Cassettes/Freewheels

$47.99 - $48.99
Shimano's 105 10-Speed Cassette delivers excellent shifting and durability. The cogs are made of long-lasing, smooth-running steel. They have Shimano's engineered tooth shapes for precision shifting. And for lightness, the cassette has an aluminum carrier for the top cogs and nylon spacers.

$255.99 - $277.99
- Rider Tuned Gearing
- Wider Gear Combination: 11 – 28T/12 – 28T/11 – 30T (New Gear Combination)
- Closer Gear Combination: 11 – 25T/12 – 25T
- Lightweight
- CFRP & Alloy Spider Arm, 5 Titanium Sprockets
- Gear Combination: 11 – 25T, 11 – 28T, 11 – 30T (New Gear Combination), 12 – 25T, 12 – 28T

$20.99
These 8-speed cassettes are nickel plated for durability and constructed using the same processes as microSHIFT's higher-end cassettes, resulting in rapid, responsive shifting at an affordable price.
- Nickel-plated
- Continuously molded cogs are straighter than stamped steel, resulting in more consistent, predictable shifting performance
- Precision ramps and chamfers for rapid chain movement
- Compatible with SRAM and Shimano 8-speed systems
- Steel lock ring
Gear combinations:
- 12-25T: 12-13-15-17-19-21-23-25
- 11-28T: 11-13-15-17-19-21-24-28
- 11-32T: 11-13-15-18-21-24-28-32
- 12-32T: 12-13-15-18-21-24-28-32
- 11-34T: 11-13-15-18-21-24-28-34

$20.99 - $21.99
These 9-speed cassettes are nickel plated for durability and constructed using the same processes as microSHIFT's higher-end cassettes, resulting in rapid, responsive shifting at an affordable price.
- Nickel-plated
- Continuously molded cogs are straighter than stamped steel, resulting in more consistent, predictable shifting performance
- Precision ramps and chamfers for rapid chain movement
- Compatible with SRAM and Shimano 9-speed systems
- Steel lock ring
Gear combinations:
- 11-25T: 11-12-13-15-17-19-21-23-25
- 12-25T: 12-13-14-15-17-19-21-23-25
- 11-28T: 11-12-13-15-17-19-21-24-28
- 11-32T: 11-13-15-17-19-21-24-28-32
- 11-34T: 11-13-15-17-19-21-24-28-34
- 11-36T: 11-13-15-18-21-24-28-32-36

$24.99 - $29.99
MicroSHIFT's H10 cassettes are manufactured to exacting tolerances for straightness, shift quality, and durability, resulting in responsive shifting performance that lasts longer than you might expect.
- Sprockets are chrome-plated for hardness and corrosion resistance
- Continuously molded cogs are straighter than stamped steel, resulting in more consistent, predictable shifting performance
- Precision ramps and chamfers for rapid chain movement
- Compatible with SRAM and Shimano 10-speed systems
- Steel lock ring
Gear combinations:
- 11-25T: 11-12-13-14-15-17-19-21-23-25
- 11-28T: 11-12-13-14-15-17-19-21-24-28
- 11-32T: 11-12-13-15-17-19-21-24-28-32
- 11-34T: 11-12-13-15-17-19-21-24-28-34
- 11-36T: 11-13-15-17-19-21-24-28-32-36

$29.99 - $100.00
MicroSHIFT's H11 cassettes are manufactured to exacting tolerances for straightness, shift quality, and durability, resulting in responsive shifting performance that lasts longer than you might expect.
- Continuously molded cogs are straighter than stamped steel, resulting in more consistent, predictable shifting performance
- Precision ramps and chamfers for rapid chain movement
- Compatible with SRAM and Shimano 11-speed systems
- Steel lock ring
- Chrome plated for hardness and corrosion resistance
Gear combinations:
- 11-25T: 11-12-13-14-15-16-17-19-21-23-25
- 11-28T: 11-12-13-14-15-16-17-19-21-24-28
- 11-32T: 11-12-13-14-15-17-19-21-24-28-32
- 11-42T: 11-13-15-17-19-21-24-28-32-36-42

$249.00
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

$249.00
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

$299.00
The e*Thirteen TRS Plus 12-Speed Upgrade Kit lets you upgrade your existing 11-speed SRAM drivetrain to a 12-speed drivetrain without needing new cranks, chainrings, shifters, or derailleurs. All parts and required tools are included including new internals for the SRAM shifter.
- Kit is also compatible with Shimano XTR, XT, and SLX 12-speed drivetrains when used with Shimano 12-speed derailleurs and shifters
- 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
- 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

$279.00
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
- 2 aluminum cogs and 10 steel cogs offer both light weight and durability
- Designed for use with standard and eBike 12-speed drivetrains
- 556% range
- Cassette Body Type: SRAM XD 11/12 Speed
- Cassette Cogs: 9-11-13-15-17-20-23-27-31-36-42-50
- Drivetrain Speeds: 12
- Designed for ebike: Yes
- Color: Black
- Weight: 395 g

$209.00 - $249.00
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

$74.95
The GC line of cassette extender cogs allow you to modify your 10-speed cassette into a wide range cassette. To achieve the optimal shifting, the GCs are optimized for Shimano or SRAM cassette.
Compatibility:
- Compatible with SRAM 10-speed cassettes
- Compatible with all 10 speed rear derailleurs and chains
- Note that you may need a longer chain that you currently have on your bike
- Chain stretch should be less than .5 when installing a new GC
- Can be run in 2x configuration with a long cage rear derailleur
- These fit very tight on certain Stan's No Tubes hubs like the 3.30 and the Easton X4 hubs. With a little filing and some grease they will go on.

$79.95
The product that set the standard and still the best available! The GC line of cassette extender cogs allow you to modify your 10-speed cassette into a wide range cassette. To achieve the optimal shifting, the GCs are optimized for Shimano or SRAM cassette so always select the correct type for the cassette brand you have.
Compatibility:
- Compatible with SRAM 10-speed cassettes listed on the GC tech page
- Compatible with all 10-speed chains
- Note that you may need a longer chain that you currently have on your bike
- Chain stretch should be less than .5 when installing a new GC
- Compatible with all 10 speed rear derailleurs except non-clutch type SRAM rear derailleurs model year 2012 and older
- These older rear derailleurs do work with the GC40.
- Can be run in 2x configuration with a long cage rear derailleur
- These may fit tightly on some over-sized hub bodies such as Stan's No Tubes 3.30 and the Easton X4 hubs. With a little filing and some grease they will go on.

$74.95 - $79.95
- Extended range aluminum cog for those wanting 1x10 with a full range of gears
- Only fits Shimano XT/XTR 11-36t (M771/M980) or SRAM X5/X7/X9/X0 11-36t 10sp cassettes (not compatible with 2011 and older SRAM derailleurs)
- Requires removal of the 17T or 15T cog and spacer from existing cassette
- Longer B-screw (sold separately) only needed for about 50% of Shimano derailleurs
- May require a longer 10sp chain. Very tight fit on Stans 330 rear hub splines
- Designed and manufactured in the USA from 7075-T6 aluminum alloy

$35.00
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.

$35.00
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.

$18.39 - $21.59
• Easy-on, easy-off
• Available in two chain widths and two colors
• Available in six teeth sizes

$45.99
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

$5.00
- 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

$5.00
- 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

$10.99 - $12.99
- Special single gear design with chain tensioner
- Revised tooth profile to prevent chain skip
- MODEL NO: CS-S500
- SERIES: SHIMANO ALFINE S7000/S700 Series
- Gear thickness (mm): 2.0
- Recommended chain: Super Narrow HG for 9-speed

$28.99 - $36.99
- MODEL NO: CS-HG400-9
- SERIES: SHIMANO ALIVIO M4000 Series
- Compatible chain: HG 9-speed
- Speeds: 9-speed
- Type: HG
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