Cassettes/Freewheels

Tested extensively by the Dutch National BMX Team, Damien Godet, Kory Cook, and numerous other elite racers, Box Two™ Freewheels combine durability with lightning-fast engagement. They feature nine, super durable pawls and are available in one of three choices -- 16, 17, or 18 teeth. To install, use the Park Tools™ FR-6 or other installation tool designed for single-speed freewheels with four notches that are approximately 32mm across measured inside to inside and 40mm outside to outside. FEATURES - 9 Pawls 108 [3.3°] Points of Fast Engagement

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

- 10-speed cassette sprocket - Offers a wide range of gearing options. - Lightweight sprocket carrier, it delivers smooth gear steps and precise shifting. - Ride anywhere with smooth and precise HG shifting

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.

8-speed SIS compatible freewheel

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

A range of sturdy, affordable cogs is an essential part of a fixie rider's quiver. Origin-8's Track Cog is available in a variety of sizes and is chrome plated to resist rust and increase longevity. Now you can easily tailor your ride for the terrain. And you can choose between 1/8 and 3/32-inch chain widths.

The Acolyte 8-speed cassette gives you all the range you need to challenge yourself.  Whether you’re climbing the Cascades or the neighborhood sledding hill, all you have to think about is where to put the bike – Acolyte will take care of the rest.  And yes, it works with a standard HG freehub body and a normal 8-speed chain.

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

- Optimized for electronic shifting and featuring X-Range gearing technology for AXS groups - Features at least five one-tooth jumps for a smoother gear progression - 10-tooth start helps provide a wider gearing range - XDR driver body required - MINI CLUSTER construction reduces weight and increases 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.

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.

The XG-1299 cassette completes the expression of the world's most accomplished and sought after bikes. Designed for use with our proven, reliable XD driver body, this 12-speed cassette offers a massive gear range. In independent tests, the X-Dome architecture is proven to yield the strongest cassette on the market. New shifting characteristics improve both inboard and outboard shifting as well as chain retention. - SRAM’s cassette manufacturing technology provides the greatest durability and lightest weight - All-new shifting features create a smoother, quieter system with enhanced inboard and outboard shift performance - XD driver body compatible Cogs - 10 – 50T: 10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 50 - 10 – 52T: 10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 52

SRAM's E-BLOCK shifting technology is a fundamental redevelopment of external drivetrain shifting. On the E-BLOCK cassette, the chain has a defined link position on each cog. Cog architecture has been engineered to work with both inner and outer links of the chain, which allows extremely refined shifting for both inboard and outboard shifts. The result is precise and robust shifting performance in any situation, even with full motor support. - 11 – 48T, 8-speed cassette machined from case-hardened tool steel - Ideal mid-ship motor gear range - Increased chain wrap on climbing cogs - Symmetric shifting geometry allows fast, precise gear shifts - Optimal inboard and outboard shifting performance - The big steps between cassette cogs is a completely new cassette technology engineered specifically for the demands of E-MTB - Non XD driver body compatible - Gear Ratio: 11 – 48T - Recommended Group: EX1 - Cogs: 11, 13, 15, 18, 24, 32, 40, 48

It's the final piece in the drivetrain puzzle, and paired with SRAM RED eTap and RED rear derailleurs, SRAM's XG-1190 cassette delivers ultra-fast, ultra-quiet shifts that will always put you in the right gear. - Compatible with SRAM RED eTap, RED, Force, Rival, Apex - Weight: 151 grams (11 – 25T), 185g (11 – 30T), 196g (11 – 32T) - Material High grade tool steel cog cluster, Heat treatment process, Heat treated aluminum lowest range cog, Elastomer rings - Speeds: 11 Gear Ratios: - 11 – 25T: 11,12,13,14,15,16,17,19,21,23,25 - 11 – 26T: 11,12,13,14,15,16,17,19,21,23,26 - 11 – 28T: 11,12,13,14,15,16,17,19,22,25,28 - 11 – 30T: 11,12,13,14,15,17,19,21,24,27,30 - 11 – 32T: 11,12,13,14,15,17,19,22,25,28,32

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

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.

The Shimano SLX CS-M7100 12-speed cassette is optimized with rider-tuned gear combinations for MTB excellence. - Advanced shifting performance provides the confidence to enjoy any trail - Light and stiff construction reduces cassette inertia resulting in faster acceleration and increased chain security - HYPERGLIDE+ technology provides better chain engagement, stronger retention, and smoother pedaling with greater power and confidence over rapidly changing terrain - Designed with a Shimano Micro Spline body that features smaller and more widely distributed splines to limit cog damage on freehub - The CS-M7100 cassette meets durability requirements for E-MTB applications - Cassette Body Type: Shimano Micro Spline - Drivetrain Speeds: 12 - Range: 10-45 - Designed for ebike: Yes - Color: Silver/Black - Defined Color: Silver

- For IG/HG chains - Zinc phosphate finish - Enlarged sprocket window design for ligtherweight - Refer to Documents and links to find the right product

- Range: 13T x 1/8"

Sometimes less is more. With 10 speeds, an 11-48T range, and evenly spaced gear steps, the ADVENT X cassette allows riders to shift less often to find the right gear, while still having enough range to ride what they want. Fewer cogs also means less weight and a wider chain for better mud shedding. It even fits on standard 10-speed freehub bodies so you don't need to buy new wheels for no reason. In short, it's everything you want in a high-end drivetrain. - 11-48T range with even gear steps for predictable gear changes - Hardened steel cogs are optimized for eBike compatibility - ED black with anodized surface finish - Continuously forged precision cogs

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

Dimension Freewheels are excellent drivetrain component replacements. With smooth shifting performance and durable construction, they'll help breathe new life into older bikes. - A must-have in any bicycle service department - One-piece design - Shimano index compatible - Works with most friction shifters - Suitable for use with e-bike drivetrains

- 8 speed wide range - 11-40t - Steel spider

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

The XX Eagle T-Type 12-Speed 10-52t cassette is a major reason why Eagle Transmission offers one of the best-ever inboard and outboard shifting performance under load. Thanks to its full X-Sync design, the harder you pedal, the better it shifts. Literally. Engineered as integrated and interdependent transmission components, the XX Eagle Transmission Cassette and derailleur contact directly, ensuring perfect alignment on every bike. - From its massive 520% gear range, the 52 tooth cog steps down with improved gear progression with 44 and 38 tooth cogs in the low end (compared to the Eagle drivetrain 10-52-tooth cassette) - Lasts far longer and delivers more precision with the use of less extreme chain angles throughout the entire range - Featuring a clearly marked Setup Cog, install is both simple and fool-proof - Utilizes hardened tool steel machined X-Dome design for the cluster and stamped steel 38t and 44t cogs are pinned to the lighter weight aluminum 12th gear (Spider Cog) - 55mm chainline compatibility for more moderate chain angle, longer wear and greater precision - Utilizes well accepted and broadly available XD driverbody

With its wide range, SRAM's XX1 11-Speed X-Glide Cassette gives you a clean, simple 1x11 drivetrain. It has a 10-42 tooth spread that gives you pretty much the same gearing as 2- and 3-ring setups without the REDundancy, shifting issues and weight penalty. Yes, you can still spin up your hardest climbs. A key thing to note, is that even with the huge range, there are no huge jumps or dips in the gearing, so your cadence and pedaling stay consistent as you move up and down the entire cassette. The wide open design makes it incREDibly lightweight and aids in mud clearance, giving you cleaner shifting and longer component life. It requires an XD driver hub freebody (sold separately) that further REDuces your wheel's weight and improves the hub connection. Welcome to the future of mountain bike drivetrains.

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

Dimension cassettes feature Shimano/SRAM compatible spacing, precise fitment for crisp shifting, and easy installation with standard tools. They're a perfect replacement for worn out cogs. Constructed of steel cogs and lock ring. Cassette Cogs: - 11 – 28T: 11-12-14-16-18-21-24-28 - 11 – 32T: 11-12-14-16-18-21-26-32