Ideal for flat road racing/riding as well as time trial (TT) and triathlon (Tri) disciplines, the Prime Doyenne 56 Carbon Disc Wheelset is feature-packed with technologies to upgrade the performance of your ride. Whether you're clocking up the miles with your local road club or competing in a TT or Tri event, this versatile wheelset is developed for reliable performance. It features two high-quality T700 unidirectional (UD) carbon fibre rims, which allow it to deliver the best balance of stiffness and durability, while also keeping weight impressively low. Prime has also kitted out this version with a 56mm rim depth that offers smooth rolling properties with increased aerodynamics as you cut through the wind. Developed with Team Spectra Developed with Team Spectra, the Prime Doyenne 56 Carbon Disc Wheelset has been put through the brand's CFD testing process, where multiple sizes and shapes are trialled before coming up with the perfect blend of strength, weight and aerodynamics. As a result, you'll benefit from Prime's final product that you can trust and rely on thanks to its road testing by professional riders. Combining SR2D, 36T Ratchet System, CNC machined 6061 alloy hubs with J-Bend Pillar PDB1415 spokes, this race-ready wheelset is all set for wherever your next ride takes you. It also uses Star Ratchet hubs to ensure superior reliability due to each of the ratchets engaging simultaneously every time. Easy Maintenance and Tubeless Ready Featuring an incorporated notch, the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier. You'll also benefit from tool-free freehub conversion for straightforward upgrades and preservation in the future. Coming complete with tubeless ready technology, the Prime Doyenne 56 Carbon Disc Wheelset allows you to enjoy tubeless advantages such as the ability to run lower tyre pressures for increased traction, comfort and fewer chances of flats or punctures. This makes it a perfect upgrade for giving your ride a performance boost. In The Box: Tubeless Valves 10 speed spacer 15mm thru axle end caps QR end caps Spares (available separately) 54 Tooth Star Ratchet Upgrade Kit Black One Size SR Hub Bushing Black 12mm Star Ratchet Grease Neutral <100ml SR2D 12mm Front End Caps Black 12mm SR2D 12mm Rear End Caps Black 12mm SR2D 15mm Front End Caps Black 15mm SR2D QR Front End Caps Black QR SR2D QR Rear End Caps Black QR SR2D Disc Brake Rear Hub Grey 12 x 142mm SR2D Front Axle Silver 12 x 135mm SR2D Rear Axle Silver 12 x 142mm SR Freehub Body - Campagnolo Black 9/10/11 Speed SR Freehub Body - Campagnolo 13 Speed Black 13 Speed SR Freehub Body - Shimano Black 9/10/11 Speed SR Freehub Body - XDR Black 12 Speed Prime Crash Replacement Programme At Prime we understand that a crash or unexpected accident may occur under normal riding conditions. If in the event of a fall or accident where your Prime product sustains damage beyond repair, you can return the damaged component in exchange for a new product at 40% off the RRP. Please note that the Prime Crash Replacement Programme is only valid for the original purchaser within 2 years of purchase.
Ideal for races with rolling terrain and riding fast gravel routes, the Prime Doyenne 44 Carbon Disc Wheelset features a carbon fibre build with a 44mm rim depth and tubeless ready technology. This versatile wheelset is feature-packed with technologies to upgrade the performance of your ride. It features two high-quality T700 unidirectional (UD) carbon fibre rims, which allow it to deliver the best balance of stiffness and durability, while also keeping the weight impressively low. Prime has also kitted out this version with a 44mm rim depth that offers smooth rolling properties with increased aerodynamics as you cut through the wind. It is a perfect companion for handling the demands of rolly races/riding and fast gravel. Developed with Team Spectra Developed with Team Spectra, the Prime Doyenne 44 Carbon Disc Wheelset has been put through the brand's CFD testing process, where multiple sizes and shapes are trialled before coming up with the perfect blend of strength, weight and aerodynamics. As a result, you'll benefit from Prime's final product that you can trust and rely on thanks to its road testing by professional riders. Combining SR2D, 36T Ratchet System, CNC machined 6061 alloy hubs with J-Bend Pillar PDB1415 spokes, this race-ready wheelset is all set for wherever your next ride takes you. It also uses Star Ratchet hubs to ensure superior reliability due to each of the ratchets engaging simultaneously every time. Easy Maintenance and Tubeless Ready Featuring an incorporated notch, the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier. You'll also benefit from tool-free freehub conversion for straightforward upgrades and preservation in the future. Coming complete with tubeless ready technology, the Prime Doyenne 44 Carbon Disc Wheelset allows you to enjoy tubeless advantages such as the ability to run lower tyre pressures for increased traction, comfort and fewer chances of flats or punctures. This makes it a perfect upgrade for giving your ride a performance boost. In The Box: Tubeless Valves 10 speed spacer 15mm thru axle end caps QR end caps Spares (available separately) 54 Tooth Star Ratchet Upgrade Kit Black One Size SR Hub Bushing Black 12mm Star Ratchet Grease Neutral <100ml SR2D 12mm Front End Caps Black 12mm SR2D 12mm Rear End Caps Black 12mm SR2D 15mm Front End Caps Black 15mm SR2D QR Front End Caps Black QR SR2D QR Rear End Caps Black QR SR2D Disc Brake Rear Hub Grey 12 x 142mm SR2D Front Axle Silver 12 x 135mm SR2D Rear Axle Silver 12 x 142mm SR Freehub Body - Campagnolo Black 9/10/11 Speed SR Freehub Body - Campagnolo 13 Speed Black 13 Speed SR Freehub Body - Shimano Black 9/10/11 Speed SR Freehub Body - XDR Black 12 Speed Prime Crash Replacement Programme At Prime we understand that a crash or unexpected accident may occur under normal riding conditions. If in the event of a fall or accident where your Prime product sustains damage beyond repair, you can return the damaged component in exchange for a new product at 40% off the RRP. Please note that the Prime Crash Replacement Programme is only valid for the original purchaser within 2 years of purchase.
With stunning acceleration, the new Dura-Ace R9270 C36 wheelset will change the way you experience climbs, corners, even stoplights. This is because it isn't just how much a wheel weighs but where the weight is on the wheel that matters. The all-new C36 design shaves mass at every opportunity but especially at the rim. The result is a lively wheelset that can transform your ride. Lighter, Wider and Faster Carbon Road Race Wheel With both a lighter, wider all-carbon rim and a lighter hub, the new Dura-Ace C36 won't shy away from a day of climbing. The new rim is 36 mm deep and still delivers good aerodynamic efficiency despite its gossamer weight. Meanwhile, the hub features an alloy freehub body and a new engagement mechanism for increased 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.
Reynolds Enduro Asymmetrical Carbon MTB WheelsetEngineered for the demands of enduro racing, this high-quality wheelset is kitted out with a dependable build for tackling the most rigorous of terrain conditions. It features two asymmetric carbon fibre rims, which provide fantastic strength through more even spoke tension. Another benefit of its carbon fibre build is it allows riders to enjoy increased stiffness and durability when climbing, without any unnecessary weight holding them back when roaring down the trail.Tubeless-Ready MTB Wheelset with Hookless Rim ProfileReady for racing, this MTB wheelset is equipped with a tubeless-ready, hookless rim profile for a no-burp tyre fit and easy inflation. Thanks to its tubeless-ready technology, riders will also enjoy tubeless benefits such as lower rolling resistance, improved traction and fewer chances of flats or punctures.Black Label Mountain wheels combine Reynolds' asymmetric, hookless MR5 carbon fibre rims and Reynolds designed precision mountain hubs by Industry Nine to set the bar in mountain bike wheel performance. The rim design features a perfect balance of width, depth, and layup for wheels that provide ultimate durability, riding comfort, and trail hugging traction like you've never experienced before.- Asymmetric rim profile provides a stronger wheel through more even spoke tension- Tubeless-ready, hookless rim profile for a no-burp tyre fit and ease of inflation- Precision manufactured Reynolds hubs by Industry Nine that offer ultra-quick, 3 degrees of engagement and durability you can trust- Sapim CX-Ray spokes provide the ultimate combination of vertical strength and lateral compliance on Black Label enduro, trail and plus models- Lifetime warrantyFeatures: Rim Material: Asymmetric, hookless MR5 Carbon Fibre Axle Size: Front: 15x100mm; Rear: 12x142mm Use: MTB, Enduro Rim Width: Inner: 28mm; Outer: 34mm Rim Depth: 29mm Tubeless Ready: Yes, tubeless-ready, hookless rim profile Freehub Type: Multiple options available to select separately Spoke Type: Sapim CX-Ray Spoke Count: Front: 28; Rear: 28 Spoke Pattern: Front: 3x; Rear: 3x Hub: Front: i9; Rear: i9 Nipple: External Alloy Engagement: 3° Pawl: 6 Brake Compatibility: Centre Lock disc brake Included: 2x45mm Tubeless Valve Stems, End Caps (15mm FT/12x142mm RR installed), 30mm Tubeless Tape installed and Reynolds Owner's Manual Wheel Size: 27.5" Single or Pair: Pair Weight: 1660g (pair)Manufacturer's Part Numbers: R-WC-77511 Black 27.5" Shimano R-WC-77512 Black 27.5" SRAM XDBuy Reynolds Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Reynolds Black Label 407 Carbon MTB WheelsetFeaturing a carbon fibre rim construction with an asymmetric rim profile, this high-quality mountain bike (MTB) wheelset gives you tremendous strength and durability through even more spoke tension. Reynolds has also equipped this trail-ready model with a tubeless-ready, hookless rim profile for a no-burp tyre fit and easy inflation. This means that riders will enjoy tubeless benefits such as the ability to run lower pressure tyres, increased traction and stability as well as fewer chances of punctures or flats. Another highlight is its Sapim CX-Ray spokes that provide the ultimate combination of vertical strength and lateral compliance. One final highlight is its precision manufactured Industry Nine Hydra hubs that offer a revolutionary .52 degrees of engagement for exceptional toughness, wherever your ride takes you.Tubeless-Ready MTB Wheelset with Super Boost Axle SpacingBlack Label mountain wheels combine Reynolds' asymmetric, hookless MR5 carbon fibre rims and Industry Nine Hydra hubs to set the bar in mountain bike wheel performance. The rim design features a perfect balance of width, depth, and layup for wheels that provide ultimate durability, riding comfort, and trail hugging traction like you've never experienced before. Thanks to this version's Super Boost axle standard, it offers an even wider flange for performance advantages such as increased tyre clearance, greater lateral stiffness and more stability.- Asymmetric rim profile provides a stronger wheel through more even spoke tension- Tubeless-ready, hookless rim profile for a no-burp tyre fit and ease of inflation- Precision manufactured Industry Nine Hydra that offers a revolutionary, .52 degrees of engagement and durability you can trust- Sapim CX-Ray spokes provide the ultimate combination of vertical strength and lateral compliance on Black Label enduro, trail and plus models- Lifetime warrantyFeatures: Rim Material: Asymmetric, hookless MR5 Carbon Fibre Axle Size: Front: 15x110mm; Rear: 12x157mm, Super Boost Use: MTB Rim Width: Inner: 40mm; Outer: 45mm Rim Depth: 24mm Tubeless Ready: Yes, tubeless-ready, hookless rim profile Freehub Type: Multiple options available to select separately Spoke Type: Sapim CX-Ray Spoke Count: Front: 28; Rear: 28 Spoke Pattern: Front: 3x; Rear: 3x Hub: Front: i9 Hydra; Rear: i9 Hydra Nipple: External Alloy Engagement: .52° Pawl: 6 Decal: Black water slide Brake Compatibility: Centre Lock disc brake Included: 2x45mm Tubeless Valve Stems, 28mm Tubeless Tape installed and Reynolds Owner's Manual Wheel Size: 27.5" Single or Pair: Pair Weight: 1795g (pair)Manufacturer's Part Numbers: R-WC-79546 Black 27.5" Shimano Micro Spline R-WC-79542 Black 27.5" Shimano R-WC-79547 Black 27.5" SRAM XDBuy Reynolds Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
The most Extravagant Wheel options we could create are now available as an instant custom! This wheel consists of a Profile Z Coaster Male rear hub with optional Titanium axle upgrade & 9t Titanium Driver upgrade. Laced onto a Cinema 888 rim using Rainbow Titanium Source BMX spokes with Brass nipples. The Titanium Driver/Axle options will need to be Added to your basket as this will affect your total price. The Weight saving on this wheel when using all of the Titanium spokes & hub upgrades works out roughly 220grams / 7.7oz lighter than standard chromoly. ###section### Product Specs WHEEL SIZE:20" HUB:Profile Zcoaster Freecoaster AXLE:14mm Male DRIVE SIDE:Right Side Drive RIM:Cinema 888 SPOKES:Titanium NIPPLES:Brass WEIGHT:1276g / 2.81lbs
The most Extravagant Wheel options we could create are now available as an instant custom! This wheel consists of a Profile Z Coaster Male rear hub with optional Titanium axle upgrade & 9t Titanium Driver upgrade. Laced onto a Cinema 888 rim using Rainbow Titanium Source BMX spokes with Brass nipples. The Titanium Driver/Axle options will need to be Added to your basket as this will affect your total price. The Weight saving on this wheel when using all of the Titanium spokes & hub upgrades works out roughly 220grams / 7.7oz lighter than standard chromoly. ###section### Product Specs WHEEL SIZE:20" HUB:Profile Zcoaster Freecoaster AXLE:14mm Male DRIVE SIDE:Left Side Drive RIM:Cinema 888 SPOKES:Titanium NIPPLES:Brass WEIGHT:1276g / 2.81lbs
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.
WH-R8170 TL carbon clincher disc brake designed to meet pro road race criteriaLightweight clincher full carbon 50 mm deep rim for improved aerodynamics, increased rigidity and excellent inertia for sprinters and TT specialistsEasy to use Center Lock rotor mount for use with disc brakesStainless steel butted (2.0-1.8-2.0) and bladed straight pull spokes for optimal balance and rigidityElbow-less spokes make for a strong yet compliant wheelHigh lateral rigidity is produced with a wide flange spacingLabyrinth double-contact sealing effectively shuts out water and dirtAlloy cone with integrated steel Borozon treated bearing races - super mirror finish reduces frictionCold forged, machined aluminium hub shell and oversized 7075 alloy axle keep the wheel weight to a minimumFor 100 x 12 mm axle700C clincher compatible.
WH-R8170 TL carbon clincher disc brake designed to meet pro road race criteriaLightweight clincher full carbon 60 mm deep rim for improved aerodynamics, increased rigidity and excellent inertia for sprinters and TT specialistsEasy to use Center Lock rotor mount for use with disc brakesStainless steel butted (2.0-1.8-2.0) and bladed straight pull spokes for optimal balance and rigidityElbow-less spokes make for a strong yet compliant wheelHigh lateral rigidity is produced with a wide flange spacingLabyrinth double-contact sealing effectively shuts out water and dirtAlloy cone with integrated steel Borozon treated bearing races - super mirror finish reduces frictionCold forged, machined aluminium hub shell and oversized 7075 alloy axle keep the wheel weight to a minimumFor 100 x 12 mm axle700C tubless clincher compatible.
Our original low profile OXiCs have become a reference high-end alloy road wheel, offering exceptional handling and braking with stealthy good looks,The OXiC's reputation for outstanding braking performance however has lead to requests from those looking for a super strong wheelset for light touring or larger riders seeking braking OXiC performance in a heavier duty package, for them we have the new 32 mm version,Unique OXiC rim surface treatment, developed just for DT Swiss, gives the finest wet or dry rim braking performance ever seen on a road bike with no howling or excessive pad wear,DICUT hubs give the widest possible flange spacing for cornering stiffness and provide a rock solid anchor point for the unique DT Nail Head spokes, meaning these wheels have a class leading lateral stiffness to weight ratio,At just 1625 grams a pair these wheels may be tough, but they're not going to weigh you down,32 mm deep semi-aero SBWT welded rims with an 18 mm internal diameter (21.5 mm external) are suitable for 23-35c tyres and ideal for tubeless use although they can be used with standard clinchers,DT's legendarily reliable ratchet rear Freehub system makes these hubs solid under drive, lightweight and easy to service,DT have specced their tough butted Aero Comp spokes for the perfect balance of stiffness, comfort and low weight,Maximum recommended system weight: 130 KG,When bought as a pair they will include SwissStop BXP Blue brake pads, custom OXiC RWS skewers, rim tape and a premium tubeless valve and refill system by milKit,Weight: Front 743 grams Rear: 882 grams.
Mavic X-Max XLS MTB WheelsetComing equipped with a hard-wearing build and many of Mavic's proven technologies, this mountain bike (MTB) wheelset is fully prepared for whatever the trail might challenge you with. It features an asymmetrical aluminium maxtal rim construction, which makes it super-strong on the most demanding of terrain conditions. Its 30mm wide inner width is specifically optimised for lower tyre pressures, so you can benefit from a smoother experience with increased traction and control. Mavic has also kitted it out with its most user-friendly tubeless system yet that doesn't require any tape to set up tubeless tyres.Tubeless-Ready Alloy MTB WheelsetThis trail-ready wheelset's rims are engineered with Mavic's patented Fore technology, featuring a fully sealed upper bridge that eliminates the need for rim tape. This saves 30 grams per wheel and does away with the hassle of using tape to set up tubeless tyres. Mavic has also put this model through its ISM rim machining process, which removes material in strategic areas of the rim to minimise weight, without compromising strength. The rim has a 30mm internal width, optimised to squeeze the best performance out of any modern trail tyre, and Mavic's Black Shield technology gives them a distinctive finish that protects against scratches and abrasions.Straight-Pull Spokes and Infinity HubsMavic has equipped this MTB wheelset with 24 straight-pull spokes to further dial in the sweet spot between lateral stiffness and vertical compliance. In addition, its Infinity hubs feature a stiffer and lighter construction that is enhanced by the ultra-reliable ID360 double ratchet system for fast engagement. Only available in 29” sizing, it comes complete with UST tubeless valves, spare spokes and accessories, so you'll have everything you need to conquer your local trails.Please note: This wheelset is available in different freehub and disc brake rotor compatible options to select from the menu.- The Micro Spline freehub option is Centre Lock disc brake compatible.- The Shimano freehub option is 6-Bolt disc brake compatible.- The SRAM XD XDR freehub option is 6-bolt disc brake compatible.Features: Rim Material: S6000 Aluminum Maxtal, Asymmetrical rim design Finish: Black Shield treatment (protects against impacts and scratches) Axle Size: Front: 15x110mm; Rear: 12x148mm (Boost) Use: Mountain Bike (MTB) Wheel Size: 29" Internal Rim Width: 30mm Tyre Compatibility: Clincher ETRTO: 622x30TC Tyre Type: UST Tubeless and Tubetype Recommended Tyre Sizes: 60mm to 76mm (2.35" to 3.0") Spokes Material: Steel Spoke Count: 24 front and rear Spoke Lacing: Front and rear crossed 2, contactless Spoke Nipples: Fore integrated Aluminium Axles: Front 15x110 Boost; Rear 12x148 Boost Freehub: Multiple options available to select from the drop-down menu ATSM Category: 4: Enduro and Trail Riding Delivered With: Fore adjustment wrench, 2 replacement spokes with each wheel, Multi-function adjustment wrench (delivered with rear wheel), UST valve and accessories Brake Type: Disc brake Disc mount: Multiple options available to select Single or Pair: Pair QRM Auto bearing preload technology Instant Drive 360 freewheel technology SUP welding technology Fore tapeless tubeless technology Max Rider Weight: 120kg (including bike) Weight: 29": 1790g (Front: 830g; Rear: 960g)Technologies: Maxtal Aluminium Alloy: Light and strong Exclusive to Mavic, this specific aluminium alloy offers a higher strength to weight ratio than conventional 6106 alloy. Fore Tapeless Tubeless Technology: Stiffer and stronger Instead of being drilled, the lower rim bridge is pushed up on the inside, then threaded to enable the spoke nipples to be directly screwed in it, leaving the upper rim bridge intact. UST Tubeless Technology: Traction and control Universal Standard for Tubeless. Ready to ride tubeless system. The UST concept improves traction, control and comfort whilst reducing inertia and flats. Instant Drive 360 Freewheel Technology: The Instant Drive 360 freewheel system is super light and efficient. A large contactless rubber seal provides low friction, while a wide array of end caps makes it super versatile. Black Shield Treatment (protects your rim against impacts and scratches): New MTB rim treatment. 2x superior lifetime against rock impacts and scratches. QRM Auto Bearing Preload Technology: Qualité de Roulements Mavic Auto is Mavic's latest innovation. Those cartridge bearings are of course double sealed with C3 internal clearance. Their preload is automatically adjusted to guarantee a perfect spin with no play on the long run. SUP Welding Technology: Stronger and smoother joint Soudé Usiné Process. After bending, the rim joint is arc welded. The welded seam is then milled for a smooth finish.Manufacturer's Part Numbers: P1621115 Black 29" Micro Spline (Cenre Lock Disc Brake) P1618110 Black 29" Shimano (6-Bolt Disc Brake) P1619110 Black 29" SRAM XD XDR (6-bolt Disc Brake)Buy Mavic Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.