Hubs

- Replacement pawls and springs for DJD Bush Drive rear are for original DJD or DJD-Bush Drive rear hub - Replacement pawls and springs for Spin Doctor 6-Drive are compatible with all 6-Drive hubs - Replacement pawls and springs for Supa Drive are compatible with all Supa Drive hubs - Spin Doctor, Spin Doctor Pro and Spin Doctor 6-Drive parts are generally not cross compatible - DJD and DJD-BD parts are generally not cross compatible

The number to count on—240 with Ratchet EXP. The new 240 is developed for riders with the most extreme ambitions. The latest version of the hub is equipped with the Ratchet EXP system to maximize reliability. The increased bearing distance increases bearing lifetime, the straight spring provides more direct engagement (which reduces wear), and a smaller number of parts not only makes maintenance easier, but also reduces weight.

Direct power transmission in every riding situation—240 with Ratchet EXP. With the latest generation of the 240 hubs, the strengths have been further enhanced. The latest Ratchet EXP freehub system increases the bearing lifetime thanks to the increased bearing distance. The new version of the end caps simplifies tool-free disassembly and makes maintenance easier. The hollow-machined ratchets transfer your energy directly into acceleration thanks to the 36 teeth.

Whether the goal is a finish line, epic adventure or simply getting back home again, SRAM'S 900 hubs are ready for the challenge. On the inside, the smooth and durable DOUBLE TIME drive mechanism ensures rapid engagement for quick and confident pedal responsiveness. SPEEDBALL bearings provide smooth, long-lasting rotation performance. Multiple spoke-count and cassette-capability options, as well as interchangeable end caps, make the 900 hubs a perfect choice for any disc-equipped road, gravel, cyclocross, cross country, trail, or enduro bike. - Versatile driver body can accept ROAD or MTB drivetrain, full spline or XD cassettes - Fully convertible with tool-free end caps - BOOST variants - 24, 28 or 32 spoke holes

Industry Nine Hydra Classic mountain hubs are loaded with features every rider will appreciate such as revolutionary 0.52° engagement, generously low weights and an intuitive layout that can be serviced without any proprietary tools. - From turning and milling bar stock 7075-T6 aluminum for shells, axles and encaps, wire EDM cutting A2 tool steel for pawls and driverings, to in-house anodization lab, every step of design, engineering, manufacturing and assembly is done to exacting standards in Asheville, NC - 690 P.O.E. Hydra Freehub body engages every .52 degrees yeilding telepathic control - Classic j-bend spoke interface - Steel cartridge bearings are durable - Easily serviced with no proprietary tools; Designed to keep you in the saddle and out of the service queue

Industry Nine Hydra Classic hubs are the heart of your wheelset, everything revolves around them, literally. Every Classic Hydra hub is made start to finish in Asheville, NC. From turning and milling bar stock 7075-T6 aluminum for shells, axles and encaps, wire EDM cutting A2 tool steel for pawls and driverings, to in-house anodization lab, every step of design, engineering, manufacturing and assembly is done to exacting standards. - 690 P.O.E. Hydra Freehub body engages every .52 degrees yeilding telepathic control - 6 pawl, 6 phase - 115 tooth drivering - Easily serviced with no proprietary tools. Designed to keep you in the saddle and out of the service queue - Classic j-bend spoke interface - Steel cartridge bearings are durable

The Boost 6-Bolt front is specifically for "Boost" disc spacing forks with 110x15mm "Boost" axles. Using the larger diameter hubshell bearing the Boost 6-Bolt is designed to tackle rough terrain and aggressive riding such as downhill and enduro. In an evolving landscape of axle specifications, we are confident that the "Boost" disc location is here to stay. Chris King Boost 6-Bolt front hubs are designed as precision mountain tools. We use one-piece axles to provide a stiff hub with rail accurate steering, transferring every minute adjustment you make to the trail. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and snaprings, that provide superior protection with ultra low drag. Our bearings, available in steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously, with tools of equal wear to ensure perfectly matched inner and outer races. The quality and speed of our bearings is what sets us apart from the competition and they are what you will feel and notice on every single ride. As Chris King bearing tracks burnish they get faster with age and all our hubs and bearings are fully serviceable for years upon years of demanding use. - Steel Bearings - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Wide flange placement - Fits 110x15mm Boost axles - Legendary made-in-house LD bearings - Easily serviceable with a 2.5mm hex and pick or pen knife - Completely re-buildable with our Universal Hub Service Tool - Responsibly lightweight - Ceramic bearing upgrade available - Available in 28, and 32 hole spoke count

Industry Nine Hydra Classic hubs are the heart of your wheelset, everything revolves around them, literally. Every Classic Hydra hub is made start to finish in Asheville, NC. From turning and milling bar stock 7075-T6 aluminum for shells, axles and encaps, wire EDM cutting A2 tool steel for pawls and driverings, to in-house anodization lab, every step of design, engineering, manufacturing and assembly is done to exacting standards. - 690 P.O.E. Hydra Freehub body engages every .52 degrees yeilding telepathic control - 6 pawl, 6 phase - 115 tooth drivering - Easily serviced with no proprietary tools. Designed to keep you in the saddle and out of the service queue - Classic j-bend spoke interface - Steel cartridge bearings are durable

Chris King Boost 6-Bolt 148x12 rear hubs are designed as precision mountain tools. We use one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost 6-Bolt hubs have heavy-duty bearing seals, and a threaded driveshell seal ring. Our bearings, available in steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously, with tools of equal wear to ensure perfectly matched inner and outer races. The quality and speed of our bearings is what sets us apart from the competition and they are what you will feel and notice on every single ride. As Chris King bearing tracks burnish they get faster with age and all our hubs and bearings are fully serviceable for years upon years of demanding use. The patented Chris King RingDrive with 72-points of simultaneous-engagement will get your power to the ground fast, provide unmatched engagement, and give you that legendary Chris King angry-bee sound. - Steel Bearings - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Canted flanges for stronger wheel builds - Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement - Legendary made-in-house bearings - Come in 28h and 32h drilling - Available with Micro Spline, HG or XD driveshell. - Easily serviceable with a 2.5mm hex and pick or pen knife - Completely re-buildable with our ISO Hub Service Tool - Responsibly lightweight - Ceramic bearing upgrade available - Specifically designed for "BOOST" 148mm x 12mm axle standard

- Made start to finish in Asheville, NC - Light weight and easy to service

Industry Nine Hydra Classic hubs are the heart of your wheelset, everything revolves around them, literally. Every Classic Hydra hub is made start to finish in Asheville, NC. From turning and milling bar stock 7075-T6 aluminum for shells, axles and encaps, wire EDM cutting A2 tool steel for pawls and driverings, to in-house anodization lab, every step of design, engineering, manufacturing and assembly is done to exacting standards. - 690 P.O.E. Hydra Freehub body engages every .52 degrees yeilding telepathic control - 6 pawl, 6 phase - 115 tooth drivering - Easily serviced with no proprietary tools. Designed to keep you in the saddle and out of the service queue - Classic j-bend spoke interface - Steel cartridge bearings are durable

R45D hubs combine low-drag 45-tooth RingDrive™ system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. - Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement - Easily serviceable and completely re-buildable with our R45 Hub Service Tool - Hub Drilling: 32 - Skewer Included: No - Hub/Brake Compatibility: Center-Lock Disc - Cassette Body Type: Shimano/SRAM 11 Speed Road , Shimano/SRAM 8, 9, 10 Speed - Spoke Interface: J-Bend - Bearing Type: Sealed Cartridge

Aluminium front hub for bicycle - 18P DBCL 24 holes, straight pull, black. Dimension: 12x100mm.

The pinnacle among the hubs–Ratchet EXP united with SINC ceramic bearings. The premium 180 hub convinces with its sophisticated Ratchet EXP technology, giving the hub extra lightness, stiffness, and precision along with easy, no-tool maintenance. Furthermore, assembled with the low-friction SINC ceramic bearings, the hub performs efficiently and brings your power directly to the road. The hub is available for straight pull spokes only.

- Replacement driver for Original DJD or DJD-Bush Drive rear hub - Need DJD Original removal tool or DJD Bush Drive removal tool (sold separately)

The Clutch Hub is a traditional clutch-based coaster hub design that eliminates all of the problematic elements on ordinary hubs and only keeps the parts that work. A new, super-strong FULL 14mm axle, bearing configuration, and drag mechanism design stops the need for constant repairs. Equipped with external slack adjustment, which can be done with a 2.5mm hex key through a hub shell access hole (can be adjusted without removing the wheel), and an improved plastic hub guard spec. Same Clutch coaster hub you’ve come to love, but with a few upgrades. Features: - Maximum strength axle design - Super-durable bearing arrangement throughout - 2.5mm hex key slack adjustment through hub shell access hole. No wheel removal required. - Super-durable drag mechanism design - Crankflip ready Improvements Over the Clutch V1: - 14mm chromoly axle bolts on both the drive and non-drive side for greater reliability - Improved clutch engagement - Improved manufacturing precision throughout - More slack than the V1 hub - All-new durable proprietary plastic spec for the removable hub guard Specs: - 36-hole, 2014-T6 aluminum shell - 9T Driver - Left or right hand drive - 22 oz / 623g Guard Options: - Plastic hub guard included (but optional to use) - Alloy hub guard also available

- Dynamo generator front hub features 3.0-watt headlight power supply - A356 aluminum hub shell with 9mm solid nutted axle (140mm overall axle length) - Choose 70mm or 90mm drum brake (brake levers sold separately) - Light sold separately

The Shimano Alfine DH-UR705-3D Dynamo hub employs a new internal unit construction that is lighter and also reduces dynamo drag while producing 3 watts. It is designed for 26 to 28-inch Center Lock wheels and uses a 12 x 100mm E-THRU axle design. - New internal unit construction is 28g lighter than DH-T8000-3D - More efficient wheel rotation reduces dynamo drag by up to 44% from DH-T8000 - Proper positioning with 12mm E-THRU - Angular contact bearings - Compact & lightweight - Low rotational resistance - Effortless setting of disc rotor - Durable sealing performance

The Shimano HB-M525A hub is ideal for use with 6-bolt disc brake rotors and quick release dropouts. - Double contact sealing - Super polished bearing races for low friction rolling - 6-bolt ISO disc mounting surface

With simple setup and reliable trail performance, the Shimano Deore XT 8100 front hub is perfect for custom MTB wheel builds. - Easy disc brake rotor installation with Center Lock spline mount and lock ring - Tool-less 15mm thru axle system optimizes rigidity and weight - Simple setup and reliable trail performance

The Shimano HB-RS470 front disc brake hub features a Center Lock design, Internal Grease Sleeve, and Cup and Cone Bearing technology. - The Center Lock system makes for easy rotor installation with a quick and secure spline mount and lock ring - Hub features internal o-rings and a grease sleeve that helps maintain grease levels and increases service life

Dependable Independence – Reliability, versatility, and simplicity are united in a hub. Thanks to the proven freehub Ratchet System, the 350 hub is a dependable partner for every adventure. The 36-tooth ratchets ensure direct power transmission. The sophisticated yet simple construction of the hub allows a low weight while providing outstanding rolling performance. Furthermore, it enables cyclists not only to maintain their freehub system without special tools but also to convert to the various standards. The intention behind the 350 was to create a dependable hub that supports cyclists in their independence. PRODUCT DETAILS: - A DEPENDABLE HUB The freehub Ratchet System makes the 350 the dependable partner for any ride - NO TOOL CONCEPT Plug-in hub construction allows for quick and tool-free maintenance - NEW ENDCAPS The new shape of the end caps facilitates disassembly and thus speeds up handling requiring disassembly - VARIETY The 350 hub is available for all common axle standards and for the various drivetrain systems. TECHNOLOGY: We believe in the art of engineering and strive for sophistication in the product development process. Our guiding idea is to constantly push barriers with our in-house developed technologies. LEGENDARY RELIABILITY: The patented freewheel system, which features high-precision star ratchets, guarantees top performance and reliability. The simultaneous engagement of the ratchet teeth makes the Ratchet System extremely reliable since the loads are distributed equally across a large contact surface.

Hope Pro2 Evo Freehub Bodies · Not compatible with Hope Pro2

- Chromoly freehub body for Spin Doctor 6-Drive rear hub - HyperGlide 8-11-speed - Shimano/SRAM 8-10-speed, Shimano 11-speed mountain cassette compatible - Compatible with road and mountain 6-Drive hubs

Shimano's Alfine SG-S7001 Disc Brake Internally Geared Hub delivers an impressive gear range, spread across 11 speeds, all with the reliability and low maintenance you can only get with an internally geared hub. - Center Lock Disc Rotor Compatible

Direct power meets simplicity—running smoothly day-in and day-out. The 350 hub was developed according to the credo: Reliability meets simplicity. The simultaneous engagement of the ratchets and the resulting large engagement area provide reliability. The plugged construction allows easy maintenance without the need for tools. Adaptation to different axle standards or modification of the engagement angle is also possible with just a few manual steps.

Direct power meets simplicity—running smoothly day-in and day-out. The 350 hub was developed according to the credo: Reliability meets simplicity. The simultaneous engagement of the ratchets and the resulting large engagement area provide reliability. The plugged construction allows easy maintenance without the need for tools. Adaptation to different axle standards or modification of the engagement angle is also possible with just a few manual steps.

Direct power transmission in every riding situation—240 with Ratchet EXP. With the latest generation of the 240 hub, the strengths have been further enhanced. The latest Ratchet EXP freehub system increases the bearing lifetime thanks to the increased bearing distance. The new version of the end caps simplifies tool-free disassembly and makes maintenance easier. The hollow-machined ratchets transfer your energy directly into acceleration thanks to the 36 teeth.

R45D hubs combine a lightweight hub body, our legendary made-in-house bearings, and a six-bolt rotor mount to harness the power of disc brakes. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the rail steering from our one-piece solid axles. Our bearings, available in steel and ceramic, have heat-treated, surgical-grade steel races that are machined simultaneously, with tools of equal wear to ensure perfectly matched inner and outer races. The quality and speed of our bearings is what sets us apart from the competition and they are what you will feel and notice on every single ride. As Chris King bearing tracks burnish they get faster with age and all our hubs and bearings are fully serviceable for years upon years of demanding use. - Engineered, manufactured, and assembled in Portland, Oregon USA - 5-year built-to-last warranty - Legendary made-in-house bearings - Easily serviceable and completely re-buildable with our R45 Hub Service Tool - Available in 9 beautifully anodized colors - Ceramic bearing upgrade available

DT Swiss Sinc Ceramic cartridge bearings. - The black dust cover is intended to be installed facing the hub and the tan seal is intended to face externally

Build your singlespeed or fixie bike around Surly's Ultra New Roadie Rear Hub. This gorgeous hunk of aluminum has the capability you need and reliable sealed bearings, too! It sports threads for a track cog and lockring on one side and a freewheel on the other so you can decide how you want to roll. Plus, this hub's 130mm width fits most road frames and the hollow chromoly axle provides a flex-free ride as well as simple quick release skewer compatibility.

Track stars and fixed-gear converts love Surly's Ultra New Track Rear Hub! This gorgeous hunk of aluminum boasts reliable sealed bearings, and your choice of fixed/fixed or fixed/free gearing. Plus, this hub's 120mm width fits most track frames and the flex-free solid axle is forged from rugged chromoly.

12x142mm conversion endcaps for Hope Pro 2 Evo rear hubs.

The DT Swiss 240s MTB Center Lock Rear Hub hits the sweet spot between low weight and reliability. With multiple axle options and 6-bolt rotor adapters for the Center Lock spline, you can build up a high-end wheel for nearly any bike. On the winning end of countless World Cups and local races in every discipline from XC to enduro to downhill, these hubs are the centerpiece for thousands of nearly frictionless rides. Plus, DT's legendary Ratchet System ensures precise engagement and exceptional reliability, no matter how hard you stomp on the pedals.

Shimano Alfine SG-S7001 Disc Brake Internally Geared Hub delivers an impressive gear range, spread across 8 speeds, all with the reliability and low maintenance you can only get with an internally geared hub. - Center Lock Disc Rotor Compatible - Rotor lockring not included - Hub Center to Flange: 30.0mm - Hub Drilling: 32-hole - Flange Diameter: 92.5mm - Drivetrain Speeds: 8 - Spoke Interface: J-Bend

End caps for front conversion hubs.

- 15 x 100mm thru-axle endcaps for Spin Doctor 6F (front)hub - 20 x 110mm thru-axle endcaps for Spin Doctor 6F (front hub - Conversion kits for Spin Doctor 6-Drive hubs are not compatible with original Spin Doctor and Spin Doctor Pro hubs

- Light but strong enough for all types of riding including XC through DH - Forged CNC machined aluminum shell 2 sealed cartridge bearings - International Standard 6-bolt disc rotor mount - End caps for 9x100mm QR available separately - Boost version (HL-3208) is 15x110mm only - Flange diameter: 58mm left/right - Center to flange: 22mm left 30mm right

- Axle/Spacing: 10/14 x 135mm bolt-on - 14mm adapters included - Micro-drive cassette rear hub for singlespeed and dirt jump - International Standard 6-bolt disc rotor mount - Bushed driver for greater durability over cartridge bearings (bearings have to be smaller for micro-drive, thus prone to higher loads) - Forged 6061 aluminum shell, 2 main body sealed cartridge bearings - CrMo M10 bolt-in fittings with 6mm anti-rotation hex fitting (helps when tightening wheel in frame) - 12mm thru-axle conversion for DJD-BD available separately - No cog included - 9/10/11/13/16t mini sprockets available separately

Hope Front Axle Conversion Kits · Compatible with Pro 2 and Pro 2 Evo hubs · Converts all Hope Pro 2 and Pro 2 Evo hubs to 15mm through axle hubs

- Press fit designed to work the hub's non-drive side collar.

With simple setup and reliable trail performance, the SLX front hub is perfect for custom MTB wheel builds. - Easy disc brake rotor installation with Center Lock spline mount and lock ring - Tool-free 15mm thru axle system is stiff and lightweight - Simple setup and reliable trail performance

R45 Centerlock hubs combine a lightweight hub body, our legendary made-in-house bearings, and now Centerlock compatibility to harness the power of disc brakes. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the rail steering from our one piece solid axles. Our bearings, available in steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously, with tools of equal wear to ensure perfectly matched inner and outer races. The quality and speed of our bearings is what sets us apart from the competition and they are what you will feel and notice on every single ride. As Chris King bearing tracks burnish they get faster with age and all our hubs and bearings are fully serviceable for years upon years of demanding use. Product Benefits - Engineered, manufactured and assembled in Portland, Oregon USA - Legendary made-in-house bearings - 5-year built-to-last warranty - Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement - Easily convertible axles 100mm x 9mm QR or 100mm x 12mm thru axle front options. 135mm x 10mm QR or 142mm x 12mm thru axle rear - Easily serviceable and completely re-buildable with our R45 Hub Service Tool - Ceramic bearing upgrade available - Lockring is sold separately (PHB355) and is required for rotor installation on rear hub

- An oversized hub shell increases torsional and lateral stiffness - 6902 bearings for maximum durability - Wide bearing placement was designed to decrease load on the bearings - Low-drag labyrinth seals - Tool-free endcaps - Torque-cap compatible - Includes standard 15mm end-caps only, Torque must be purchased separately

- An oversized hub shell increases torsional and lateral stiffness - 6902 bearings for maximum durability - Wide bearing placement was designed to decrease load on the bearings - Low-drag labyrinth seals - Tool-free endcaps - Torque-cap compatible - Includes standard 15mm end-caps only, Torque must be purchased separately

The Box One Stealth Expert Rear Hub is designed to be lightweight for smaller riders and features small hub flanges, lower spoke counts, and decreased material to keep the weight down. Featuring our Stealth Technology adds instant engagement and silent low-drag coasting making it ideal for Mini, Junior, or Expert wheel build. Still, it may also accommodate a lightweight rider looking to move up to a pro-sized bike. FEATURES - Stealth Technology™ - Instant Power Delivery - Low Drag Coasting - Infinite Points of Engagement - Silent Coasting - Micro-Adjust Pre-Load Collar

Dependable Independence – Reliability, versatility, and simplicity are united in a hub. Thanks to the proven freehub Ratchet System, the 350 hub is a dependable partner for every adventure. The 36-tooth ratchets ensure direct power transmission. The sophisticated yet simple construction of the hub allows a low weight while providing outstanding rolling performance. Furthermore, it enables cyclists not only to maintain their freehub system without special tools but also to convert to the various standards. The intention behind the 350 was to create a dependable hub that supports cyclists in their independence. PRODUCT DETAILS: - A DEPENDABLE HUB The freehub Ratchet System makes the 350 the dependable partner for any ride - NO TOOL CONCEPT Plug-in hub construction allows for quick and tool-free maintenance - NEW ENDCAPS The new shape of the end caps facilitates disassembly and thus speeds up handling requiring disassembly - VARIETY The 350 hub is available for all common axle standards and for the various drivetrain systems. TECHNOLOGY: We believe in the art of engineering and strive for sophistication in the product development process. Our guiding idea is to constantly push barriers with our in-house developed technologies. LEGENDARY RELIABILITY: The patented freewheel system, which features high-precision star ratchets, guarantees top performance and reliability. The simultaneous engagement of the ratchet teeth makes the Ratchet System extremely reliable since the loads are distributed equally across a large contact surface.

The pinnacle among the hubs–Ratchet EXP united with SINC ceramic bearings. The premium 180 hub convinces with its sophisticated Ratchet EXP technology, giving the hub extra lightness, stiffness, and precision along with easy, no-tool maintenance. Furthermore, assembled with the low-friction SINC ceramic bearings, the hub performs efficiently and brings your power directly to the road. The hub is available for straight pull spokes only.

Dependable Independence – Reliability, versatility, and simplicity are united in a hub. The 350 hub is a dependable road mate for every adventure, whether on asphalt or gravel roads. A lightweight axle in combination with a milled hub body ensures a low weight while the proven Ratchet System with 36 teeth guarantees reliable power transmission. The plug-in construction allows maintenance of the freehub system without special tools and conversion to different standards - for maximum versatility. PRODUCT DETAILS: - A DEPENDABLE HUB The freehub Ratchet System makes the 350 the dependable partner for any ride - NO TOOL CONCEPT Plug-in hub construction allows for quick and tool-free maintenance - NEW ENDCAPS The new shape of the end caps facilitates disassembly and thus speeds up handling requiring disassembly - VARIETY The 350 hub is available for all common axle standards and for the various drivetrain systems. TECHNOLOGY: We believe in the art of engineering and strive for sophistication in the product development process. Our guiding idea is to constantly push barriers with our in-house developed technologies. LEGENDARY RELIABILITY: The patented freewheel system, which features high-precision star ratchets, guarantees top performance and reliability. The simultaneous engagement of the ratchet teeth makes the Ratchet System extremely reliable since the loads are distributed equally across a large contact surface.

The new standard for durability and price. - Contact-free seals and high precision build guarantee smooth bearings

- SPANK's HEX DRIVE 102T technology delivers 3.5° engagement, for almost instant pickup - 6 independent pawls with 3 steps per pawl, work in unison, meaning 18 engagement points per click - Bite-Block Alloy HG and XD Freehub bodies resist damage from cassettes without the weight penalty of steel - Unique flange design reduces dish requirement and minimizes tension range between drive-side and non-drive-side spokes - Advanced seal system improves prevention of bearing/drive system contamination

Surly's Ultra New Disc Rear Hub is just the thing for singlespeed fanatics and one-gear mountain riders. This gorgeous hunk of aluminum boasts reliable sealed bearings and a 6-bolt disc attachment on one side and threads for a singlespeed freewheel (or fixed cog) on the other. A hollow axle lets you choose how to secure it to your dropouts. You have choice between the included fixing bolts or a quick release skewer (sold separately). And, that aforementioned chromoly axle is flex-free to take all the abuse you can dish out, and then some!

Track stars and fixed-gear converts will love Surly's Ultra New Front Hub. This gorgeous hunk of aluminum sports sealed bearings for all-weather reliability and low friction. And, the hollow axle is forged from flex-free chromoly for steering precision, long-lasting durability and simple quick-release compatibility.

- A356 aluminum hub shell with 9mm solid nutted axle (136mm overall axle length) - Choose 70mm or 90mm drum brake front hub (brake lever sold separately)

- Threaded for multi-speed freewheel (7sp), includes 70mm drum brake - A356 aluminum hub shell with 9mm solid axle (183mm overall axle length) - Freewheel and brake lever sold separately

- Internal gear 3-speed hub with HG-splined 8-10sp freehub body for use with any IS 6-bolt disc brake - 6061 aluminum hub shell with 13/32" slotted solid axle (179mm overall axle length) - Gear ratio range of 177% (33% each step) - Cassette and shifters sold separately. Special shifter setup required: internal 3sp is shifted via a standard mountain 3sp front derailleur shifter. Sturmey Archer shifters not compatible with this hub

- Threaded for singlespeed freewheel, includes 70mm drum brake - A356 aluminum hub shell with 9mm solid axle (183mm overall axle length) - Freewheel and brake lever sold separately

Hope Front Axle Conversion Kits · Compatible with Pro 2 and Pro 2 Evo hubs

- Rear axle conversions for Spin Doctor Pro rear hub - Various replacement axles and conversion kits for Spin Doctor and Spin Doctor Pro hubs - Some conversions utilize pre-existing axle components for retrofit - Conversion kits for original Spin Doctor and Spin Doctor Pro hubs are not compatible with Spin Doctor 6-Drive hubs

- Axle/Spacing: 10/14 x 135mm nutted - International Standard 6-bolt disc rotor mount - 11 tooth (1/8") steel cog is pre-installed, ideal for compact drivetrain setup - Tough, instant pickup 120 point triple wedge pawl system with a bushed mini threaded driver for Singlespeed and Dirt Jump - Bushed driver is more durable than cartridge bearings - Forged 6061 aluminum shell, 2 main body sealed cartridge bearings - CrMo M10 bolt-in fittings with 6mm anti-rotation hex fitting (helps when tightening wheel in frame), 14mm adapters included