If you're worried about your bike getting stolen, grinder-resistant D-locks are the way to go. Here's a video with destructive testing to see which of the options survive the best and resist twisting attacks. I have a Hiplok D1000, which fared well.

https://m.youtube.com/watch?v=LKInoufWZi0

#BikeLocks #CycleSecurity #BikeSecurity #CycleLocks #HipLok #KryptoniteLocks #AngleGrinderResistant