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Who said what now? dafuq is BB30a? What happened to plain ol' BB30? Datum is BB86 isn't it? I can't keep track of all this shit. I already have BB30 on my Shiv, Tarmac, etc.
hippy-
http://wheelsmfg.com/bb30a-tech-info
The BB30a is similar to the BB30 standard, but the frame BB shell is 5mm wider on the non-drive side. BB30a system uses thin spacers and/or a wave washer between the bearings and the crank arms to take up any slack and micro-adjust the chainline of the crank.
amey
Yep and BB30a