You are reading a single comment by @gbj_tester and its replies.
Click here to read the full conversation.
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.
@gbj_tester
False. We've been through this a million times, it's one of the few instances where Sheldon was wrong.
ISO = JIS + 2mm
The extra 2mm is a 1mm x 45° chamfer on each end of the ISO spindle.
There are other problems with your assertion that Miche use ISO BB spindles, all the evidence points to their switching to JIS at some point in the past when they changed spec from 110mm ISO to 107mm JIS, probably due to a change of subcontractor. Miche cranks give standard chainline with 107mm JIS BB, although I'd avoid the UN26 and spend the extra £5 to get a UN55