Originally Posted by
FOBx530
I was wondering would it be a good idea to use a ES-25 bottom bracket? except they don't have 109.5, I think the shortest they have are 113, would this be a problem?
The length isn't the issue, the design is. There were two "Octalink" configurations, V1 and V2. V1 was used on road cranks; Dura Ace, Ultegra and 105 and, IIRC, XTR. V2 was used on the lower MTB groups and one low-line road group.
So, your DA crank needs a V1 bb and the ES-25 is a V2.
Licktons has the BB-5500 in 109.5 for $40 here:
http://www.lickbike.com/productpage....B='0229-13'
Buy the right one.