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Shimano Cassette gear clusters from Harris Cyclery

Do you have a freewheel or cassette?          This site includes a more detailed technical page about Shimano Cassettes.

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7-speed Cassettes | 8-speed Cassettes | 9-speed Cassettes | 10-speed Cassettes

Chains | Spacers | Thread-on Freewheels

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7-speed:

Standard Shimano 7-speed Cassettes:
Part
Number
SeriesPriceSprockets
CS725HG-41
Silver
buy button11131518212428
CS727HG-20
Black
buy button12141618212428

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Spacers

4.5 mm spacer to fit a 7-speed cassette onto a hub made for 8-, 9-, or 10-speed cassettes. CS004 buy button

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8-speed:

Shimano 8-speed Cassettes:
Part
Number
SeriesPriceSprockets
CS819HG51-8buy button1113151719212428DESCRIPTION
CS823HG51-8buy button1113151720232630DESCRIPTION
CS825HG51-8 buy button1113151821242832DESCRIPTION
CS827HG41-8 buy button1113151720232634DESCRIPTION
CS832HG50-8buy button1314151719212326DESCRIPTION

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9-speed:

Note: Shimano 8- and 9- and 10-speed cassettes/hubs are fully interchangeable for wheels with steel Freehub bodies.
The only parts that are different in any important way between the 8- and 9- and 10-speed systems are the shift control levers.

The Harris Cyclery Custom 9-speed Cassettes are Gone Forever!

Standard 9 Speed Shimano Cassettes
Part
Number
SeriesPriceSprocketsWeight
CS9504HG-400buy button111213141618212428N/A
CS903HG-400 buy button111214161821242832N/A
CS906HG-400buy button111315172023263034N/A
CS915HG-400buy button111315172023263036N/A
CS916AHG-400
12-36t
buy button121416182124283236Designed for 29ers.
Makes a great touring cassette!
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10-speed:

Note: Shimano 8- and 9- and 10-speed cassettes/hubs are fully interchangeable for wheels with steel Freehub bodies.
The only parts that are different in any important way between the 8- and 9- and 10-speed systems are the shift control levers.


Standard Shimano 10 Speed Cassettes
Part
Number
SeriesPriceSprocketsWeight
CSX130HG-500buy button 12131415171921232528N/A
CSX134CS-6700buy button 12131415171921242730245gr
CSX133HG-500buy button 11121416182022252832N/A
CSX133AHG-500buy button 11131517192123263034N/A

The Ultimate 10-Speed Touring Cassette!

Designed for Shimano's Shadow technology Mtn Bike components, This cassette can be used on a touring bike
with a traditional Deore MTB rear derailleur by replacing the B tension screw with a 4mm x 20mm bolt.
We tested the set-up on a Gunnar with 105 STI 5600 levers and it shifted flawlessly!

Part
Number
SeriesPriceSprocketsWeight
CSX147Deore
HG-50
buy button 11131517192124283236N/A

11 Speed Cassettes

We do not sell 11 speed cassettes online.

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11 tooth sprockets

Cassettes that feature an 11 tooth sprocket are intended to fit "C" (Compact) hub bodies only. The spline grooves in the 11 do not run all the way through (it wouldn't be strong enough if they did.)

These cassettes can be fitted onto older bodies two ways:

  • If you install a 1 mm spacer before the cassette, the cassette will fit, but the cassette will then be 1 mm farther to the right than it is intended to be. With most bikes, this won't be a problem, but if your frame has very tight clearance, or if you want to be able to interchange multiple rear wheels without having to re-adjust the derailer, this could be a problem.

  • You can convert an older Freehub body to work with "C" type cassettes by grinding off the outer corners of the splines so that the 11 can fit on far enough to hold the rest of the cassette in place.
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Chains

It is generally good practice to replace your chain when you install a new cassette. We particularly recommend SRAM (Formerly Sachs (Formerly Sedis)) chains. Click here for details.
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