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Cassettes/Freewheels

Surly Track Cog
$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.
Sturmey-Archer 3-Speed Sprocket And Circlip
$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
Sturmey-Archer 3-Speed Sprocket And Circlip
$4.99
- 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
Shimano 105 CS-HG700 11-Speed Cassette
$87.99
- MODEL NO: CS-HG700-11 - SERIES: SHIMANO 105 R7000 Series - Average weight: 379 g - Combination: 11-13-15-17-19-21-23-25-27-30-34T - Combination name(Group name): 11-34T - Compatible chain: HG-EV 11-speed/HG-X11 - Speeds: 11-speed - Spider arm_QTY (pcs): 1 - Type: HG-EV
Shimano Alivio 9-Speed Cassette
$28.99 - $35.99
- MODEL NO: CS-HG400-9 - SERIES: SHIMANO ALIVIO M4000 Series - Compatible chain: HG 9-speed - Speeds: 9-speed - Type: HG
Shimano Altus 9-Speed Cassette
$26.99 - $27.99
- 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
Shimano CS-HG41 7-Speed Cassette
$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
Shimano CS-MX66 DXR - Single BMX Sprocket
$8.99
Built for the demands of BMX racing, the MX66 single speed cassette cogs are compatible with SHIMANO MX70, MX66 BMX hubs as well as other SHIMANO-compatible hubs. - Single sprocket: 14/15/16/18T - Chain size: 1/2-inch x 3/32-inch - Speeds: Single - Single sprocket for FH-MX70
Shimano Claris 8-Speed Cassette
$26.99
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.
Shimano Deore 10-Speed Cassette
$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
Shimano Deore CS-HG50 10-Speed Cassette
$55.99
- MODEL NO: CS-HG50-10 - SERIES: SHIMANO DEORE M6000 Series - Combination: 11-13-15-17-19-21-24-28-32-36T (bk) - Combination name (Group name): 11-36T (bk) - Compatible chain: HG-X 10-speed - Speeds: 10-speed - Spider arm QTY (pcs): 1 - Type: HG
Shimano Deore XT 11-Speed Cassette
$99.99 - $111.99
• Steel construction on all but the largest aluminum gear • Nickel-plated finish for corrosion and wear resistance • Dyna-sys 11-speed cassette with "Rhythm step" gearing for closer gear ratios and smoother shifting performance • Fits Dyna-sys 11-speed and current Shimano 9/10-Speed MTB hubs • The largest cog (40t) is positioned inboard and above the drive-side flange • Hubs with tall drive-side flanges may not be compatible due to spoke interference
Shimano Deore XT Dyna-Sys 10-Speed Cassette
$68.99
Reliable, perfect shifting awaits with Shimano's Deore XT Dyna-Sys Cassette. It features chrome-plated steel sprockets mounted to two aluminum carriers for an ideal blend of durability and low weight. Closer gear ratios in the middle of the cassette ensure you'll have the perfect gear for the trail's ups and downs. Plus, the cogs are ramped and machined for flawless, lightning-fast shifts.
Shimano Deore XT M770 9-Speed Cassette
$71.99
Shimano XT CS-M770 9-Speed Cassette - Aluminum carrier reduces weight and increases rigidity - Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed - Drivetrain Speeds: 9 - Weight: 323 grams
Shimano Dura-Ace 9100 11-Speed Cassette
$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
Shimano SLX Dyna-Sys 10-Speed Cassette
$49.99
Shimano's SLX Dyna-Sys 10-Speed Cassette features chrome-plated steel sprockets mounted to an aluminum carrier for an ideal blend of durability and low weight. Closer gear ratios in the middle of the cassette ensure you'll have the perfect gear for the trail's ups and downs. Plus, the cogs are ramped and machined for flawless shifts with the 10-speed chain and Shadow rear derailleur (both sold separately).
Shimano Sora 9-speed Cassette
$34.99
Shimano's Sora cassette is an incredible value for your 9-speed drivetrain. Crisp shifting and a low weight keep your mind focused on having fun on your bike and not adjusting it. This cassette comes in a range of sizes to suit your riding style and terrain.
Shimano Tourney 7-Speed Cassette
$15.99
- MODEL NO: CS-HG200-7 - SERIES: SHIMANO TOURNEY - Combination: 12-14-16-18-21-24-28T (bm), 12-14-16-18-21-26-32T (bp) - Combination name (Group name): 12-28T (bm), 12-32T (bp) - Compatible chain: IG/HG - Speeds: 7-speed - Type: HG
Shimano Track Cog
$41.00
You've got to have the right ratio for the track, and Shimano's Dura-Ace cogs come in a range of tooth counts so you can always be prepared. Manufactured from durable chromoly steel, each cog is machined to run perfectly straight.
Shimano Ultegra 6600 10-Speed Cassette
$76.99
Shimano Ultegra CS-6600 10-Speed Cassettes - Ultegra CS-6600 cassettes with a 13-16-tooth first-position cog are not compatible with Dura-Ace FH-7800 hub or WH-7800 wheel - Compatible with all 10- and 9-speed Shimano hubs except for 13-16-tooth first position cog cassettes which are not compatible with DA FH-7800 hubs or WH-7800 wheels
Shimano Ultegra 9-Speed Cassette
$53.99
Shimano's Ultegra 9-Speed Cassette delivers pro-level shifting and durability. The computer-enhanced tooth shapes and tough cogs mean you can shift quickly, precisely and smoothly even under pressure.
Shimano XTR 11-Speed Cassette
$307.99
• Four carbon carriers and six titanium cogs for reduced weight • Nickel-plated finish for corrosion and wear resistance • Dyna-sys 11-speed cassette with "Rhythm step" gearing for closer gear ratios and smoother shifting performance • Fits Dyna-sys 11 and current Shimano 9/10-Speed MTB hubs • The largest cog (40t) is positioned inboard and above the drive-side flange • Hubs with tall drive-side flanges may not be compatible due to spoke interference • Range: 11-40
Shimano XTR 12-Speed Cassette
$389.99
- MODEL NO: CS-M9100-12 - SERIES: XTR M9100 Series - Average weight: 357g (10-45T), 367g (10-51T) - Combination: 10-12-14-16-18-21-24-28-32-36-40-45T, 10-12-14-16-18-21-24-28-33-39-45-51T - Combination name (Group name): 10-45T, 10-51T - Compatible chain: CN-M9100 - Speeds: 12-speed - Spider arm QTY (pcs): 1 - Type: HYPERGLIDE
SRAM Eagle 12-Speed Cassette
$449.00
Take a quick look at the X-DOME Eagle cassette. The last dangling shred of an argument in favor of a mountain bike front derailleur is now officially dead. Designed for use with SRAM's proven, reliable XD driver body, this 12-speed, 10- to 50-tooth cassette offers an optimal 500-percent gear range at a considerably lighter weight than 2x systems. It carries with it the X-DOME architecture, which, independent tests have concluded, yields the strongest cassettes on the market. New shifting characteristics improve both, inboard and outboard shifting, as well as chain retention.
SRAM Force XG-1270 Cassette
$185.00
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 SRAM's 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 Cassette Cogs: - 10-26t: 10, 11, 12, 13, 14, 15, 16, 17, 19, 21, 23, 26 - 10-28t: 10, 11, 12, 13, 14, 15, 16, 17, 19, 21, 24, 28 - 10-33t: 10, 11, 12, 13, 14, 15, 17, 19, 21, 24, 28, 33
SRAM PG-1030 10-Speed Cassette
$62.99
SRAM's PG-1030 10-Speed Cassette is a great choice. It's constructed of light and durable materials and boasts SRAM's PowerGlide tooth profiles and shift ramps for quick and positive gear changes every time. This trick cassette is available in four configurations perfect for riding off road, including one with a 36-tooth largest cog for super-easy climbing.
SRAM PG-1050 10-Speed Cassette
$72.00 - $90.99
SRAM's 1050 10-Speed Cassette is a great choice. It's constructed of light and durable materials and boasts SRAM's PowerGlide tooth profiles and shift ramps for quick and positive gear changes every time. This trick cassette also sports a semi-spider construction for a maximum stiffness-to-weight ratio and is available in myriad configurations to suit all your riding. There are even models with 36-tooth largest cogs for super-easy climbing.
SRAM PG-720 Cassette
$31.00
No mixed messaging or compromises here. The GX DH cassette was built with only one purpose in mind—exploiting gravity to its fullest lap after lap. This downhill-optimized 7-speed cassette provides gear steps that give each shift more purpose, and its compact design allows more spoke clearance. It’s a full-on, dedicated SRAM 1x cassette for gravity that lets you keep some money for a lift ticket. GX DH—Get Some. - The PG-720 cassette is an integral part of the SRAM 1x DH drivetrain system - This is the most affordable full-featured, dedicated 1x DH cassette in the industry - Fewer cogs allow for a faster transition from starting cog to highest cog - More rear wheel clearance around spokes - Fully compatible with the SRAM X01 DH drivetrain - Splined driver body compatible - Weight: 224 grams - Gear-Ratio:11 – 25T - Speeds: 7 - Recommended Group: GX DH