Cassettes/Freewheels

Shimano Dura-Ace R9100 Cassette Spacers

- 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

Dimension Steel Cogs are splined for BMX and singlespeed hub compatibility. - Steel with chrome finish - Cogs are splined for Shimano BMX and singlespeed hub compatibility - Compatible with 1/2-inch and 1/8-inch chains

A range of sturdy, affordable cogs is an essential part of a single speeder's quiver. Origin-8's Single Speed Cog is available in 13, 14, 16 and 18T sizes is chrome plated to resist rust and increase longevity. It's designed for Shimano/SRAM style cassette bodies and is made with splined, hardened chromoly steel. Now you can easily tailor your gearing for the terrain.

Steel 1mm spacer fits Shimano cassette bodies - Great for 10 sp cass on 8/9 sp hubs - Also for many other fit applications

Ready to change your gearing to fit your riding style and your city? The Pure Fix Cycles Fixed Cogs are the answer! Made of forged alloy, they're light enough to not hold you back and durable enough to last for all those rides to come!

Shimano Cassette Lockrings

- 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

6-speed freewheel 14-28T SHIMANO Equivalent MF-TZ20

Shimano Cassette Lockrings.

Shimano Cassette Lockrings

- 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

- 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

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

A range of sturdy, affordable cogs is an essential part of a single speeder's quiver. Origin-8's Torq Lite Single Speed Cog is available in wide range of sizes so you can easily tailor your gearing for the terrain. It's designed for Shimano/SRAM style cassette bodies, features a wide, flex-free base, and is made from hardened chromoly steel.

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.

5-speed bronze color freewheel

- 7-speed SIS compatible Freewheel - Shimano Equivalent: MF-TZ21

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.

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

SRAM's PG-730 7-Speed Cassette is the perfect replacement for your worn-out gears. It features a rugged steel construction for awesome durability and SRAM's PowerGlide technology for smooth, precise shifts throughout its 12-32 tooth range.

• Steel • 7-speed

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

Origin-8's Ultim8 Single Speed Cassette Cog lets you have your ride any way you like it. This handy cog is dual use — a single speed cog that fits over a Shimano/SRAM freehub body or a fixed cog that bolts on in place of a 6-bolt brake rotor. A wide, zero-flex base design made of forged chromoly steel provides instant power transfer. Enjoy the Ultim8 ride whichever way you like it.

- 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

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.

• Converts a cassette hub to a single speed • 8 spacers included in various sizes to adjust chain line • Available in black or red anodized 6061 aluminum • Fits Shimano style cassette bodies • Conical spacers for increased cog stiffness

8-speed SIS compatible freewheel

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.

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