What is the best lock?

@ Ed - Yes, good point. My new wheels I'm thinking about protecting will be open pros though, so I reckon this would work for me.

I've also thought about getting hold of a very short chain of very big strong links and using that with the NY disc to lock the back wheel - which would work for deeper rims, but I'm not sure where I'd be able to get this - anywhere which sells chains normally just chops them with bolt cutters, which defeats the point.

@ Dylan - am I being dim, how would this protect my front wheel from being nicked?

Another quick point is the rims; if it those deep section rims, then forget about using those small lock, there's no way it'll fit nicely with a Velocity Deep V (as a benchmark), let alone H+Son.