I'm looking to replace BB and chainset on a road bike.
The one fitted is Shimano square taper, without removing it, I know nothing else about it.
The replacement is Ultegra Octalink with 70 printed on it (the width?) although distance between the end caps shoulders is 66.4 mm but that may be reduced on fitting it.
I measure BB shell width to be 66ish mm.
I don't know if threads are compatible, the replacement I've been told is Italian - is this the more common one? Bike frame is aluminium of some unknown brand.
Is it likely to fit or as I suspect, the only way to tell is to try to fit it.
Also BB is not new, is there any way to clean and regrease the bearings? Being sealed I suspect the answer is no.
The one fitted is Shimano square taper, without removing it, I know nothing else about it.
The replacement is Ultegra Octalink with 70 printed on it (the width?) although distance between the end caps shoulders is 66.4 mm but that may be reduced on fitting it.
I measure BB shell width to be 66ish mm.
I don't know if threads are compatible, the replacement I've been told is Italian - is this the more common one? Bike frame is aluminium of some unknown brand.
Is it likely to fit or as I suspect, the only way to tell is to try to fit it.
Also BB is not new, is there any way to clean and regrease the bearings? Being sealed I suspect the answer is no.
