I have tried 25.4 and it just won't fit, and definitely don't feel like trying to file down the inside of the stem.
No worries, I just thought I'd offer it up, that said I do have lots of bars to go with that stem... Let me know if interested, cheers.
@cheekysnaker 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.
I have tried 25.4 and it just won't fit, and definitely don't feel like trying to file down the inside of the stem.