I have a pretty much original 1991 Kona Firemountain, only real issue I have (apart from needing a respray) is that I need a Bottom Bracket needs replacing. The old Tange unit has had it. It is a standard 68mm British Tapered Square with a spindle length of 125mm (measured)
I am thinking of replacing it with a Shimano BB-UN55 but that only comes in a 122.7 or 127 spindle. Which one do people think I should go for? I am assuming the 127????
I am thinking of replacing it with a Shimano BB-UN55 but that only comes in a 122.7 or 127 spindle. Which one do people think I should go for? I am assuming the 127????