I get a ton of questions about bike locks. My answer is usually uniform: don’t bother with cables, don’t skimp on the cheap stuff, go for a big, heavy, hardened steel lock.
That’s because steel is usually the best option. There just hasn’t been a ton of innovation, particularly with regards to weight.
I totally understand too, it’s a tough nut to crack. How on earth can you keep your bicycle safe and secure with featherweight lock? Typically a light bicycle lock means compromised durability.
But what if you move away from steel entirely, to an exotic material like titanium?