Let me start by saying this lock is a BEAST. After having two e-bikes stolen, I was done playing nice. The ABUS Granit Super Extreme 2500 feels like wrapping your bike in a bank vault - in the best way possible.

First off, that 20mm square shackle? Thicker than most criminals' morals. I watched those torture test videos too - where other 'tough' locks lasted 4-8 minutes against angle grinders? This bad boy held out for THIRTEEN minutes on just one side! The thief would need a lunch break and fresh grinding discs to even stand a chance.

Yes, it's heavy (2.4kg), but that's the weight of real security. The double-locking mechanism gives me peace of mind when leaving my €3,000 e-bike downtown. Though fair warning - the plastic coating is so tough I had to wrap mine with tape to prevent frame scratches.

The only quirks? It can be slightly finicky about alignment when locking (I've learned to push down while turning the key). And like most U-locks, it won't fit around giant trees or wide posts. But for securing to standard bike racks? Absolute perfection.

At this price point, you're not just buying a lock - you're buying back your peace of mind. When I see that bright yellow ABUS logo on my bike now, I know my wheels will still be there when I return. Worth every euro for serious cyclists.