Cassettes/Freewheels

The e*thirteen XCX+ is a lightweight and durable cassette that offers excellent range, and is compatible with both SRAM and Shimano drivetrains. - 10 steel cogs and 1 aluminum cog provide durability - Ultra-stiff cluster keeps power at the wheels - 378% range - Compatible with Shimano and SRAM drivetrains - Cassette Body Type: SRAM XD 11/12 Speed - Cassette Cogs: 9-11-13-15-17-19-21-24-27-30-34 - Drivetrain Speeds: 11 - Designed for ebike: Yes - Color: Black - Weight: 271 g

The TRS Plus Cassette offers impressive range and crisp shifting performance on both SRAM and Shimano drivetrains. Using a unique two-piece, individually replaceable assembly and a 9t cog, the TRS+ provides superior ground clearance in a compact package so you can clean steeper climbs. More range, more fun, same standard. - 511% range is great for modern 1x drivetrains - 10 steel cogs, plus 1 aluminum cog increase durability - Saves weight by using smaller chainrings and shorter chains, which also provides better ground clearance - Designed for use with eBike drivetrains - Compatible with Shimano and SRAM drivetrains - Cassette Body Type: SRAM XD 11/12 Speed - Cassette Cogs: 9-10-12-14-17-20-24-28-33-39-46 - Drivetrain Speeds: 11 - Color: Black - Weight: 390 g

The TRS Plus Cassette offers impressive range and crisp shifting performance on both SRAM and Shimano drivetrains. Using a unique two-piece, individually replaceable assembly and a 9t cog, the TRS+ provides superior ground clearance in a compact package so you can clean steeper climbs. More range, more fun, same standard. - The TRS Plus cassette plugs directly into all SRAM Eagle and Shimano XTR, XT, and SLX 12-speed drivetrains - Smaller 9-46T cassette gives a better chainline, for longer-lasting drivetrains - The assembly utilizes XD™ Driver mounting to enable a 9-46T 12-speed cassette, keeping the drivetrain simple, yet providing the gear range of a 2X system - Designed to offer better ground clearance and be run with a smaller chainring to keep equivalent 10-50T gearing (10-50T w/34T chainring = 9-46T w/32T chainring) - 511% range - Cassette Body Type: SRAM XD 11/12 Speed - Cassette Cogs: 9-10-12-14-16-18-21-24-28-33-39-46 - Drivetrain Speeds: 12 - Color: Black - Weight: 336 g

absoluteBLACK single speed cogs feature a unique tooth shape, narrow-wide profile, and perfect roundness. Crafted with CNC machined 7075 aluminum with an anodized finish for long-lasting construction. - Tooth design is wider and more "square-like" compared to other single speed cogs - The narrow-wide profile provides additional strength and offers greater chain retention - Compatible with 1X, 6, 7, 8, 9, 10, 11, and 12-speed chains - To utilize the narrow-wide feature, use a 9, 10, 11, or 12-speed chain - Not compatible with half-link chains - Compatible with Shimano HG cassette bodies

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

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

Designed to be an extra durable single speed cog option, the Stainless Steel cog features extra tall teeth and a wide 4.5 mm base to limit freehub gouging. - Made from hardened and electropolished 416 stainless steel compatible with 9,10,11 speed chains

The ENO freewheel is our durable single speed freewheel. Our freewheel has a long history of being durable, reliable and rebuildable. The ENO freewheel has been made rebuildable by first making everything replaceable, from the bearing and outer gear to the pawls and springs. Its is made durable and reliable by machining inner driver and outer gear case with extremely tight tolerances resulting in a freewheel that runs concentrically so there aren't tight and loose spots. A 36 point engagement system and a case hardened, nickel electro-plated outer gear case make this freewheel a perfect addition to your single speed. For trials riders or those wanting a beefier version we offer the trials freewheel with 72 points of engagement and a thicker outer gear case to withstand the rigors of a more demanding style of riding.

The White Industries Dos ENO is the perfect way to add some versatility to your single speed bike. This smart design places two speeds on one freewheel, allowing riders to manually move the chain between gears when lower or higher gears are desired. Unlike traditional disposable freewheels, the Dos ENO uses a top quality sealed cartridge bearing that keeps out mud, dust and grime and is easily replaced when worn. A precision machined inner driver and outer gear case eliminate tight and loose spots associated with lower quality freewheels. Finally, a 36 tooth engagement system and a case hardened, electroless nickel plated outer gear case provide instant power transfer to the pedals, outstanding protection from the elements, and jaw dropping looks.

In 2002 Doug White decided the world needed a better freewheel. Until then singlespeeders seemed to be content not knowing if their freewheel would last a week or a year, or fail a mile away from home or hundreds of miles. But what was certain was failure. Overnight the ENO freewheel became the standard to measure everything else against. Starting with a driver made from heat-treated 4130 steel that houses 3 heat-treated S7 tool steel pawls (6 on the Trials model), we add an 8620 steel case-hardened and electroless nickel-plated outer gear turning on an Enduro chromium steel bearing. We basically designed all the weak links out of the system. And because everything wears out eventually, we designed them to be rebuildable. Standard single and DOS freewheels feature 36 points of engagement while the Trials freewheels utilize a thicker outer gear (the base, not the teeth) and 72 points of engagement to make those insane moves a little easier to pull off. Our freewheel bearings are ABEC 3 or 5 grade depending on freewheel type, are made from chromium steel, and use a special Mobil XHP222 extra high-pressure grease. - Teeth: 16/18T - Chain Width: 3/32" SPECIFICATIONS - Threads: 1.37” x 24TPI - Standard and DOS freewheels have 3 pawls and 36 points of engagement - Trials freewheels have 6 pawls and 72 points of engagement - Lockring color: Blue - All freewheels are 18.4mm wide - On DOS freewheels inside teeth are 6.1mm from the inner base of the threads and the outside teeth are 11.8mm from the base. Teeth are 5.7mm apart center to center

- 9 speed cassette - Fits Shimano/SRAM freehub - 11-32T

- 10 speed cassette - Fits Shimano/SRAM freehub - 11-36T

- 11 speed wide range cassette - Alloy spiders, spacers and lock ring - Fits Shimano/SRAM freehub

Pair this cog with your Shimano-compatible rear hub, spacers and a lockring (sold separately) and discover the joy and simplicity of a singlespeed without the cost of a new wheel. Machined from heat-treated chromoly and then chrome plated, these seriously tough cogs are strong, shiny and they come in sizes from 13T to 22T so you can pick the perfect gear.

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.

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

- Fluid Drive Plus shift profiling, compatible with SRAM and Shimano 8sp drivetrains - Steel rings, engineering polymer spacers, nickel plated finish - 12 – 25T - 281g

- Black polymer spacers - Multiple speed options available - Range: 14-28T - Speed: 7 - Cog Material: Steel

- Fluid Drive Plus shift profiling, compatible with SRAM and Shimano 9sp drivetrains - Steel rings, engineering polymer spacers, nickel plated finish - 11-28 - 280g

RS1 Cassettes are a great replacement for 10-speed road sytems. - Steel Spider - Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed - Cassette Cogs: 11-12-13-14-15-17-19-21-24-28 - Drivetrain Speeds: 10 - Weight: 267 g

RS3 Cassettes are a great replacement for 11-speed road sytems. - Lightweight wide-range Road cassette compatible with HG 11sp road freehub bodies - Steel cogs (top 3 mounted to spider), steel lockring, and composite spacers - Cassette Body Type: Shimano/SRAM 11 Speed Road - Drivetrain Speeds: 11 - Cogs: 11,12,13,15,17,19,21,23,25,28,32 - Weight: 332 g

The Sunrace MX3 10 speed cassette is a cost effective upgrade or replacement cassette. - Alloy spiders, lockring and spacers - Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed - Drivetrain Speeds: 10

- 10 speed wide range cassette - Steel spiders - Fits Shimano/SRAM freehub - 494g (11-42); 458g (11-40)

The SunRace MX 11-Speed Cassette is a wide-ratio cassette designed for XD driver bodies. - Largest sprocket crafted from A7075 aluminum - Black chrome finish - 460% range - Cassette Body Type: SRAM XD 11/12 Speed - Drivetrain Speeds: 11 - Weight: 502 g

The SunRace MZ 12-Speed Cassette offers a wide ratio design. - Compatible with SRAM 12-speed rear derailleurs (Shimano rear derailleurs are not compatible) - Designed for use with HG freehub bodies, but not compatible with XD or Microspline freehub bodies - Spider, lockring, and spacer constructed from alloy - 7 Sprockets mounted on 2 spider carriers - Black chrome finish

- 3-spline steel cogs for use with Sturmey 3-speed (and 5-speed) internal gear rear hubs - Flat or dished for tuning chainline. Xylan coating for greater durability

- Reliable chrome-plated Chromoly 4-notch freewheel

- CNC-machined from hardened chromoly with phosphate black finish - Threaded track cog for 1.37"x24tpi (right handed) threads - Choose 3/32" or 1/8" widths (Use SF-1750 for lockring)

Shimano Dura-Ace R9100 Cassette Spacers

Shimano spacers for use with various Shimano cassettes. - For use on 11-Speed freehub body with 9 or 10-Speed cassette - Using 10-Speed cassette on 11-Speed freehub body requires both 1.85mm (FW8991) and 1.0mm (FW4671) spacer - Using 9-Speed cassette on 11-Speed freehub body only requires 1.85mm (FW8991) spacer