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135 OLD
I'd double-check that, 120mm is more likely: http://www.sheldonbrown.com/gloss_sp-ss.html#spacing
If I'm right (not a given), then the rear chainline will be 42mm.
Road double cranks have chainlines of around 41mm (inner ring) and 46mm (outer ring).
So you can either use the "correct" BB for the cranks and the inner ring position, or the outer ring position with a BB 8mm shorter than is recommended for a derailleur set-up.
http://www.sheldonbrown.com/chainline.html
PS I have 7410 and 6400 cranks going spare. #spam
Scilly.Suffolk
ChasnotRobert
Dura ace cranks
Looking for a chainset for my commuter bike (Charge Plug Zero). It has 68mm width square taper BSA bb, 135 OLD.
Would like advice on what crank will work with this bike, e.g. Dura Ace 7410, 7700, 7701? I think these are road double cranks but as it appears both chain rings fix to the same bolt holes, I'm guessing it will work with just one chain ring? Seem lots cheaper on ebay than the track specific cranks - not looking to spend £hundreds.
I don't mind replacing the bottom bracket, just don't know what will work; is it just a matter of getting the right bb then can use any crank?
It is SS at the moment, will likely convert to fixed at some point.
Apologies for dumb questions; I've only ever had gears bikes until recently.
Many thanks