I've seen the slot on more than one Gioseses. I don't know the reason but i therefore think it's done by Gios
@HillyBen 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've seen the slot on more than one Gioseses. I don't know the reason but i therefore think it's done by Gios