I did mine with a large adjustable spanner and swinging on it when I was a kid. Impetuous youth...
Was tempted to, before stumbling across this site. Only thing that stopped me was the cost of having to buy a big enough spanner...
@BernardRenault started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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I did mine with a large adjustable spanner and swinging on it when I was a kid. Impetuous youth...