The world of Gravel riding is tough to define with every cyclist likely to do things slightly differently from one another. It is with versatility in mind that Fulcrum have designed the Rapid Red 3. This is a completely new project designed for mixed terrain, constructed from a fully CNC machined piece of aluminium, which keeps them lightweight. These wheels are designed to be versatile, light and durable. KEY FEATURES TYRE TYPE: 2-Way Fit Ready (for clincher and tubeless ready) TYRE SIZE: 650B DISCIPLINE: B-ROAD (Gravel) ASTM CATEGORY: 2 WEIGHT: 1640 g RIM MATERIAL: Aluminium (6082, T6 Pre-Aging) RIM MATERIAL DETAILS: R2-Milling PROFILE HEIGHT: Low RIM HEIGHT: Front and rear: 24 mm RIM WIDTH: 29 mm INNER RIM WIDTH (CHANNEL): 24 mm TYRE WIDTH: from 40 to 60 mm BRAKING SYSTEM: Disc brake BRAKING SURFACE/BRAKES OPTIONS: AFS DISC BRAKE OPTION FRONT AXLE COMPATIBILITY: HH12-100 REAR AXLE COMPATIBILITY: HH12-142 FRONT WHEEL SPOKES: 24 REAR WHEEL SPOKES: 24 SPOKES: MATERIAL: Stainless steel, double butted SPOKES: PROFILE: Rounded, straight pull NIPPLES: Aluminium FRONT HUB: Aluminium, oversize flange REAR HUB: Aluminium, oversize flange BEARINGS: Adjustable Cup & Cones bearing system OTHERS: Reflective stickers, Aluminium axle WEIGHT LIMIT: 120 kg (comprising cyclist, bike, equipment and luggage) FWB OPTIONS: HG11, XDr, N3W
Developed with Team Spectra in search of the marginal gains that could help them in some of the UK's biggest races, this rear wheel is designed for flat road races as well as time trial and triathlon racing. Featuring a stiff and lightweight T800 UD carbon fibre rim construction, this model provides an excellent strength-to-weight ratio to give you maximum smoothness without adding any unnecessary excess grams to your ride. Prime has also put this version through its CFD testing process, where multiple sizes and shapes were used before coming up with the perfect blend of strength, weight and aerodynamics. Greater Strength To Weight Ratio Built-up using an SR1D, CNC machined 6061 alloy hub body and DT Swiss straight pull spokes, the Prime Primavera 56 Carbon Disc Rear Wheel creates a stiffer wheel with a greater strength to weight ratio and more reactivity. Its Star Ratchet hub also provides superior reliability, due to each of the ratchets engaging simultaneously every time. Prime has also ensured that tool free freehub conversion is possible. Coming kitted out with an incorporated notch, the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier. Tubeless Ready Carbon Rear Wheel Developed to give modern riders and racers a much-needed performance upgrade, this rear wheel comes kitted out with tubeless ready technology. This means that you can choose to run it tubeless and enjoy advantages such as the ability to run lower tyre pressures for increased stability, comfort and fewer chances of flats or punctures. In The Box: x2 Spare Spokes x2 Nipples Tubeless Valve QR Skewer 10 speed spacer 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 SR1D 12mm Rear End Caps Black 12mm SR1D QR Rear End Caps Black QR SR1D 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.
Wider = Improved Performance Developed with Team Spectra, this race-ready front wheel features an 85mm deep aero rim profile, meaning you get more speed for the same effort. A wider rim profile creates a more linear contour with the tyre to increase the Primavera 85's aerodynamic properties. Greater Strength To Weight Ratio Built up using a SR1 CNC machined 6061 alloy hub and DT Swiss straight pull spokes, this model creates a stiffer wheel with a greater strength to weight ratio and more reactivity. Featuring an incorporated notch, the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier. Aero Advantage If you're looking for an advantage in your next TT or Triathlon event, the Prime Primavera 85 Carbon front wheel is a perfect choice of upgrade to improve your ride. Lightweight Rim Prime has experimented with numerous types of resin and tested countless new lay ups before they settled on the new and improved Primavera 85 rim. But that’s not all, they've upgraded to a higher grade of carbon, saving precious grams, and improving on the impact strength/weight ratio making the new Primavera 85 their best rim yet. In The Box: x2 spare spokes x2 nipples Tubeless Valve QR skewer Prime Carbon brake pads Spares (available separately) SR1 Front Axle Silver QR SR1D QR Front End Caps Black QR 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.
Hand built in Southern California, Box Three Wheels are made with Box One front and rear rims and 36-hole, Box Three Pro Hubs laced 3-cross front and rear with 14-gauge stainless steel spokes and brass nipples. Each wheelset is built with Wheelsmith Spoke Prep and inspected using a DT Swiss tension meter for quality control. Includes both front and rear wheels. ###section### Product Specs WHEEL SIZE:20" HUB:Box Three AXLE:TBC DRIVE SIDE:RHD RIM:Box One (Focus) Rim SPOKES:16 gauge stainless steel spokes NIPPLES:Nipples WEIGHT:TBC
Prime RR-38 V3 Carbon Clincher WheelsetDesigned for everything from racing to training, this versatile wheelset from Prime is made to out-perform on the track, whatever your discipline. Made from a unidirectional carbon fibre material, it is exceptionally durable and stiff, so it can withstand whatever challenges you meet on the trail. Featuring a revised wider rim profile, this wheelset offers reliable aerodynamics, comfort, speed and traction to your bike.Customisable WheelsetDeveloped for victory, this clincher wheelset is also designed to look as amazing as it performs thanks to its customisable design. Prime has kitted out this version with grey stickers already applied, but sticker packs are also available separately in a range of different colours. This means that you can benefit from its eye-catching finish and customised look that matches your ride as you battle for the silverware.Features: Rim Material: T700 UD Carbon Fibre Rim: 19mm internal, 27.5mm external, 38mm deep Hubs: R020, CNC machined 6061 Alloy hub body, Shimano/SRAM 9/10/11 speed freehub Spokes: Pillar PDB 1415, double-butted Tape: Tubeless Tape factory applied Hub Bearings: Front: 2x 689; Rear: 1x 6802 & 1x 15267; Freehub: 2x 6902 ERD: 563mm Spoke Length: Front Drive Side: 272mm; Front Non-Drive Side: 272mm; Rear Drive Side: 275mm and Rear Non-Drive Side: 278mm In The Box: Prime QR skewers, Prime Carbon Brake Pads and 10-speed adaptor Shimano/SRAM 9,10,11-Speed compatible (Campagnolo and XDR freehubs sold separately) Rider Weight Limit: 100kg Weight: 1520gPrime Crash Replacement ProgrammeAt 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.Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Primavera 85 Carbon Rim Brake Front Wheel Wider = Improved PerformanceReady for racing, this front wheel features an 85mm deep aero profile that delivers more speed for the same effort. Ideal for time trial (TT) and triathlon (tri) racing, this model was developed with Team Spectra in search of the marginal gains that could help them in some of the UK's biggest races. By using a wider rim profile, it creates a more linear contour with the tyre to increase the Primavera 85's aerodynamic properties.Greater Strength To Weight RatioBuilt up using a SR1 CNC machined 6061 alloy hub and DT Swiss straight pull spokes, this model creates a stiffer wheel with a greater strength to weight ratio and more reactivity. Featuring an incorporated notch, the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier.Aero AdvantageIf you're looking for an advantage in your next TT or Triathlon event, the Prime Primavera 85 Carbon Rim Brake Front Wheel is a perfect choice of upgrade to improve your ride.Lightweight RimPrime has experimented with numerous types of resin and tested countless new lay ups before they settled on the new and improved Primavera 85 rim. But that's not all, they've upgraded to a higher grade of carbon, saving precious grams, and improving on the impact strength/weight ratio making the new Primavera 85 their best rim yet.Features: Rim Material: T800 UD Carbon Fibre Use: Time Trial (TT) and Triathlon (Tri) Axle Size Compatibility: Front: 100x9mm QR Rim Width: 20.3mm (internal); 27.5mm (external) Rim Depth: 85mm Rim Type: Clincher Hub: SR1 CNC machined 6061 Alloy hub body Hub Bearings: 2x 699 Spokes: Aerolite, 226mm Tubeless Ready: Yes UCI Approved: Yes Brake Type: Rim Brake Rider Weight Limit: 100kg Weight: 888gIn The Box: 2 spare spokes 2 nipples Tubeless Valve QR Skewer Prime Carbon brake padsSpares (available separately)SR1 Front Axle Silver QRSR1D QR Front End Caps Black QRPrime Crash Replacement ProgrammeAt 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.Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Primavera 56 Carbon Disc Rear WheelDeveloped with Team Spectra for flat road races as well as time trial and triathlon racing, this rear wheel features a stiff and lightweight T800 UD carbon fibre rim construction to give you maximum performance without adding any unnecessary excess grams to your ride. Prime has also put this version through its CFD testing process, where multiple sizes and shapes were used before coming up with the perfect blend of strength, weight and aerodynamics.Greater Strength To Weight RatioBuilt-up using an SR1D, CNC machined 6061 alloy hub body and DT Swiss straight pull spokes, the Prime Primavera 56 Carbon Disc Rear Wheel creates a stiffer wheel with a greater strength to weight ratio and more reactivity. Its Star Ratchet hub also provides superior reliability, due to each of the ratchets engaging simultaneously every time. Prime has also ensured that tool free freehub conversion is possible. Coming kitted out with an incorporated notch, the newly developed shape of the end caps simplifies disassembly significantly and therefore makes maintenance even easier.Tubeless Ready Carbon Rear WheelDeveloped to give modern riders and racers a much-needed performance upgrade, this rear wheel comes kitted out with tubeless ready technology. This means that you can choose to run it tubeless and enjoy advantages such as the ability to run lower tyre pressures for increased stability, comfort and fewer chances of flats or punctures.Features: Rim Material: T800 UD Carbon Fibre Use: Road, Time Trial (TT) and Triathlon (Tri) Axle Size Compatibility: 142x12mm Rim Width: 23mm (internal); 30mm (external) Rim Depth: 56mm Rim Type: Clincher Hub: SR1D, CNC machined 6061 Alloy hub body Freehub: Shimano/SRAM 9/10/11 speed Hub Bearings: 1x 6902, 1x 17287, Freehub: 2x 6802 Spokes: Straight Pull DT Aerolite (non-drive), DT Aero Comp (drive side) Tubeless Ready: Yes UCI Approved: Yes Brake Type: Disc Brake Disc Mount: Centre Lock Rider Weight Limit: 110kg Weight: 955gIn The Box: 2 spare spokes 2 nipples Tubeless Valve QR Skewer 10 speed spacer QR end capsSpares (available separately)54 Tooth Star Ratchet Upgrade Kit Black One SizeSR Hub Bushing Black 12mmStar Ratchet Grease Neutral 100mlSR1D 12mm Rear End Caps Black 12mmSR1D QR Rear End Caps Black QRSR1D Rear Axle Silver 12 x 142mmSR Freehub Body - Campagnolo Black 9/10/11 SpeedSR Freehub Body - Campagnolo 13 Speed Black 13 SpeedSR Freehub Body - Shimano Black 9/10/11 SpeedSR Freehub Body - XDR Black 12 SpeedPrime Crash Replacement ProgrammeAt 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.Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Zonda C17 Disc Road WheelsetThe Zonda C17 Disc Road Wheelset from Campagnolo is their most premium model and benefits from a lightweight and durable construction for race-ready high-performance you can count on. Reliability, Performance, Integrity & SafetyThough the wheelset has been developed at a time where there are plenty of options for road disc wheelsets in the market, there is a lack of options offering the level of reliability, integrity, performance and safety associated with Campagnolo wheels.Respected in MarketplaceThe Zonda™ is exceptionally well respected in the marketplace and performs over and above its competitors. The Zonda™ disc is more reactive than the rim brake version and 25g lighter than its closest competitor.Wheelset Includes:User manual“Quick Release” wheel locks 142/135 mm rear wheel conversion kit (HH12 version)Features:Asymmetric Rims Profile (26mm - 28mm) Milled Rim: This machining makes it possible to reduce the peripheral weight of the rim and makes the wheel extremely reactiveSpokes: G3 technology applied also to the front wheel to better perform at high braking powerFront Wheel Spokes: 14 spokes in stainless steel, section diameter 2/1.6/2mm (left side - braking side), 7 spokes in stainless steel, section diameter 2/1.6/2mm (right side)Rear Wheel Spokes: 7 spokes in stainless steel, section diameter 2/1.6/2mm (left side - braking side), 14 spokes in stainless steel, section diameter 2/1.6/2mm (right side - cassette side)Nipples: Black anodised self-locking nipples outside the rim allows for easy maintenanceCup and Cone Bearings: Easy bearing adjustment that reduces possible bearing play, maintaining performances over time and keeping the optimal contact angle between ball and trackAdjusting Locking with Micro Setting Tech: For an accurate adjustment of the hub that prevents the creation of any play21 Spokes in Stainless Steel with Mega-G3 System: Ensures extremely good stiffness and reactivity, reinforcement on the braking side at the front and cassette side at the rear. It gives a very race design to the wheelsetFront Hub: Quick Release width 100mmRear Hub: Quick Release axle width 135mmWeight: 1.675kgTechnologies:MoMag™ A technology that offers several advantages to the structural integrity of the wheel as well as eliminating the need for rim tape. The name derives from “Mounting Magnet” system, shortened to MoMag™.RDB - Rim Dynamic Balance: The concept is simple and elegant, balance the weight of the gasket with an item of similar weight placed on the exact opposite side.Buy Campagnolo Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
The Campagnolo Zonda Disc Brake Wheelset features new asymmetric rim profiles with a milled rim making it possible to reduce the peripheral weight of the rim and make the wheel extremely reactive. Campagnolo also use MoMag technology to produce a uniform rim that does not require rim tape and allow the wheel to run higher spoke tension causing greater stiffness and a more reactive wheel. The Campagnolo Zonda Disc Brake Wheelset features 21 stainless steel spokes with the Mega-G3 geometry to reinforce the braking side at the front and cassette side at the rear whilst producing extremely good stiffness and reactivity of the wheel. Wherever you're riding, the Campagnolo Zonda Disc Brake Wheelset are a serious upgrade that can get you there quicker and safer.
Campagnolo Shamal Ultra C17 2-Way Front Road WheelThe new Shamal Ultra C17 2-Way-Fit continues the legendary performance this model has held for over 20 years. It's the first top for many top-end competitive cyclists in all areas of the sport. This version pushes performance further thanks to the increase in design and technology Campagnolo is known for, which includes the perfect integration of being Tubeless Compatible. The tubeless setup makes the wheel inertia and rolling resistance much lower while increasing grip and traction significantly; this is the future of road racing.Optimised Rim ProfileThis version of the Shamal Ultra features the new C17 rim profile to ensure a better rim to tyre interface, which in turn improves performance. This performance boost is especially noticeable when using 25 and 28c road tyres - the modern standard. To maintain this wheel exceptional reactivity and momentum it has been equipped with USB Ceramic, sealed cartridge bearing, which although reducing weight, also greatly improve rolling performance and smoothness. Ceramic ball bearings have a high corrosion resistance, meaning wheel maintenance is rarely required.Podium Proven PerformanceThis wheel features the Campagnolo iconic, performance enhancing Mega-G3 spoke lacing pattern. This spoke pattern improves energy between the rider and the road, which reduces stresses on the drive side (right side) of the wheel while increasing the rigidity of the wheel overall at the same time. This significant performance enhancement is achieved by the drive side of the rear wheels having twice as many spokes as the non-drive side (left side).Hand Built and Fine-TunedCampagnolo wheels are hand built entirely by specialist Campagnolo wheel builders and are fine-tuned and checked precisely with electronic tools. The ensures that every wheel delivers the high-performance output that Campagnolo wheels are known for.Features: Material: Rim: Aluminium; Hub: Carbon, Aluminium Rim Internal Width: 17mm Rim External Width: 22mm Rim Profile: Differentiated, 24/27mm Hub Spacing: 100mm Spoke Count: 16 Spoke Lacing: G3 Bearings: USB, Cup and ConeBuy Campagnolo Wheels & Tyres from Chain Reaction Cycles. Ride. Eat. Sleep. Repeat.
Trail riding is all about adventures thrills and fun. Exploring wild places and flowy trails. To get the most out of your ride you need to have confidence in your gear. This is especially true with your wheels which play a critical role in the overall ride experience. That’s where the new Crossmax XL comes in. It represents the highest quality aluminum trail wheel we’ve ever built.The rims are made with our patented Fore technology which features a fully sealed upper bridge that eliminates the need for rim tape. That saves 30 grams per wheel and does away with the hassle of using tape to set up tubeless tires. The rim has a 30mm internal width perfect for optimizing the performance of any modern trail tire. It’s engineered with a super strong triangular shape designed specifically to absorb impacts from the trail. Our Black Shield technology gives them a distinctive finish that protects against scratches and abrasions.We use 24 straight-pull spokes to further dial in the sweet spot between lateral stiffness and vertical compliance. The Infinity hubs feature a stiffer and lighter construction that’s enhanced by the ultra-reliable ID360 double ratchet system for fast engagement. The wheelset is set up for 6-bolt or center lock disc mounts and is compatible with Shimano HG9 SRAM XD and Micro Spline freewheel bodies. It’s available in 29” and ships with UST tubeless valves spare spokes and accessories. Key benefits Versatile dynamic trail riding performance Wide strong rim profile with Black Shield treatment protects your rim against impacts and scratches. New lighter stiffer Infinity hubs with ultra-reliable ID360 freewheel system for instant acceleration. More confidence and control on rugged terrain 30mm wide rim is optimized for lower tire pressure giving you a smoother ride with more traction and control. Triangular rim shape absorbs heavy impacts so you're free to bomb the descents. Most user-friendly tubeless system Fore technology fully sealed rim with no rim tape makes it easy to mount and change tubeless tires. Leaving the upper rim bridge intact boosts the stiffness and the durability of the rim. Rims Material: Maxtal Tire: UST Tubeless and tubetype Material: S6000 Aluminum SUP welding technology Fore tapeless tubeless technology Internal width: 30 mm Black Shield treatment (protects your rim against impacts and scratches) ETRTO size 29: 622x30TC Asymmetrical rim design Spokes Count: 24 front and rear Nipples: Fore integrated aluminum Material: steel Shape: straight pull flat double butted Lacing: front and rear crossed 2 contactless Lacing: front radial rear crossed 2 contactless Delivered with UST valve and accessories Multifonction adjustment wrench (delivered with rear wheel) 2 replacement spokes with each wheel Hubs Instant Drive 360 freewheel technology Hub available for 6-bolt or Center Lock® brake rotors Axles: Front 15X110 Boost ; Rear 12X148 Boost Infinity hubs Intended use ASTM CATEGORY 4 : ENDURO AND TRAIL RIDING Recommended tire sizes: 60mm to 76mm (235 to 30) For a longer longevity of the wheel Mavic recommends that the total weight supported by the wheels doesn't exceed 150kg bike included Minimum and maximum allowed tyre width: see indication on wheel Maximum tyre pressure: 295bar/43PSI with a 52mm tyre - 155bar/22PSI with a 125mm tyre Versions Disc standard : 6 Bolts or Center Lock® Hub width : Boost only (front 110 rear 148) Freewheel: SRAM XD Shimano HG9 Shimano Micro-Spline Compatible Adapters and freewheel bodies ID360 Shimano HG9 alloy freewheel body (V3780101) ID360 Sram XD freewheel body (V3740101) 15mm front hub cap (V2372501 - Delivered with the wheel) Boost : Torque Caps for Center Lock hub (V2374401) ID360 Shimano Micro Spline alloy freewheel body (V3990101) Compatibility Freewheel: Shimano HG9 XD or Micro Spline Rear axle: 12x148 Boost thru axle Front axle: 15x110 Boost thru axle 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
The name Crossmax has a long history in the world of XC riding and racing and the new Crossmax SL lives up to that legacy. It offers many of our proven Mavic technologies at an attainable price. Weighing just 1700g it’s a true all-rounder and the best alloy XC wheel in its category.The rims are made with our patented Fore technology featuring a fully sealed upper rim bridge that eliminates the need for rim tape. That saves 30 grams per wheel not to mention the hassle of using tape to set up tubeless tires. The rim has a 25mm internal width with a durable hookless profile and our Black Shield technology gives them a distinctive modern look that protects against scratches and abrasions.We use 24 straight-pull spokes (same spoke length throughout) for a strong connection between the rim and hub and a perfect balance between efficiency and durability. Special machining on the hub ensures that the spoke head is secured but can still travel in the slot. This allows the wheel to absorb impacts from trail obstacles. Our Instant Drive 360 freewheel coupled with QRM Auto bearing technology provides fast engagement and added durability. The Crossmax SL 29 is compatible with Shimano HG9 Micro Spline and SRAM XD driver bodies. It’s available with 6-bolt or center lock brake rotors in 29” only and is compatible with a 15x110 front axle and 12x148 rear. It comes with valves replacement spokes and accessories. Key benefits Faster accelerating and climbing capabilities Fore technology sealed rim design minimizes weight and increases strength. Eliminating rim tape saves 30g per rim. Ultra-reliable ID360 freewheel system for instant engagement. Increased traction and durability 25mm wide hookless rim profile optimized for lower tire pressures resulting in improved grip in all conditions. Optimized for modern XC tubeless tires from 2.1 to 2.30'. Black Shield treatment protects rims against impacts and scratches. Most user-friendly tubeless system Fore technology fully sealed rim with no rim tape makes it easy to mount and change tubeless tires. Leaving the upper rim bridge intact boosts the stiffness and durability of the rim. Rims Material: Maxtal Tire: UST Tubeless and tubetype Material: S6000 Aluminum SUP welding technology Fore tapeless tubeless technology ETRTO size 29: 622x25TSS Internal width: 25 mm Hookless profile Black Shield treatment (protects your rim against impacts and scratches) Asymmetrical rim design Spokes Count: 24 front and rear Nipples: Fore integrated aluminum Material: steel Shape: straight pull flat double butted Lacing: front and rear crossed 2 contactless Delivered with UST valve and accessories Multifonction adjustment wrench (delivered with rear wheel) 2 replacement spokes with each wheel Hubs Instant Drive 360 freewheel technology Hub available for 6-bolt or Center Lock® brake rotors Axles: Front 15X110 Boost ; Rear 12X148 Boost Infinity hubs Intended use Recommended tire sizes: 52mm to 76mm (20 to 30) ASTM CATEGORY 3 : CROSS COUNTRY For a longer longevity of the wheel Mavic recommends that the total weight supported by the wheels doesn't exceed 150kg bike included Minimum and maximum allowed tyre width: see indication on wheel Maximum tyre pressure: 41bar/59PSI with a 28mm tyre - 245bar/36PSI with a 64mm tyre Versions Disc standard : 6 Bolts or Center Lock® Hub width : Boost only (front 110 rear 148) Freewheel: SRAM XD Shimano HG9 Shimano Micro-Spline Compatible Adapters and freewheel bodies ID360 Shimano HG9 alloy freewheel body (V3780101) ID360 Sram XD freewheel body (V3740101) 15mm front hub cap (V2372501 - Delivered with the wheel) Boost : Torque Caps for Center Lock hub (V2374401) ID360 Shimano Micro Spline alloy freewheel body (V3990101) Compatibility Freewheel: Shimano HG9 XD or Micro Spline Rear axle: 12x148 Boost thru axle Front axle: 15x110 Boost thru axle 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