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How do people store their bikes outdoors?
(lemmy.ml)
Finally, a comm for that one user who hand-makes longbows. This ones for you, comrade.
If you go the safety route bucket full of concrete with embedded U-Bar is as good as you're going to get before screwing things into concrete.
But I'd advise the alternative; beater bike. Make it mechanically sound but look like shit so somebody elses bicycle gets stolen and if it does it doesn't cost so much