Locks that work

I'd favour the Abus Granite 54 x-plus over the Knog at that price point - £56

Yep, it looks like a very good all rounder. Good enough to make it into the "locks that work" list, but almost conspicuously so at only 13mm (square). The only other positive I can think of for the Knog Strongman, is that it's silicone skin would be annoying to thieves. It would gum up a cutting blade. It would take longer to cut away the skin with hand tools than it would to cut through the shackle with an angle grinder! So it gives it a sort of unexpected advantage.

Down to £18 now! Damn, I paid £30 the other week.
£24 with delivery. It seems too cheap! Isn't there some sort of quality issues with it? For OnGuard, I've heard of keys made of soft metal that breaks and really bad weather-proofing. Although I don't know if either of those applies to that specific lock.

like the knog strongman or the abus ugrip plus 501. i read the tests about the knog but couldn't find any info if the abus is better than the knog. any advice?

The Abus is meant to be 13mm square, so should be thicker, heavier and more secure than the Strongman which is 13mm round.