Should just be a 6mm allen key - the hole is well recessed within the wider rounder hole.
Get stuck in there...
@BringMeMyFix 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.
Should just be a 6mm allen key - the hole is well recessed within the wider rounder hole.
Get stuck in there...