Will an external BB not be the ideal solution? See https://www.bikemonger.co.uk/yst-threadless-bottom-bracket-58-p.asp?_=&variantid=60
I have one of these on my old Carlton steel frame, works fine. Mavic used to do something similar, I had one on my Vitus 992 many years ago.
That could be an option. Limited to square taper cranks, though. Which may not be an issue as the plan is to build it up with 'modern' components that are on the older/cheaper end of things.
@ketsbaia started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Will an external BB not be the ideal solution? See https://www.bikemonger.co.uk/yst-threadless-bottom-bracket-58-p.asp?_=&variantid=60
I have one of these on my old Carlton steel frame, works fine. Mavic used to do something similar, I had one on my Vitus 992 many years ago.