When I went from 38mm 650b to 42mm 650b
Do you mean 38mm 700c to 42mm 650b?
Nope, both 650b.
The difference was that obvious to me.
In a good or bad way? Didn't you settle on 38c on your oak?
@edscoble started
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Do you mean 38mm 700c to 42mm 650b?