Cassettes/Freewheels

$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.

$69.95
Wolf Tooth Components Drop-Stop 36T Chainring: For Shimano XT 8000 Cranksets with a 96 Asymmetrical BCD Black

$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.

$29.99 - $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.

$12.10 - $19.99
• Easy-on, easy-off
• Available in two chain widths and two colors
• Available in six teeth sizes

$20.52
- Fluid Drive Plus shift profiling, compatible with SRAM and Shimano 8sp drivetrains
- Steel rings, engineering polymer spacers, nickel plated finish
- 12-25
- 281g

$29.90
- Fluid Drive Plus shift profiling, compatible with SRAM and Shimano 9sp drivetrains
- Steel rings, engineering polymer spacers, nickel plated finish
- 11-28
- 280g

$5.00 - $9.99
- 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

$2.00 - $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

$49.99 - $64.99
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.

$49.99 - $69.99
Shimano's 105 11-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.

$49.99 - $74.49
- MODEL NO: CS-R7000
- SERIES: SHIMANO 105 R7000 Series
- Average weight: 284 g (11-28T), 304 g (11-30T), 320 g (11-32T), 269 g (12-25T)
- Combination: 11-12-13-14-15-17-19-21-23-25-28T, 11-12-13-14-15-17-19-21-24-27-30T, 11-12-13-14-16-18-20-22-25-28-32T, 12-13-14-15-16-17-18-19-21-23-25T
- Combination name (Group name): 11-28T, 11-30T, 11-32T, 12-25T
- Compatible chain: HG-EV 11-speed/HG-X11
- Speeds: 11-speed
- Spider arm QTY (pcs): 1
- Type: HG-EV

$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
- Gear Teeth: 18T, 20T

$28.99 - $44.99
- MODEL NO: CS-HG400-9
- SERIES: SHIMANO ALIVIO M4000 Series
- Compatible chain: HG 9-speed
- Speeds: 9-speed
- Type: HG

$24.99 - $25.99
- MODEL NO: CS-HG201-9
- SERIES: SHIMANO ALTUS M2000 Series
- Combination: 11-13-15-17-19-21-24-28-32T (bo), 11-13-15-17-20-23-26-30-34T (bn), 11-13-15-17-20-23-26-30-36T (bw), -, -, -, -
- Combination name(Group name): 11-32T (bo), 11-34T (bn), 11-36T (bw)
- Compatible chain: HG 9-speed
- Speeds: 9-speed
- Type: HG

$16.99
- MODEL NO: CS-HG41-7
- SERIES: SHIMANO
- Combination: 11-13-15-18-21-24-28T (ac)
- Combination name(Group name): 11-28T (ac)
- Compatible chain: IG/HG
- Speeds: 7-speed
- Type: HG

$20.99 - $39.99
- MODEL NO: CS-HG50-8
- SERIES: SHIMANO CLARIS R2000 Series
- Compatible chain: CN-HG71
- Speeds: 8-speed
- Type: HG

$29.99 - $34.99
Shimano's Claris cassette is an incredible value for your 8-speed drivetrain. This cassette comes in a range of sizes to suit your riding style and terrain.

$38.99 - $64.99
- MODEL NO: CS-HG500-10
- SERIES: SHIMANO DEORE M6000 Series
- Combination: 11-12-13-14-15-17-19-21-23-25T, 12-13-14-15-17-19-21-23-25-28T, 11-12-14-16-18-20-22-25-28-32T, 11-13-15-17-19-21-23-26-30-34T
- Combination name (Group name): 11-25T, 12-28T, 11-32T, 11-34T
- Compatible chain: HG-X 10-speed/HG 10-speed/CN-HG500
- Speeds: 10-speed
- Type: HG
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