Either 42/28 if I use mid/inner or 44/30 if I'm using the outer/mid, probably prefer the latter as it'll work out slightly cheaper for me
If you go for outer/mid you might be able to replace your archaic 4-spline BB with a similar one but narrower, for a narrower Q, if you have clearance.
Plenty of clearance and already have a narrower BB I've been meaning to fit, seems like it should work out alright!
@Emyr started
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Either 42/28 if I use mid/inner or 44/30 if I'm using the outer/mid, probably prefer the latter as it'll work out slightly cheaper for me