Subject: RE: Cassette They're very close.
The 11-23 gives you a bit more fine adjustment of cadence. If you have a very narrow range of cadence where you perform well, you might miss having a tiny jump between two gears rather than just having a small jump between two gears.
The 11-25 gives you just a skosche more of a "granny" gear for going up hills. Again, not a gigantic difference. It is not as if people in the flatlands use 11-23 and switch to 11-25 when they go to the Himalayas. They're both relatively narrow range cassettes.
11-32 would be much more noticeable, unhappily if you're cadence-picky and happily if you're climbing big hills.
Chain gauges are cheap, or you can use a clearly marked metal ruler to keep track of chain wear. Or maybe just ride by your LBS and have them check it every yay often. Bikes are so much happier when the chain is the right length. Nicer to ride and stuff lasts longer. Edited by alath 2017-02-21 12:19 AM
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