Looks like the lower end newer stuff is bh59 still rather than bh90. I knew there was a bore size difference, hadn't noticed bh90 being tougher though.
@snottyotter 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.
Looks like the lower end newer stuff is bh59 still rather than bh90. I knew there was a bore size difference, hadn't noticed bh90 being tougher though.