Abus Granit-X plus D-lock through frame and back wheel and cable lock upfront is the way to go if you ask me. I couldn't find anything on google about breaking one of them...
The good Kryptonites are probably just as good too.
I wouldn't use a cable lock as my main lock, I don't think any cable lock would stand up to a pair of bolt-cutters for long.
Nothing with a barrel lock, nothing with a combination lock, and don't leave any room in your d-lock for a car-jack or whatever. Probably the best you can do really.
Abus Granit-X plus D-lock through frame and back wheel and cable lock upfront is the way to go if you ask me. I couldn't find anything on google about breaking one of them...
The good Kryptonites are probably just as good too.
I wouldn't use a cable lock as my main lock, I don't think any cable lock would stand up to a pair of bolt-cutters for long.
Nothing with a barrel lock, nothing with a combination lock, and don't leave any room in your d-lock for a car-jack or whatever. Probably the best you can do really.