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I want to use a bike fitted with SRAM Eagle NX groupset on an indoor trainer, and to have a complete wheel including cassette for use on the trainer.

Would it make sense to use another 11 or 12-speed cassette instead of the current PG-1230 cassette ? Is it possible that it won't be as compatible with the chain, and make the ride less smooth ?

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At the very least you'll need to match the same cog count to your shifter. In other words, an 11-spd shifter necessitates an 11-spd cog. You don't need to match the level (e.g., NX vs X01). You probably want to stick with the same brand for optimal shifting, but that's a lower priority.

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  • Why would you even need to shift at all on an indoor trainer? Nov 10, 2022 at 21:16
  • @leftaroundabout on a "dumb" trainer: to get different resistance level. on a "smart" trainer to cope with a hill in your virtual world
    – Paul H
    Nov 10, 2022 at 23:02

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