Sorry, I know this question has probably come up at least a hundred times, but I'm too lazy and stupid to do a search.
Do you think it's possible to install an outboard bottom bracket (a Dura Ace external, 7900) on a eccentric BB shell (a Globe Live 3) ?
I love my belt-driven Globe Live 3, but the OEM cranks that came on it flare out and when I do any lively ride over 20 miles, it bugs my knees.
I've got a spare 7800 crankset & outboard bottom bracket. And Gates carbon belt drives recently released a five-pronged belt sprocket with a 130 BCD that will indeed mount on my 7800 crankset. And I feel pretty sure I can find or finesse spacers that will keep the belt in a straight enough line.
But are there any pitfalls to screwing an outboard bottom bracket onto a concentric bottom bracket shell that I'm unforseeing?
This is not my bike, but it's the closest Google could come up with right now:
