[lmm]

I live in London and I've had my bike stolen around once a year; four times now. I try to treat it as just a cost of life (the bike is still saving me money compared to train tickets), but it gets to be irritating. I've got a cycling holiday booked next month and I'm terrified my bike's going to be stolen just before I go.

[aphexairlines]

Have you tried a wheel lock? http://en.wikipedia.org/wiki/Bicycle_lock#Wheel_lock Someone walking around London carrying a bike rather than riding it would look pretty suspicious -- wouldn't police stop someone like that and check the registration sticker?

[lmm]

The first time I just locked the wheel. Every time since I've used more advanced locks. It was never unlocked.

The last time one was stolen the thieves left the back wheel (locked to a stand) behind, unscrewed it and cut through the cable that was holding the frame. AIUI bike theft is mostly organized, they take a whole load and throw them in the back of a van, rather than carrying them around.