Will I be alright using a medium cage mech on a 1x10 with an 11-40 cassette. I think so but just double checking.
If the max tooth of the mech is 40t or more, and if the chain capacity equal to or greater than the result of your largest cog subtracting your smallest, then yes you'll be fine
@Howard started
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Will I be alright using a medium cage mech on a 1x10 with an 11-40 cassette. I think so but just double checking.