Hello,
I was with a specialist and he advised the following technique to use with a u-lock mini:
- Lock the back wheel to a pole, inside the triangle frame. In that way, even if they release the wheel they won't be able to take the frame or do anything because they will get stuck inside the triangle.
Picture shows where I would put the lock:
Please, let me know if the technique is good enough or if we were missing something.
Thanks.