Insane Bicycle Mechanic
Join Date: Mar 2008
Location: other Vancouver
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 119 Post(s)
A crank that works "best" with a 113mm BB will probably work OK with a 115mm BB. You're only moving the crank outboard by 2mm at most- remember, most rear cogs are 5mm apart. Derailleur systems deal with more deflection all the time.
If it's a single-speed, put a spacer under the rear cog and quite worrying.
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