more comfortable ride. Eliminating the tube means there is no friction between tube and tyre and therefore less rolling resistance when the tyre rolls over the ground and obstacles. If tubeless milk is used, the tyre can self-seal stings and small cuts. A big advantage for all those who like to ride for long and far away from the nearest bike shop.SplineWith Straight-Pull spokes and the use of a specific lacing pattern, superlight hubs as well as high-end rims featuring key DT Swiss technology, SPLINE wheels make for a perfect training and racing partner.Straight-PullThe term Straight-Pull refers to spokes with no bend at the head. This design allows for an ideal strength to weight ratio when compared to conventional spokes. Due to their more precise alignment and direct trajectory, Straight-Pull spoke technology creates a stiffer, more responsive wheel.Pro Lock Spoke NipplesDT Pro Lock nipples prevent the spoke-nipple connection from loosening. This patented locking system is based on a special pre-applied dual compound adhesive, which coats the nipple threads. As soon as the nipples are twisted, the dual compound adhesive starts to react and is completely hardened after 6-7 hours. Internal tests show that the reliability and durability of a wheel built with DT Pro Lock nipples are increased up to twenty times compared with the use of standard nipples.Features: Material: Aluminium Rim Type: Clincher; Rim Width: Inner: 30mm; Outer: 35mm Tubeless Ready: Yes Brake Compatibility: Disc (6-bolt fitment) Hub Type: DT 350 (Cassette Compatibility: Shimano 12-Speed Microspline) Hub Width: Front: 15x110mm; Rear 12x148mm Spokes: DT competition, straight-pull Nipples: DT ProLock Squorx ProHead Disc Brake Interface: 6-Bolt Weight: 1949g Buy DT Swiss Wheels&Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
DT Swiss H1900 Spline Boost Rear WheelReady for the toughest electric mountain bike (E-MTB) adventures, the tubeless ready DT Swiss H1900 Spline Boost Rear Wheel has the strength and responsive performance you need for conquering the toughest trails.When motor assistance and leg power meet, the range of terrain a bike can conquer grows almost exponentially. The H 1900 SPLINE is designed for this, now upgraded with the famous DT Swiss Ratchet technology.The Ratchet LN system distributes the combined forces from the rider and the motor over a larger area than the previous pawl freehub systems, increasing the systems’ durability thanks to lower load peaks. The 370 hub enables full power transmission to the ground with reinforced hybrid spokes laced to a resistant aluminium rim.Features: Rim Material: Aluminium (sleeve joint, Hooked / Crotchet tubeless TC) Rim Type: Clincher Rim Width: Inner 30mm: Outer: 35mm Rim Depth: 20mm Brake Type: Disc (6-bolt fitment) Tubeless Compatible: Yes Hub: DT Swiss 370 (Shimano 12-Speed Microspine freehub) Hub Width: 12x148mm (Boost) Maximum Load: 150kg (Bike+rider+gear) Weight: 1174gBuy DT Swiss Wheels&Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
DT Swiss H1700 Spline 30 Boost Disc Rear WheelReady for the extra demands of your toughest E-MTB rides, the tubeless ready DT Swiss H1700 Spline 30 Boost Disc Rear Wheel brings you extra strength and control for attacking the harshest terrains with confidence.An electric mountain bike (E-MTB) is designed to quickly ride up and down mountains and to provide fun. The H 1700 model is a high-end aluminium wheel that does precisely that. With several years of expertise in hybrid bicycle components and specific, demanding testing procedures, DT Swiss has redesigned this wheel to suit the extended use of e-mountain biking.The redesigned 350 hub features a bigger hub body, enabling better brake and drive torque resistance, resulting in better durability. The hub is now combined with a high-end welded aluminium rim and reinforced hybrid spokes. This mountain bike wheel is ready for anyone who wants to extend their eMTB adventure.Features: Rim Type: Clincher Rim Material: Aluminium Rim Width: Inner: 30mm; Outer: 35mm Brake Type: Disc brake (6-Bolt) Tubeless Compatible: Yes Hub Width: 12x148mm (Boost) Rim: Wheel size: 27.5" Rim depth: 20mm ETRTO: 30 - 622 For Presta valve (6.5mm diameter) Tubeless ready Suitable for tyre widths: 1.5" - 3.0" Spokes and nipples: Spoke type: DT Swiss hybrid 1 straightpull Number of spokes: 28 pcs each Lacing: 3-cross Nipples: DT Swiss ProLock Squorx ProHead aluminium Hub: 350, Spline, hybrid, 4 sealed cartridge bearings Steel freehub and aluminium body IS 6-bolt brake rotor mount Ratchet freewheel system, 24T (15° degree engagement) Axle: 12x148mm (BOOST thru axle) Cassette compatibility: SHIMANO 12-speed MICRO SPLINE MTB cassettes (& SHIMANO 11-speed WIDE FLANGE MICRO SPLINE MTB cassettes) Total Wheel Weight: Approx. 1177g ASTM classification: 4 (for extremely rough, blocked terrain with jumps/drops of up to 121cm) Max. system weight: 150kg (cyclist, bike, gear and luggage) In the box: 1x DT Swiss H 1700 Spline 30 Hybrid BOOST rear wheel SHIMANO MICRO SPLINE 1x DT Swiss tubeless-ready rim tape (pre-mounted) 1x DT Swiss tubeless valveBuy DT Swiss Wheels&Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
DT Swiss M1900 Boost Disc WheelsetAfter a long climb, the perfect trail lies ahead of your tyres: flowy, dusty, varied, endless. Nothing holds you back from entering the All Mountain (AM) thrills with the M 1900 SPLINE. With rims developed with an optimal balance of durability and weight, these tough MTB wheels offer efficient climbing characteristics as well as dent resistance on single trails. Thanks to the updated Ratchet LN system and experienced wheel building by hand, this wheelset is a reliable pair for collecting freewheeling moments in the mountains.Sleeved Alloy RimsTubeless-capable, sleeved aluminium rims, featuring a specific 30mm internal width for efficiency and grip. DT Swiss rims are known and appreciated for their low weight, high quality and strength.HubThe M 1900 SPLINE 370 hub is now upgraded to the Ratchet LN freehub system for even higher reliability.The reliability of the Ratchet System comes from the fact that each tooth engages simultaneously. In comparison, the pawl system has much smaller engagement surfaces.SpokesThe 2.0 mm diameter DT champion spoke is made of steel to resist the high radial forces that occur on the wheel from the drive and brake torques.Brake InterfaceThe M 1900 SPLINE is available in centerlock and comes with an IS 6-bolt adapter.Features: Rim: Aluminum, Hooked / Crotchet tubeless TC Rim Inner Width: 30mm Tubeless Compatible: Yes Hub Type: 370 with Ratchet LN 18 Hub Widths: Front: 15x110mm; Rear: 12x148mm Cassette Compatibility: Shimano 12-Speed only (Microspline) Spokes: DT champion straightpull Spoke Count: Front/Rear: 28H (3-cross pattern) Pro Lock black spoke nipplesBuy DT Swiss Wheels&Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
DT Swiss M 1900 SP 30mm Mountain Bike Rear WheelReady for whatever the mountain can throw at you, the M 1900 straight pull (SP) 30mm rear mountain bike (MTB) wheel has a wide aluminium rim for use with today’s trend towards wider tyres. DT Swiss has created it to withstand the challenge of descending over technical terrain and to help you to maintain your line as you’re maintaining your speed.Fast Rolling and Disc Brake CompatibleKitted out with 28 DT Champion straight-pull spokes, the wheel rolls with optimum tension and toughness, with the hub acting as the ideal anchor for them. The hub itself ensures a smooth and reliable rotation and houses a freehub (various options available to select) for impressive power transfer as you ascend intimidating inclines and sprint on through singletracks. CenterLock disc brake-optimisation also improves confidence and control in all weathers, letting you ride as aggressively as you like. Coming tubeless-ready for superior grip, control and puncture protection with lower tyre pressures, the DT Swiss M 1900 SP 30mm Mountain Bike Rear Wheel is an excellent option for the adaptable off-road rider.Features: Rim Material: Aluminium Rim Type: Clincher Internal Rim Width: 30mm External Rim Width: 35mm Tubeless-Ready: Yes Spokes: DT Champion Straightpull Spoke Pattern: 3-cross lacing Spoke Nipples: DT ProLock Squorx ProHead aluminium nipples Freehub: Multiple options available to select from the drop down menu Axle Compatibility: Separate 12x142mm thru-axle or 12x148mm Boost options Disc Brake Standard: CenterLock Use: Cross Country (XC), All-Mountain (AM), Enduro Cassette Compatibility: SRAM XD Option: SRAM XD 11/12-Speed cassettes Shimano Option: 9,10 and 11-Speed Shimano type cassettes Shimano 12SP Option: Shimano Microspline 12-Speed cassettes only Recommended Maximum Rider Weight: 120kg Includes: Rear wheel, 32mm tubeless tape, 32mm tubeless valve, 6-bolt rotor mount adaptorBuy DT Swiss Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Spank SPIKE 33 Rear Mountain Bike WheelFeaturing a tough alloy construction, this mountain bike (MTB) rear wheel is specifically designed for the demands of modern racing. Spank has also equipped it with a shot peen finish, which increases its fatigue life and makes it more durable as you dominate your way across the more demanding of trail conditions.Trail-Ready Rear Wheel with Tubeless-Ready TechnologySpank has kitted out this rear wheel with tubeless-ready technology, which means that riders will enjoy tubeless benefits such as the ability to run lower air pressure. As a result, it provides increased stability on rough terrain, greater comfort and less chances of punctures or flats. Another highlight is its anti-burp rim hooks, which prevent pressure loss while holding your rear tyre firmly in place.Brass External Nipples and Triple-Butted J-Hook SpokesReady for wherever your next trail adventure or event takes you, this MTB back wheel features high-quality brass external nipples and triple-butted J-hook spokes for a superior strength to weight ratio. With a 32 hole spoke count and an inner width of 28mm and outer width of 33mm, this model optimises tyre spread and enhances traction. In addition, its corrugated rim centre adds exceptional strength, making it more rigid and allowing the rim to be wider without adding material. As a result, the Spank SPIKE 33 Rear MTB Wheel is a perfect choice of upgrade for fast and reliable performance as you conquer the harshest of terrain conditions.Features: Material: Alloy with a Shotpeen finish Use: MTB Axle Size: 12x150/157mm Rim Width: Inner: 28mm; Outer: 33mm Profile Height: 22mm Hole Count: 32H Wheel Size: 27.5"/650b Tyre Fit: 1.9" to 2.5" Brake Type: 6-bolt disc brake Build: Handbuilt Hub: Spank Hex J-Type Spokes: J-Hook, triple-butted 2.2/1.8/2.0 Nipples: Brass external Lacing: 3-cross lacing Valve: F/V Presta Hub Material: CNC-optimised forged Alloy hub body, Alloy axle and Alloy freehub body Hub Engagement: Hex Drive 102T / 3.5° / 6 Pawl Freehub: Multiple options available to select Tubeless Ready: Yes Included: Tubeless taped & valved ASTM Category: 5 Single or Pair: SingleManufacturer's Part Numbers: C090922RFXJ220A Black 27.5" SRAM XD C090922RF3J220A Black 27.5" Micro SplineBuy Spank Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Spank 359 Vibrocore Rear MTB WheelThis rear wheel is trusted by UCI Downhill World Cup racers such as Tracey Hannah and Remi Thirion and it's built for riders wanting to push the limits of mountain biking (MTB). It features a robust aluminium rim construction with a low profile and a 35mm outer width for an ideal balance between radial compliance and lateral stiffness. Spank has also equipped this model with 32 J-Hook spokes and a HEX J-Type hub for strong and stable rolling efficiency, even on the most demanding of terrain and course conditions.Race Ready MTB Rear Wheel with Tubeless Ready TechnologyWhether you're competing in a downhill racing event or simply exploring your favourite local trails, this MTB rear wheel is engineered to deliver a buttery-smooth and highly predictable ride feel. Coming equipped with tubeless ready technology, you'll benefit from tubeless advantages such as the ability to run lower tyre pressures for increased traction on rough terrains, lower rolling resistance and fewer risks of flats or punctures as you battle for the finish line. With improved traction over bumps with reduced negative feedback, this model truly maximises performance and comfort.Vibrocore DampingSpank has injected this MTB rear wheel with an award-winning built-in damping system called Vibrocore. Its proprietary, biodegradable, complex foam core is designed to reduce vibrations from the ground, while also increased the fatigue life of the rim. Its foam construction increases its torsional strength, making it highly durable at an incredibly low weight. As a result, you'll notice a reduction in the dreaded arm pump associated with trail-riding and an increase in comfort and stability.Features: Material: Aluminium Axle: 12x148mm, Boost Use: Mountain Bike (MTB), Downhill (DH) and Enduro Rim Width: Inner: 30.5mm; Outer: 35mm Profile Height: 19mm Hole Count: 32H J-Hook Tyre Fit: 2.0" to 2.6" ETRTO: 27.5": 584x30.5; 29": 622x30.5 ERD: 27.5" Option: 560; 29" Option: 598 Build: A-Class Handbuilt Hub: Spank HEX J-Type Hub Engagement: HEX Drive 102T / 3.5° / 6 Pawl Hub Material: CNC optimised forged Alloy hub body, Alloy axle, Alloy freehub body Spokes: J-Hook, triple-butted 2.2/1.8/2.0 Lacing: 3 cross lacing Nipples: Brass external Valve: F/V Presta Tubeless: Tubeless taped & valved Brake Compatibility: 6-bolt disc brake Freehub Compatibility: Micro Spline ASTM Category: 5 Tubeless Ready: Yes Single or Pair: SingleTechnologies: A low profile and a wide width rim provides the perfect balance between radial compliance and lateral stiffness. All this giving you a buttery-smooth and highly predictable ride feel, improved traction over bumps with reduced negative feedback. This truly maximises the performance and comfort of the rider. That same rim is also injected with Spanks Award-Winning Vibrocore. Designed to reduce the dreaded arm pump by dampening the vibrations from the ground to the rider. While also increasing the fatigue life of the rim. A 30.5mm inner rim width is extremely versatile, fitting 2.0” to 2.6” tyres. Even allowing +sized tyre use without negatively squaring off their profile. Laced to the rim is Spank's new HEX Drive Hub with a 102 tooth, 6 pawl ratchet for a 3.5-degree engagement. For almost instant power to the cranks, meaning faster out the start gate and out of turns, while feeling really solid through rough terrain. With Bead Bite tubeless hooks to enhance tubeless performance and tyre security, even when running lower pressures.Manufacturer's Part Numbers: C090122RE3J220A Black 27.5" Micro Spline C090132RE3J220A Black 29" Micro SplineBuy Spank Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
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.