I have a frame which has a 68 mm BB shell, although its Italian threaded (normally for a 70mm shell). It had a Shimano Octalink cartridge BB, which worked because the adjustable cup slid over the cartridge and would adjust, possibly to work on any shell up to 73 mm. I want to swap the BB for a square tapered one for a campy crank. Any thoughts on where I could find a square tapered (ISO) BB with Italian threading that would fit a 68 mm bottom bracket shell?
I have a frame which has a 68 mm BB shell, although its Italian threaded (normally for a 70mm shell). It had a Shimano Octalink cartridge BB, which worked because the adjustable cup slid over the cartridge and would adjust, possibly to work on any shell up to 73 mm. I want to swap the BB for a square tapered one for a campy crank. Any thoughts on where I could find a square tapered (ISO) BB with Italian threading that would fit a 68 mm bottom bracket shell?