How to determine the wear level of a MTB cassette?

How to determine the wear level of a MTB cassette?

This question comes up quite often, but unfortunately there's no single answer. There is, mountain bike cassettes cassettes don't have wear indicators, and the design of the teeth, which varies from brand to brand, makes it difficult to create a tool for monitoring wear.

Nevertheless, we're going to try and help you by taking a look at the different methods available to judge wear.

  • The first is as simple as it is obvious: gears are unstable when the material is too worn. If you've just replaced your mountain bike chain  chain and the rest of your mountain bike transmission is in good condition, but the gears don't shift properly, then the cassette definitely needs replacing.
  • The second requires a bit of an eye. Look at the shape of the teeth on a new cassette, and you'll see that almost all of them end with a more or less bevelled tip. If the teeth of your cassette are worn to the point of ending in a point, it's high time to replace it.
  • The third is a manufacturer's recommendation: replace the cassette every two chains.

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