Are you going to off road on this? 42t should be ok no? I spend most of the time in the smaller half of the cassette with 42t .. kinda wish had 44t (or 11-32). The lowest gear is lower than my road bike 34-25.
FWIW, I usually have 11-28 paired with 42t, which was fine for everything (and that's on a touring bike).
@edscoble started
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Are you going to off road on this? 42t should be ok no? I spend most of the time in the smaller half of the cassette with 42t .. kinda wish had 44t (or 11-32). The lowest gear is lower than my road bike 34-25.