If it's reasonably modern then it'll probably take a standard Italian threaded BB. I have a 1996 Master Olympic and that uses a normal 70mm wide, 36mm x 24 TPI with right-hand thread on both sides.
@Mudd 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.
If it's reasonably modern then it'll probably take a standard Italian threaded BB. I have a 1996 Master Olympic and that uses a normal 70mm wide, 36mm x 24 TPI with right-hand thread on both sides.