Anything acidic will do it. Lemon juice, vinegar, or dissolve one of the citric acid tabs.
Nice! Will give it a go
@jackc 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.
Anything acidic will do it. Lemon juice, vinegar, or dissolve one of the citric acid tabs.