Ok, bought my Colnago superissimo on ebay. Mid 80's SR chain set running on Chorus sealed bb. Recently developed a wee wobble, so stripped it to find coke can shims spacing the drivevside crank. When I tried to refit without the shim the inner ring was virtually touching the stay. Removed bb and measured axle at 117mm which seems like it should be long enough. Am I another victim of jis vs iso?
Read a bit and I know campag changed to iso late 80's/90's so is my chorus iso and SR cranks jis? Crank tapers are still fine so that's not the trouble. Either way I need a new bb.
Opinions and advice please.
Read a bit and I know campag changed to iso late 80's/90's so is my chorus iso and SR cranks jis? Crank tapers are still fine so that's not the trouble. Either way I need a new bb.
Opinions and advice please.