Originally Posted by
Pantani98
Shopping around for some DA cranks and BB-7710 bottom bracket. Carleton probably knows the answer right off the bat with his Tiemeyer collection, but what size bb do I need for my Tiemeyer Signature track frame? I've seen posts of 68x109.5 and 68x110. Just want to make sure I get the correct size. Thanks!
When I was looking at a BB for my DA cranks the conclusion I read is that the difference between 109.5 and 110 is nominal, which makes sense if you think about how large a 1/2 mm is. IIRC the track dura ace and maybe the road dura ace are labeled a different width than the road ultegra (I can't be bothered to remember the numbers), but as a practical matter they're the same.