You are reading a single comment by @BlackMath 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.
BlackMath
Split ring spanner may be your best bet.
https://www.cromwell.co.uk/shop/hand-tools/flared/metric-flare-nut-spanner-chrome-vanadium-steel-13mm-x-14mm/p/KEN5823550K