Cassettes & Cogs

12 - 13 - 15 - 17 - 19 - 21 - 24 - 27 - 30 Teeth 304 grams. This is a Harris Cyclery exclusive, designed by Sheldon Brown, based on a Shimano CS-6500 Ultegra cassette. This is intended to provide nice low gears and still preserve reasonably close spacing in the cruising range. It is generally good practice to replace the chain when you replace the cassette. We recommend the SRAM PC-951 chain for use with this cassette. This cassette will index with any Shimano-type 9-speed shifter and any rear derailer. This cassette will fit any Shimano 8/9/10-speed hub.

13 - 14 - 15 - 17 - 19 - 21 - 24 - 27 - 30t 305 grams. This is a Harris Cyclery exclusive, designed by Sheldon Brown, based on a Shimano CS-6500 Ultegra cassette. This is intended to provide nice low gears and still preserve reasonably close spacing in the cruising range, without wasting gears by devoting space to ludicrously high gears. This is intended to be a good match for bikes with traditional "full sized" chainrings. It is generally good practice to replace the chain when you replace the cassette. We recommend the SRAM PC-951 chain for use with this cassette. This cassette will index with any Shimano-type 9-speed shifter and any rear derailer. This cassette will fit any Shimano 8/9/10-speed hub.

Left-hand threaded. To hold a track cog onto a track hub. Hardened threading and extra material make this highly durable to help you go the distance. ISO/English standard size 1.29" x 24 TPI fits most U.S., English, and Asian fixed gear hubs.

Note: This version features two conical spacers that will keep cog more rigid. Place cog between the flared ends of conical spacers. Converts a Shimano 7, 8 , or 9 speed freehub for use as a single speed. This set of spacers allows the single speed sprocket to be easily aligned with the correct chainring.

This Fixed Gear Cog is made for the 3/32" narrow chain. It will work with basically any chain, but will probably run quieter with 3/32" "road" chain. - Hardened Chromoly Steel - Coated to resist rust - Fits standard track hubs.

12,14,16,18,21,26,32 Teeth It is generally good practice to replace the chain when you replace the cassette. -This cassette will index with any Shimano-type 7-speed shifter. -This cassette will fit on any modern Shimano 7 to 10 speed cassette hub -A spacer (see related items) is needed to use a 7 speed cassette on a 9 or 10 speed hub.

11 - 13 - 15 - 18 - 21 - 24 - 28 Teeth It is generally good practice to replace the chain when you replace the cassette. We recommend the SRAM PC-870 chain for use with this cassette. This cassette will index with any Shimano-type 7-speed shifter. This cassette will fit on any Shimano 7-speed hub

12-14-16-18-21-24-28 Teeth It is generally good practice to replace the chain when you replace the cassette. We recommend the SRAM PC-870 chain for use with this cassette. This cassette will index with any Shimano-type 7-speed shifter. This cassette will fit on any Shimano 7-speed hub

11-13-15-17-19-21-24-28t Excellent choice for bikes with "compact" chainwheels (fewer than 48 teeth on the largest) This cassette will index with any Shimano-type 8-speed shifter. 362 grams 11 tooth top gear, not compatible with some older hubs. (Click here for details)

11 - 13 - 15 - 17 - 20 - 23 - 26 - 30t Excellent choice for bikes with "compact" chainwheels (fewer than 48 teeth on the largest) It is generally good practice to replace the chain when you replace the cassette. This cassette will index with any Shimano-type 8-speed shifter.

11-13-15-17-20-23-26-34t Excellent choice for bikes with "compact" chainwheels (fewer than 48 teeth on the largest) It is generally good practice to replace the chain when you replace the cassette. This cassette will index with any Shimano-type 8-speed shifter, but does require a wide-range (touring/mountain) rear derailer.

Current stock is CS-HG51-8 and CS-HG41-8. Sorry, no choice. Excellent choice for bikes with "compact" chainwheels (fewer than 48 teeth on the largest) It is generally good practice to replace the chain when you replace the cassette. This cassette will index with any Shimano-type 8-speed shifter, but does require a wide-range (touring/mountain) rear derailer.

13-14-15-17-19-21-23-26t It is generally good practice to replace the chain when you replace the cassette. We recommend the SRAM PC-870 chain for use with this cassette (See Related Items below). This cassette will index with any Shimano-type 8-speed shifter. 340 grams

11-12-13-14-16-18-21-24-28 Teeth It is generally good practice to replace the chain when you replace the cassette. We recommend the SRAM PC-59 chain for use with this cassette. This cassette will index with any Shimano-type 9-speed shifter. This cassette will fit any Shimano 9-speed hub. 11 tooth top gear, not compatible with some older hubs. (Click here for details) You can check the gearing options out with our On Line Gear Calculator

11 - 12 - 14 - 16 - 18 - 21 - 24 - 28 - 32 Teeth It is generally good practice to replace the chain when you replace the cassette. We recommend the SRAM PC-59 chain for use with this cassette. This cassette will index with any Shimano-type 9-speed shifter, but does require a wide-range (touring/mountain) rear derailer. This cassette will fit any Shimano 9-speed hub. 11 tooth top gear, not compatible with some older hubs. (Click here for details) 287 grams. You can check the gearing options out with our On Line Gear Calculator

11 - 13 - 15 - 17 - 20 - 23 - 26 - 30 - 34 Teeth It is generally good practice to replace the chain when you replace the cassette. We recommend the SRAM PC-59 chain for use with this cassette. This cassette will index with any Shimano-type 9-speed shifter, but does require a wide-range (touring/mountain) rear derailer. This cassette will fit any Shimano 9-speed hub. 11 tooth top gear, not compatible with some older hubs. (Click here for details) 290 grams. You can check the gearing options out with our On Line Gear Calculator

THE HG400 MODEL IS REPLACING THE HG61 12 - 14 - 16 - 18 - 21 - 24 - 28 - 32 - 36 Teeth Note: Shimano recommends that this cassette is only compatible with Shimano Shadow type rear derailleurs. We've run it successfully with a basic Deore (non-shadow design) with a longer (20mm) B-tension screw all the way in. You might have to reverse it for more adjustment. If this cassette is being used on a 29er Mountain bike, it must be used in conjunction with the Shimano M629/M529 29er hubs. Designed for 29ers but is also a new option for touring bikes! No need to replace your double crankset when you have a 36t bailout gear! This cassette will fit any Shimano 9-speed hub.

Shimano Tiagra level 10 speed cassettes. Made in Japan. Will fit all Shimano 8-,9-,10- and 11-speed* hubs. *1.85mm spacer required to fit an 11-speed hub.

- 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

11-36 10 speed The ultimate 10 speed touring cassette! And it's affordable too! Note: You can use traditional Deore RD-M590 rear derailleur by replacing the B tension screw with a 4mm x 20mm allen head screw (See Related Items). Fits all Shimano 8-,9- and 10-speed hubs.

12 - 13 - 14 - 15 - 17 - 19 - 21 - 24 - 27 Teeth This cassette will work with any 9-speed derailluer system. 224 grams You can check the gearing options out with our On Line Gear Calculator

NEW! 11-28 10 speed Ultegra 6700 series 10 speed Cassette 11,12,13,14,15,17,19,21,24,28 Fits all Shimano 8-,9- and 10-speed hubs.

4.5 mm spacer to fit a 7-speed cassette onto a hub made for 8-, 9-, or 10-speed cassettes. If your cassette has bolts holding the sprockets together, you will need to remove the bolts. They are not necesssary, only intended as a convenience for rapid cassette swaps.