If you mean for a BB30 bottom bracket
I don't :)
I'm on about the girth
Those extra 6mm really make you stiffer.....
Also, unless you’re on a trek with a BB92 or whatever silliness they use, then there’s a BB for pretty much every bottom bracket standard that will accept a girthier length of 30mm...
@Dick started
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I don't :)
I'm on about the girth