29-Inch

Proterra Tough i30 wheels keep the trail in check while everything else blurs by in the periphery. Reinforced by our proven Dual I-Beam support, Proterra Tough rims feature a 30mm internal width to provide higher tire volume while also increasing sidewall support at lower pressures. High-quality EZO sealed bearings are designed to endure through seasons of aggressive riding, while a responsive 6-pawl freehub provides the snappy 3.7 degrees of engagement you demand when cranking out of corners. Choose Proterra Tough when you need a wheel that won't let you down. - 30mm inner rim width with 32 spokes laced in a 3-cross pattern - 6069 aluminum alloy rim is TCS 2.0 tubeless-ready - Sapim Secure Lock 14-gauge brass nipples provide bomber durability, while double butted 2.0/1.8/2.0mm J-bend spokes make replacement a breeze. - Tubeless tape, Solid Strip, and black alloy valves are preinstalled, making the wheels ready for tubeless tires the moment they arrive on your doorstep. The TCS 2.0 Solid Strip is a durable strip that lies beneath the tape, prevents it from sagging at the spoke holes, makes it easier to mount a tire, and protects from puncture in the case of a broken spoke. - 6-bolt rotor mounts - Top-tier EZO sealed bearings

Tailored to the needs of performance orientated cross-country riders, the XRC 1501 SPLINE ONE leaves nothing to be desired. Lightweight 30 mm wide carbon rims offer ideal support for modern XC tires. Rolling on race proven and super durable 240 hubs and Competition Race spokes, allowing every bit of energy to be transferred into forward motion. - Designed for Cross Country applications - Carbon rim with 30mm internal width - 240 hub - Competition race spokes and Squorx nipples

After a long climb, the perfect trail lies ahead of your tires: flowy, dusty, varied, endless. Nothing holds you back from entering the All-Mountain thrills with the M 1900 Spline wheels. A rim developed with optimal balance of durability and weight offers efficient climbing characteristics as well as dent resistance on single trails. With experienced wheel building by hand, this wheel is a reliable partner to collect freewheeling moments in the mountains. - Intended use = XC and All-Mountain/Trail - Tubeless ready, 30mm wide and light rim - Straight-pull hubs/spokes built with a 3-cross pattern - Includes Tubeless Valve and Tape, 6-bolt adapter with lockring

The 350/XM421 front wheel features a DT350 straight pull, front boost Center-Lock disc hub, built with Champion spokes to a 28 hole 29" DT XM421 rim.

A carbon structure optimized for impact resistance, a reinforced flange and the ideal resin-carbon fiber ratio make the EXC 1200 Spline the benchmark in the Enduro sector. The rim's inherent strength allows the use of extremely lightweight Aerocomp and Aerolite spokes and generates optimum wheel stiffness. The heart of this wheel is a 180 Straight Pull hub with smooth-running SINC Ceramic bearings and the newest Ratchet EXP freehub system. - Requirement-specific carbon rims are designed for the ultimate enduro riding experience - The carbon rim combined with the DT Aerolite and DT Aero Comp spokes ensure perfect wheel stiffness - The low weight of the 1200 Spline reduces the moment of inertia and increases acceleration, leading to higher average speeds compared with aluminum wheels with the same energy input - 180 straightpull hub is a lighter, stiffer, and more durable hub - SINC ceramic hub bearings are engineered with optimum bearing clearance for minimum friction - Wheels are tubeless ready, with a rim design that ensures a precise and safe fit of the tire even when ridden hard - Nipples have DT Pro Lock to prevent the spoke-nipple connection from loosening - 3 cross spoke pattern, DT ProLock Squorx ProHead aluminum spoke nipples

The XMC 1200 Spline is the ultimate all mountain wheel. A carbon layup specifically tuned for all mountain use makes the rim tough yet super-light. The hubs feature the latest incarnation of DT's Ratchet System. Extremely refined machining and fully lasered graphics make them the lightest hubs DT Swiss has ever made. Together with bladed top-end spokes and perfect DT Swiss build quality, this wheel is made to ride trails with speed and confidence. - Requirement-specific carbon rims are designed for the ultimate all-mountain riding experience - The carbon rim combined with the DT Aerolite and DT Aero Comp spokes ensure perfect wheel stiffness - The low weight of the 1200 Spline reduces the moment of inertia and increases acceleration, leading to higher average speeds compared with aluminum wheels with the same energy input - 180 straightpull hub is a lighter, stiffer, and more durable hub - Alloy presta valve is lightweight - Wheels are tubeless ready, with a rim design that ensures a precise and safe fit of the tire even when ridden hard - Nipples have DT Pro Lock to prevent the spoke-nipple connection from loosening - 3 cross spoke pattern, DT AeroComp straight pull spokes, DT ProLock Squorx ProHead aluminum spoke nipples

The Traverse Alloy rim geometry is optimized for strength, crafted with our most durable alloy, and laced to DT 350 hubs with stout Sapim spokes and Sapim alloy nipples. What does it all add up to? A wheelset that hits harder, holds up longer, and inspires you to go bigger and farther than any other trail wheel out there. ENGINEERED RIM The engineered rim shape emphasizes the durability and strength of alloy; creating our most durable alloy wheel we have ever made. 6013 ALLOY New 6013 alloy material finished with shot peening for impact strength and fatigue strength. OFFSET ADVANTAGE Engineered rim offset enables balanced spoke tension for improved fatigue life to keep you rolling. RIDE QUALITY Ride quality and impact targets derived from our factory enduro team riders. INTERNAL RIM 30mm internal rim width optimizes tire shape for the best traction. ENGINEERED SHAPE Engineered bead shape ensures the bead bends inward for air pressure /tire retention under impact, so you can always finish your ride. WEIGHT 1900g (with valve and tape). SPOKE COUNT F/R 28H Front and Rear HUB DT 350 Star Ratchet HUB ENGAGEMENT 36 Teeth / 10 Degrees INTERNALLY CANTED Internally canted bead shape ensures the bead bends inward for air pressure /tire retention under impact. INTENDED USE Trail, Park, Enduro WEIGHT (29) 1,904g (with valve and tape) WHEEL SIZES 29 (F/R) 27.5 (R) FOR LIFE Lifetime warranty on Roval Wheels when registered within the first 90 days of purchase. 2 YEAR If you damage your Roval product while riding within the first two years of ownership and it's not covered under warranty, we'll still replace or repair. USA Only and wheels must be registered. STRUCTURAL WEIGHT LIMIT (Rider & Cargo) - 125kg / 275lbs

The Traverse Alloy rim geometry is optimized for strength, crafted with our most durable alloy, and laced to DT 350 hubs with stout Sapim spokes and Sapim alloy nipples. What does it all add up to? A wheelset that hits harder, holds up longer, and inspires you to go bigger and farther than any other trail wheel out there. ENGINEERED RIM The engineered rim shape emphasizes the durability and strength of alloy; creating our most durable alloy wheel we have ever made. 6013 ALLOY New 6013 alloy material finished with shot peening for impact strength and fatigue strength. OFFSET ADVANTAGE Engineered rim offset enables balanced spoke tension for improved fatigue life to keep you rolling. RIDE QUALITY Ride quality and impact targets derived from our factory enduro team riders. INTERNAL RIM 30mm internal rim width optimizes tire shape for the best traction. ENGINEERED SHAPE Engineered bead shape ensures the bead bends inward for air pressure /tire retention under impact, so you can always finish your ride. WEIGHT 1900g (with valve and tape). SPOKE COUNT F/R 28H Front and Rear HUB DT 350 Star Ratchet HUB ENGAGEMENT 36 Teeth / 10 Degrees INTERNALLY CANTED Internally canted bead shape ensures the bead bends inward for air pressure /tire retention under impact. INTENDED USE Trail, Park, Enduro WEIGHT (29) 1,904g (with valve and tape) WHEEL SIZES 29 (F/R) 27.5 (R) FOR LIFE Lifetime warranty on Roval Wheels when registered within the first 90 days of purchase. 2 YEAR If you damage your Roval product while riding within the first two years of ownership and it's not covered under warranty, we'll still replace or repair. USA Only and wheels must be registered. STRUCTURAL WEIGHT LIMIT (Rider & Cargo) - 125kg / 275lbs

SURVIVAL OF THE STRONGEST More Than the Strongest Carbon Wheelset In Our Known Universe, Traverse HDs deliver unbeatable control and pinch-flat resistance in severe terrain, unlocking progression in the bike park, on a trail ride, or on an Enduro World Series track. STRONG LIKE BULL (NO BULL) Our strongest off-set rim shape molded with optimized carbon fibers for front and rear specific characteristics, add up to our strongest carbon trail wheels we have ever made. SMOOTH AND STRONG Front layup delivers a smooth, control-enhancing ride, while the rear optimizes stiffness & impact strength. HIGH PRECISION HANDLING The fusion of control and durability; where stiffness meets grip, HD glues you to your line and snaps you to the next with precision and speed. SAYONARA PINCH FLATS Optimized "Flat Top" bead profile requires 85% more force to pinch flat compared to a standard round bead, virtually eliminating "snake bites." AIR TIME Thank our genius engineer, Chuck Teixeira, for inventing the the "AirChuck;" a valve that threads directly into the rim eliminating compression nuts, air loss from rim flex, makes tire set-up easier, and reduces sealant clogs. INTENDED USE Aggressive Trail, Park, Enduro WEIGHT (29): 1,706g 240 EXP (with valve and tape) WHEEL SIZES 29 (F/R) 27.5 (R) FOR LIFE Lifetime warranty on Roval Wheels when registered within the first 90 days of purchase. 2 YEAR "It Happens" No Fault Crash Replacement - If you damage your Roval product while riding within the first two years of ownership and it's not covered under warranty, we'll still replace or repair. USA Only and wheels must be registered. STRUCTURAL WEIGHT LIMIT (Rider & Cargo) - 125kg / 275lbs

Fastest XC Wheels In the Real World 1240 grams is an obscenely light weight when talking about mountain bike wheelsets, the kind of weight that XC racers dream about. But light weight alone is no longer enough. So, we engineered the new Control SL wheels to be sharp handling, smooth riding, extra durable, and 22% less likely to pinch-flat your tires, in addition to being some of the lightest weight production wheels on the planet. - Bearing Type: SiNC Ceramic Sealed cartridge - System Weight Limit: 275lbs / 125kg - Total Wheelset Weight: 1240g

What It Is The definitive mountain wheel. The M6 Series defines the modern and varied interpretation of the mountain bike. Loaded with traction and acceleration on the climb, it's also backed with precision and control while absorbing vibrations and impacts on the descent. The M6 Series is designed in two diameters and three widths to ensure your sophisticated preference for tire size and pressure is met with an uncompromising tire-to-rim interface. Who It's For The mountain biker who wonders what is possible, the skeptic afraid of "plastic" wheels, the weight weenie, the Clydesdale, the high-mileage guy, the weekend warrior. It would be easier to describe who it is not for… Why We Made It ENVE showed the world that a mountain bike wheel could be carbon — we're still immensely proud of that achievement. A mountain bike wheel, however, can be so much more. The M6 Series is not about technical challenges, and we refuse to chase specifications in order to be the widest, tallest, or stiffest. For the M6 Series of wheels, the question was not about carbon, rather, "What is the potential of a mountain bike wheel?" Each M6 Series wheel model is designed for the broad range of tire widths, hub configurations, and sizes so that you, the modern trail rider, can choose between them.

ENVE AM30 Carbon Wheelsets use a 30mm inside width rim that is tuned for compliance and damping for performance on All-Mountain, Enduro, and Trail riders. - 30mm internal rim width - Gravity rated impact strength - Rim shape tuned for compliance and damping - Wide Hookless Bead Anti-pinch flat technology

- Light enough to take XC racing but was born from research and testing on the Enduro World Series circuit, making it a great rim for anyone looking to improve both descending and climbing - Asymmetric rim design allows for a stronger wheel while offering the easy inflation and Stan's trademark unmatched airtight seal. - 28mm internal width ideal for 2.2-2.5" tires - Light and durable 6069 aluminum with welded joint and reinforced spoke bed

- Light enough to take XC racing but was born from research and testing on the Enduro World Series circuit, making it a great rim for anyone looking to improve both descending and climbing - Asymmetric rim design allows for a stronger wheel while offering the easy inflation and Stan's trademark unmatched airtight seal. - 28mm internal width ideal for 2.2-2.5" tires - Light and durable 6069 aluminum with welded joint and reinforced spoke bed

- Low-profile 30mm internal width optimizes tire shape, traction, and control for 2.3-2.6" tires - Durable 6069 aluminum with welded joint and reinforced spoke bed - BST Asymmetric design combines Stan's legendary easy tubeless inflation with a stronger, more balanced wheel build - Reinforced spoke bed, combined with the offset drilling of the asym design, builds into an incredibly durable wheel that brings added confidence to every ride.

Born on the World Cup, destined for your local trails. We poured World Championship-winning engineering into developing an all-new alloy for these Control wheels. To increase the new material's durability, we customized our shot peening process—where metal projectiles are shot at the alloy to increase its strength—meeting the precise demands of our XC riders. If that wasn't enough, to eliminate creaking and reduce weight, individually customized sleeves are chosen to bond every single rim. The result is a wildly over-engineered, trail-ripping, best-of-the-best, aluminum wheel; held to the same standards as our highest-end Control SL carbon components. Whether you are looking for a solid set of training wheels that will handle it all or a big upgrade from entry-level wheels, Roval Control Alloy is the go-to wheel. With creak-free hoop construction that's laced to high-performance and proven DT Swiss hubs, you can tap into a wheelset born from World Cup technology that's ready for all riders. - Rim: Control Alloy Asymmetric, 6013 Alloy Shot-Pened, 29", Disc Brake, Zero Bead Hook Design, Tubeless Compatible, Compatible with Tire Inserts - Rim Details: 19mm Depth, 31mm External Width, 27mm Internal Width - Hub: DT Swiss 350 Straight-pull 6-bolt, Star Ratchet 36t internals (10 degs), 110x15mm & 148x12mm, Sram XD Freehub (Convertible freehub ) - Bearing Type: DT Swiss Sealed Steel Cartridge Bearings - Spokes: Sapim D-Light Straightpull, Front: Two-cross (1:1) 28 count, R: 304mm, L: 304mm - Rear: Two-cross (1:1) 28 count, DS: 304mm NDS: 304mm - Nipple: Sapim Secure Lock Double Square Alloy Blk, 2.0 x 18mm, 16cNm - Tire Size: 1.9" - 2.6" - Max Pressure: 1.9"-2.3": 40psi, 2.35"-2.5": 35psi, 2.51" -2.6": 30psi - Weight: Wheelset 1,648g, Front 768g, Rear 880g (excluding 15g, tubeless rim tape, and tubeless valve) - Assembly Method: Hand-built - Extras: Roval Tubeless Rim Tape and Tubeless Valve, Spare Spoke & Nipple Kit, 19 and 31mm OD Endcaps, Lifetime Warranty System Weight Limit: 275lbs / 125kg

Control and stability for enduro riding. Details - Wheels sold individually not in sets. - Tuned Front and Rear Alloy Wheel System for enduro riding and racing. - Front- and rear-specific wheels tuned and optimized to address the specific performance requirements and loads of mountain bike riding. - Compliant tuned front wheel improves handling and maximizes grip and control in turns. Wider inner rim width supports wider tire profile in front, increased volume and contact patch, and rounds tire profile to enhance turning. - Stiff tuned rear wheel supports peak loads and enhances stability and tracking at speed. Narrower inner rim width supports narrower tire profile in rear, improves rolling resistance, and sharpens tire edge for grip. - Welded and sleeved rim joint for additional strength.

SURVIVAL OF THE STRONGEST More Than the Strongest Carbon Wheelset In Our Known Universe, Traverse HDs deliver unbeatable control and pinch-flat resistance in severe terrain, unlocking progression in the bike park, on a trail ride, or on an Enduro World Series track. STRONG LIKE BULL (NO BULL) Our strongest off-set rim shape molded with optimized carbon fibers for front and rear specific characteristics, add up to our strongest carbon trail wheels we have ever made. SMOOTH AND STRONG Front layup delivers a smooth, control-enhancing ride, while the rear optimizes stiffness & impact strength. HIGH PRECISION HANDLING The fusion of control and durability; where stiffness meets grip, HD glues you to your line and snaps you to the next with precision and speed. SAYONARA PINCH FLATS Optimized "Flat Top" bead profile requires 85% more force to pinch flat compared to a standard round bead, virtually eliminating "snake bites." AIR TIME Thank our genius engineer, Chuck Teixeira, for inventing the the "AirChuck;" a valve that threads directly into the rim eliminating compression nuts, air loss from rim flex, makes tire set-up easier, and reduces sealant clogs. INTENDED USE Aggressive Trail, Park, Enduro WEIGHT (29): 1,706g 240 EXP (with valve and tape) WHEEL SIZES 29 (F/R) 27.5 (R) FOR LIFE Lifetime warranty on Roval Wheels when registered within the first 90 days of purchase. 2 YEAR "It Happens" No Fault Crash Replacement - If you damage your Roval product while riding within the first two years of ownership and it's not covered under warranty, we'll still replace or repair. USA Only and wheels must be registered. STRUCTURAL WEIGHT LIMIT (Rider & Cargo) - 125kg / 275lbs

SURVIVAL OF THE STRONGEST More Than the Strongest Carbon Wheelset In Our Known Universe, Traverse HDs deliver unbeatable control and pinch-flat resistance in severe terrain, unlocking progression in the bike park, on a trail ride, or on an Enduro World Series track. STRONG LIKE BULL (NO BULL) Our strongest off-set rim shape molded with optimized carbon fibers for front and rear specific characteristics, add up to our strongest carbon trail wheels we have ever made. SMOOTH AND STRONG Front layup delivers a smooth, control-enhancing ride, while the rear optimizes stiffness & impact strength. HIGH PRECISION HANDLING The fusion of control and durability; where stiffness meets grip, HD glues you to your line and snaps you to the next with precision and speed. SAYONARA PINCH FLATS Optimized "Flat Top" bead profile requires 85% more force to pinch flat compared to a standard round bead, virtually eliminating "snake bites." AIR TIME Thank our genius engineer, Chuck Teixeira, for inventing the the "AirChuck;" a valve that threads directly into the rim eliminating compression nuts, air loss from rim flex, makes tire set-up easier, and reduces sealant clogs. INTENDED USE Aggressive Trail, Park, Enduro WEIGHT (29): 1,706g 240 EXP (with valve and tape) WHEEL SIZES 29 (F/R) 27.5 (R) FOR LIFE Lifetime warranty on Roval Wheels when registered within the first 90 days of purchase. 2 YEAR "It Happens" No Fault Crash Replacement - If you damage your Roval product while riding within the first two years of ownership and it's not covered under warranty, we'll still replace or repair. USA Only and wheels must be registered. STRUCTURAL WEIGHT LIMIT (Rider & Cargo) - 125kg / 275lbs

- Designed, tested, and raced to victories on the World Cup DH and Enduro World Series circuits - Tie beam triple-cavity rim design resists damage and prevents air loss under impacts - 29mm internal width optimized for 2.35" to 2.8" Trail, All-mountain, and DH tires - E-sync hubs Specs: - Wheel Tire Type: Tubeless Ready - Wheel-Brake Comp.: Disc IS 6-bolt - Rim Material: Aluminum - Spoke Type: Sapim D-Light - Valve: Presta - Rim Construction: Double wall

EXC 1501 SPLINE ONE combines everything a modern enduro rider wants in a wheel. The 30 mm wide carbon rim gives you the precision to stay on track even on the trickiest lines while a 240 hub keeps it spinning. Both components are held together by performance weight optimized competition race straightpull spokes. - Designed for Enduro applications - Carbon rim with 30mm internal width - 240 hub - Competition race spokes and Squorx nipples

Reserve 30 wheels feature a 30mm internal width that supports 2.3-2.5" tires, and the thick rim beads stand up to the abuse of tough, rocky, steep tracks ridden at elite speed. While DH rims see greater single impacts, nothing beats the full weekend of regular abuse that an EWS race dishes out. To say nothing of the infamous 'Anti-Grip' and the rocks buried within the moondust in the Andes of Chile. - Designed for DH riding and racing - Carbon fiber construction with 4mm asymmetric offset - Reinforced rim bed for impact resistance - Rated for e-bike use - Ships with rim tape installed, tubeless-ready valves, and cards identifying the builder of each of your wheels - Backed by a lifetime warranty

The XMC 1501 SPLINE ONE was designed for all kinds of mountain adventures. A 30 mm tubeless optimized carbon rim easily supports wider tires, while the double butted competition race spokes and 240 hub completes this durable and versatile wheel. - Designed for All Mountain applications - Carbon rim with 30mm internal width - 240 hub - Competition race spokes and Squorx nipples

Snappy acceleration is what you can expect from this aluminum wheel developed to meet all cross country needs. If, to you, cross country means high-speed, after-work rides, and the occasional endurance race, then you should have a closer look at the XR 1700 SPLINE wheels. With a light and welded cross country aluminum rims, reliable 36T RATCHET SL hubs, and Swiss precision finish, all the way from the competition spokes to the signature DT Swiss wheel build quality, it's a wheelset that is up to competing, day-in, day-out, against yourself, against your buddies, or in an all-out race.

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 aluminum rim, available in two inner widths. - Aluminum rim, Hooked / Crotchet tubeless ready - DT Hybrid 1 spokes are reinforced and increase the lateral and torsional stiffness of the wheel - 370 Hub - Includes Tubeless Valve and Tape, 6-bolt adapter with lockring

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 aluminum rim, available in two inner widths. - Aluminum rim, Hooked / Crotchet tubeless ready - DT Hybrid 1 spokes are reinforced and increase the lateral and torsional stiffness of the wheel - 370 Hub - Includes Tubeless Valve and Tape, 6-bolt adapter with lockring

Featuring the new generation Ratchet System hubs that are lighter and faster than ever before, along with bladed spokes and the superb wheel build quality and reliability you expect from DT Swiss, the XRC 1200 SPLINE 25 is a race-bred trail machine that loves to go fast. It accelerates like nothing else, tracks like nothing else, and is reliable like nothing else. It is the benchmark for high speeds on any trail, on any gravel road, and in any race — whether that race takes place between the tape or in your head. - SRAM XD MTB cassette-compatible

Let’s face it, modern downhill tracks are not for the faint of heart. From the moment you drop in, it’s a hari cari mix of boulders, roots, bumps and jumps awaiting you, and literally the only thing keeping you upright and connecting you to the ground is your wheels. It’s serious business, and the abuse of a day riding DH is no joke, but the Reserve 31 DH wheels have your back. - Designed for DH riding and racing - Carbon fiber construction with 5mm asymmetric offset - Reinforced rim bed for impact resistance - Rated for e-bike use - Ships with rim tape installed, tubeless-ready valves, and cards identifying the builder of each of your wheels - Backed by a lifetime warranty

Quality Wheels Value Series Disc Front Wheel 29 SRAM 406 6-bolt / Sun SR25 Black

Proterra Tough i30 wheels keep the trail in check while everything else blurs by in the periphery. Reinforced by our proven Dual I-Beam support, Proterra Tough rims feature a 30mm internal width to provide higher tire volume while also increasing sidewall support at lower pressures. High-quality EZO sealed bearings are designed to endure through seasons of aggressive riding, while a responsive 6-pawl freehub provides the snappy 3.7 degrees of engagement you demand when cranking out of corners. Choose Proterra Tough when you need a wheel that won't let you down. - 30mm inner rim width with 32 spokes laced in a 3-cross pattern - 6069 aluminum alloy rim is TCS 2.0 tubeless-ready - Sapim Secure Lock 14-gauge brass nipples provide bomber durability, while double butted 2.0/1.8/2.0mm J-bend spokes make replacement a breeze. - Tubeless tape, Solid Strip, and black alloy valves are preinstalled, making the wheels ready for tubeless tires the moment they arrive on your doorstep. The TCS 2.0 Solid Strip is a durable strip that lies beneath the tape, prevents it from sagging at the spoke holes, makes it easier to mount a tire, and protects from puncture in the case of a broken spoke. - 6-bolt rotor mounts - Top-tier EZO sealed bearings