You can do as jamesprw says or you can simply buy an adapter 1" to 1"1/8 like this. That's much cheaper but also heavier.
@meconium 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.
You can do as jamesprw says or you can simply buy an adapter 1" to 1"1/8
like this. That's much cheaper but also heavier.