Cassettes/Freewheels

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

8-speed SIS compatible freewheel

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

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.

- Shimano 105 R7000 Series CS-R7000 11-speed cassette - Average weight: 284 g (11-28T), 304 g (11-30T), 320 g (11-32T), 269 g (12-25T) Combinations: - 11 – 28T: 11-12-13-14-15-17-19-21-23-25-28T - 11 – 30T: 11-12-13-14-15-17-19-21-24-27-30T - 11 – 32T: 11-12-13-14-16-18-20-22-25-28-32T - 12 – 25T: 12-13-14-15-16-17-18-19-21-23-25T

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

- Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed - Drivetrain Speeds: 8

- 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 Deore M6000 CS-HG500-10 10-speed cassette. Combinations: - 11 – 25T: 11-12-13-14-15-17-19-21-23-25T - 12 – 28T: 12-13-14-15-17-19-21-23-25-28T - 11 – 32T: 11-12-14-16-18-20-22-25-28-32T - 11 – 34T: 11-13-15-17-19-21-23-26-30-34T

• 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

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 HG-800 11-speed cassette. - High-performance gear combinations provide superior rider choice - With hub body for MTB to fit a variety of bikes from MTB to road - Average Weight: 335 grams

Shimano's 11-speed SLX cassette features the same computer-designed shift profiles that have made Shimano shifting synonymous with speed and accuracy. - Series: SLX - Average Weight: 467g

Shimano's Ultegra 10-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'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.

- High-performance gear combinations provide superior rider choice - Hub body to fit a variety of bikes from MTB to road - Model Number: CS-HG800-11 - Series: Shimano - Average Weight: 335 grams

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. - X-Range gearing gives you more range and a smoother gear progression, so you’re always in the right gear - MINI CLUSTER construction reduces weight and increases durability - Designed to work with an XDR driver body 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 - 10-36T: 10, 11, 12, 13, 15, 17, 19, 21, 24, 28, 32, 36

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'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's 1070 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, a lightweight aluminum lockring, 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's PG-1130 11-Speed Cassette is constructed of heat-treated steel cogs and boasts SRAM's PowerGlide tooth profiles and shift ramps for quick, positive gear changes. This excellent cassette also sports an aluminum spider construction for a maximum stiffness-to-weight ratio, a durable steel lockring, and comes in three wide ranges to suit your riding style.

SRAM's 1170 11-Speed Cassette is constructed of light, durable materials and boasts SRAM's PowerGlide tooth profiles and shift ramps for quick, positive gear changes. This excellent cassette also sports a semi-spider construction for a maximum stiffness-to-weight ratio, a lightweight aluminum lockring, and is available in three ranges to suit all your riding.

Ride anywhere with the wide-range PG-1230, 11- to 50-tooth Eagle cassette. The NX cassette gives riders every bit of the climbing range that the Eagle ecosystem affords with a simple upgrade to splined-drive body wheels. The PG-1230 is the only Eagle cassette designed to be durable enough to withstand the increased demands of E-MTB applications and a perfect solution to heavy-duty use and abuse. Eagle technology provides an expanded, optimum gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents. Eagle is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. SRAM guarantees this performance when Eagle drivetrains are used as a complete ecosystem. For additional information, please contact your SRAM Sales Contact. - Compatible with a splined driver body - Wide 11-50T gear range—a perfect fit for any ride - Optimized gear steps across entire range - 11-50T: 11, 13, 15, 17, 19, 22, 25, 28, 32, 36, 42, 50

When it's time to replace your old 8-speed cassette, check out SRAM's PG-850. Its steel construction and SRAM's PowerGlide technology combine to deliver miles of solid shifting and outstanding durability.

When it's time to replace your 9-speed cassette, check out SRAM's PG-950 cassette. It delivers solid shifting and durability ride in and ride out for your 9-speed rig.

SRAM's PowerGlide PG-820 Cassette is a fine 8-speed cassette. It features steel cogs with SRAM's DuraBlast technology for smooth, precision shifting and excellent durability.

SRAM's PowerGlide PG-830 Cassette is a quality 7-speed cassette. It boasts durable chrome-plated steel cogs with SRAM's shifting technology that includes optimal tooth profiles and ramps for fast, precision shifts every time.

Full Pin technology uses eleven lightweight, stamped steel cogs held together with 123 high-strength stainless steel pins. The result: a cassette that’s light, durable and equipped with SRAM’s super wide 10-42T gear range that’s a perfect fit for any ride. The open design aids in mud clearance, giving you cleaner shifting performance and longer component life. • Super wide 10-42T gear range is a perfect fit for any ride • Optimized gear steps across entire range • XD driver body creates more stable hub connection