You are reading a single comment by @provenrad and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@provenrad
http://www.sheldonbrown.com/bbsize.html#shimano
Scroll down till you see Dura-Ace 7200 (the alternate designation for earliest DA EX)
BB needs to be 112mm for 68mm shell, and 113mm for Italian.
These will give you a 43.5mm chainline (mid-point of the two rings at 41mm and 46mm) if you want the outer ring to be at 43mm, then you will need a bottom bracket that is 6mm shorter i.e. 106mm
The shortest Shimano I recall seeing are 107mm.
Not that hard mate!