Originally Posted by
rekmeyata
Fine that you disagree but I disagree with you, I know how angle grinders work, and it would only take an average of 15 to 30 seconds for each lock, the longest was 1 minute 10 seconds to cut through a single Kryptonite NY Fahgettaboudit D lock.
Sure, but do you use one on a regular basis? I do.
Cutting through something securely clamped in a bench vice while holding the grinder w/ cutting wheel with two hands is rather different from cutting something sitting loose, trying to hold it with one hand while holding the grinder with the other hand. Cutting chain links is another thing - easy when they're clamped securely yet rather difficult when they're loose. (not impossible, but not simple either)
So while your point is correct that an angle grinder & cutoff disc will go through near everything in fairly short order, you're also oversimplifying just how quickly it'll get through multiple cuts in the field without being able to easily clamp/hold what you're trying to cut.
There's also the part where the thief is far more likely to go after the easier to steal bike. Given the choice of a bike with a double-locking u-lock and chain vs a bike with a single-locking u-lock, the thief is more more likely to target the bike needing one single cut rather that four cuts.
Originally Posted by
JohnJ80
you still have not explained how I’ve been able to completely avoid bike theft with two bikes in an urban university bike stealing environment for 10 years for two bikes (19 bike-years). That should not be possible if angle grinders are everywhere and everything can be defeated by them as you allege. (Hint: it’s not the grinder)..
Exactly. There are many layers to security and frankly the simplest one seems to be to make your stuff more difficult to take than other people's stuff. The thief specifically wanting
your bike will take it even if double locked. The thief just wanting
a bike will go for the easier target.