A cluster of sprockets, commonly 5 to 11 of them, attached to a freehub on the rear wheel.

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3
votes
1answer
454 views

Chainring and cassette compatible?

I've got a 20 year old Cannondale mountainbike (model # scratched off long ago). It's been used as a daily commuter for a few years and for a couple long trips. I've been told that the original ...
3
votes
1answer
503 views

Good 9-speed cog configuration for touring and which low-cost quality cassettes?

Alert: this cassette conf cannot be used in all touring locations because of poor support. I use it only in 1st world countries. The largest cog at the back is about 12-14cm. The length from ...
11
votes
1answer
940 views

Do I need to change my cassette if I can't see any wear?

I bought a new road bike with Campag Athena 11 speed in March last year. To the end of Jan it had covered 9000km. In all that time I hadn't changed the chain because I don't have the Campag tool, and ...
6
votes
4answers
4k views

How much distance can I put on drivetrain components?

I figure the jockey wheels on my derailer will last nearly forever, but what about the rest: cassette, chainrings, and chain? How many miles, kilometers, or furlongs do they normally last? I know ...