LFGSS
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.
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.
My very old but much loved commuter slag is wanting for a BB upgrade as the old JIS square taper Sugino cartridge 68mm x 103mm (BSA UN-55?) had been creaking for a while now and the bearings are pretty shot, the Sugino cranks were damaged removing them too sadly.

Can I switch to threaded cups (like the Shimano Hollowtechs?), I'm a little lost as to what BB and crankset combo would be a decent upgrade (Miche Primato) ?
Anyone upgraded their old Aluminium Langster similarly?