Cassettes/Freewheels

The SunRace MZ 12-Speed Cassette offers a wide ratio design. - Shimano compatible 12-speed cassette - Black chrome finish - 464% range

The uninterrupted shifting experience of the Shimano Ultegra CS-R8100 12-speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ technology is integrated to provide seamless shifts both up and down the gear range. - Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation - Faster, smoother shifts under maximum pedaling force - Compatible with 12-speed and road 11-speed freehub body

The uninterrupted shifting experience of the Shimano Ultegra CS-R8100 12-speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ technology is integrated to provide seamless shifts both up and down the gear range. - Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation - Faster, smoother shifts under maximum pedaling force - Compatible with 12-speed and road 11-speed freehub body

Designed for the next generation of drivetrains and the next generation of riders. The SRAM Force XG-1270 cassette is optimized for electronic shifting and features our X-Range gearing technology. Smooth, precise shifts, from 10T on up. - Features at least five one-tooth jumps for a smoother gear progression - 10-tooth start helps provide a wider gearing range - Designed to work with an XDR driver body - MINI CLUSTER construction reduces weight and increases durability - All Zipp wheels starting from 2012 are XDR-ready - SRAM Force XG-1270 cassettes sold prior to 2021 have a black finish. In 2021, the design was updated to a nickel-chrome finish.

The Campagnolo EKAR 13-Speed Cassette offers full range to match or exceed any 2x systems. - The 9-tooth sprocket allows full range with zero drop in efficiency - Compact cassette has a narrow design with quick changes, lightweight, improved chain security - Crafted from tough materials and durable design, with no weight penalty - Closer low gear spacing creates natural cadence progression - Wider higher gear spacing creates top-end speed options - The 2-piece block blends strength of steel with light weight of alloy - Compatible with the Campagnolo N3W driver body for great versatility and full compatibility - 10-44T cassette is ideal for gravel and adventure riding

New Super Record 12 Speed sprocket cassettes: innovation which gives the user great advantages, thanks to the matching dimensions and complete compatibility with wheels and frames. The rider has always been Campagnolo’s focus, and the goal has always been facilitating their performance; making the impossible possible. Adding an additional sprocket might seem simple, however, we have not only succeeded in maintaining the same footprint, but also improving the component’s performance and durability, which was a tricky challenge! The new Super Record 12 Speed sprocket sets feature thinner sprockets, tighter spaces and space-saving dimensions that are the same as those of the 11 Speed sprockets, meeting everyone’s needs with just two (11:29; 11:32) cassettes. The addition of the twelfth sprocket allows a linear upshift or downshift by a single tooth, up to the seventh gear, allowing the cyclist to find the perfect ratio for any situation. In addition, the closer sprockets ensure faster, quieter and more precise shifting thanks to the special tooth design and surface treatment which guarantees a longer lifespan. The 6 larger sprockets are also available in two single-piece steel triplets, to avoid energy loss. Mounting the cassettes is easy thanks to matching-thickness spacers.

The HELIX R Cassette is an upgrade to any SRAM™ Eagle™ or Shimano™ drivetrain, with more range than other cassettes on the market. The 9 tooth cog lets you step down one chainring size while keeping the same top end gearing and provides not only better ground clearance, but an overall lighter drivetrain. - 1 aluminum cogs, 10 steel cogs - Designed for use with XD™ and XDR™ drivers only

Light, strong with extra tall teeth, the Wolf Tooth Aluminum Single Speed Cog is a lightweight option for single speed cogs that's offered in a variety of sizes. - Wide 4.5mm base won't dig into your freehub - Made of 7075 Aluminum Alloy for durability and lightness - Made in the USA

SOLO-XD 16T Single Speed Cog SOLO-XD Single Speed chainrings are designed with narrow to wide alternating tooth pattern allowing for superior chain retention. 7075 Aluminum Tooth Count: 16 Compatible with SRAM XD/XDR Freehub Bodies on the SOLO-XD. *Cogs are optimized for use with SOLO-XD and SOLO-SPLINE Carrier system only.

SOLO-XD 20T Single Speed Cog SOLO-XD Single Speed chainrings are designed with narrow to wide alternating tooth pattern allowing for superior chain retention. 7075 Aluminum Tooth Count: 20 Compatible with SRAM XD/XDR Freehub Bodies on the SOLO-XD. *Cogs are optimized for use with SOLO-XD and SOLO-SPLINE Carrier system only.

SOLO-XD 18T Single Speed Cog SOLO-XD SOLO-XD Single Speed chainrings are designed with narrow to wide alternating tooth pattern allowing for superior chain retention. 7075 Aluminum Color: Purple Tooth Count: 18 Compatible with SRAM XD/XDR Freehub Bodies on the SOLO-XD. *Cogs are optimized for use with SOLO-XD and SOLO-SPLINE Carrier system only.

SOLO-XD Single Speed Conversion Kit for XD/XDR Hubs Revolutionize your cycling experience with the Solo-XD Single Speed Conversion Kit from Wheels Manufacturing. Designed to seamlessly transform your XD/XDR hubs into a powerful single-speed setup, this kit offers unrivaled simplicity and precision for a ride like no other. When SRAM introduced a new freehub body that could accommodate more gears, we saw an opportunity to create the Solo-XD. It's an adjustable kit that lets you fine-tune your chainline and choose from a range of cog sizes and colors, making it versatile enough to work with any kind of bike. You don't need to go out and buy a whole new set of wheels just to ride singlespeed. The Solo-XD makes it easy and affordable to convert your existing wheels. Whether you're commuting, racing or hitting the trails, the Solo-XD will give you the simplicity and reliability you crave. So if you're tired of dealing with complicated gearing systems and want to simplify your ride, give the Solo-XD a try. It's the ultimate conversion kit for singlespeed enthusiasts! FEATURES:The XD features a clever design that utilizes a base sleeve, which easily slides onto the XD freehub body, mimicking the process of installing a cassette. Once the base sleeve is in place, you can effortlessly slide the spacers and cog over it, securing everything with a reliable lock ring. 7075 Aluminum carrier and cogs for durability. 6061 Aluminum Spacers. Kit weight 115g (lighter than other kits on the market) Adjustable spacers to achieve the optimal chainline. Compatible with SRAM XDR freehub bodies. Chainrings are designed with narrow wide alternating tooth pattern allowing for superior chain retention. Additional cog sizes are available in 16T, 18T and 20T. *Cogs are optimized for use with XD Carrier system only

SOLO-XD Single Speed chainrings are designed with narrow to wide alternating tooth pattern allowing for superior chain retention. 7075 Aluminum Tooth Count: 16 Compatible with SRAM XD/XDR Freehub Bodies on the SOLO-XD. *Cogs are optimized for use with Solo-XD Carrier system only.

The Solo-XD features a clever design that utilizes a base sleeve, which easily slides onto the XD freehub body, mimicking the process of installing a cassette. Once the base sleeve is in place, you can effortlessly slide the spacers and cog over it, securing with a lock ring. 7075 Aluminum carrier and cogs. 6061 Aluminum Spacers. Kit weight: 115g Compatible with SRAM XD/XDR freehub bodies. Cogs are designed with narrow wide tooth pattern for superior chain retention. Additional cog sizes are available seperately in 16T and 20T. Included: 1 Lock Ring (6061 Aluminum) 1 Carrier Ring (7075 Aluminum) 1 End Spacer (6061 Aluminum) 1 5mm Spacer (6061 Aluminum) 2 2mm Spacers (6061 Aluminum) 1 1mm Spacer (6061 Aluminum) 1 1.8mm XDR Conversion Spacer (6061 Aluminum) 1 18T Cog (7075 Aluminum)

The TRP CS-M8070 7-speed DH cassette offers high wear resistance with durable steel cogs and an integrated CNC machined aluminum spoke protector. - 11-24t gear range is optimized for DH applications - Durable steel cogs provide high wear resistance for longevity - Integrated CNC machined aluminum spoke protector offers and added failsafe for the roughest riding conditions

Machined from heat-treated, chrome-plated chromoly, these seriously tough cogs will hold up to massive track sprints and crazy skid-stops. Surly's Track Cogs are strong, shiny and they come in two widths and sizes from 13T to 22T so you can select the perfect gear.

- 6-speed freewheel - 14 – 28T

- Steel - 7-speed

- 7-speed SIS compatible Freewheel

8-speed SIS compatible freewheel

• Steel • 8-speed

• Easy-on, easy-off • Available in two chain widths and two colors • Available in six teeth sizes

- 7-speed MTB cassette - Super Fluid Drive™ technology - Steel cogs and lock ring - ~ 310g - SHIMANO Equivalent CS-HG41 / CS-HG20

- Lightweight Design - Steel rings with engineering polymer spacers - Nickel finish - 7 Speed compatible - Weight - 248g

- Lightweight Design - Steel rings with engineering polymer spacers - Nickel finish - 8 Speed compatible - Weight—346g

- 8 speed wide range - 11-40t - Steel spider

- 9-speed MTB cassette - Super Fluid Drive™ technology - Steel cogs and lock ring - ~ 350g - SHIMANO Equivalent CS-HG50 / CS-HG30 / CS-HG20

- Wide range 11-speed cassette - Drilled alloy spiders reduce weight without sacrificing strength - 11-speed compatible only

- Wide ratio cassette with 5 steel sprockets on 2 steel spider carriers with polymer spacers - Featuring Sunrace`s Fluid Drive Plus technology for precision shifting

- 12-speed wide range MTB cassette - Steel construction with alloy spider and spacers