Glory Cycles just posted this along with some photos of various bottom bracket sizes on frames from several manufacturers (shown after the break), and we thought it was worth sharing. It shows which common crankset spindle diameters and bottom brackets work with which standards either directly or with adapters.
Shown here from front to back are: 70mm Italian Threaded Pinarello, BB30 BMC and Look BB65 (which works with their ipack system that use a one-piece crankset with a ~50mm carbon fiber spindle and 65mm outside diameter bearing…it doesn’t refer to the BB width like most of the standards’ names).
