@dave yes, in fact, many are inoperable, some are operable—but barely, and some are in remarkable shape.

I often work oil through them to make them work better. Sometimes use degreaser, an ultrasonic cleaner, WD-40, wire brushes, etc.

@alice @dave Being honest now (I realise you take immense pride in your locksport!), have you ever encountered a padlock that completely defeated you? If so, which brand was it? I mean, as an expert in lockpicking, what would you confidently recommend to a friend?

Also, what would you recommend to secure a bicycle? I've been told by a police officer that nearly everything can be brute forced with industrial bolt croppers - indeed, thieves prefer this method to tinkering with fiddly mechanisms.

@ApostateEnglishman @alice @dave

locks and chains are for slowing a thief down not preventing theft. making your bike as annoying/worthless to steal, as possible, is the goal. removing the front wheel and chaining the rest will do more to prevent theft than anything else