Update 6.10.2009
I've had more time with this lock- its pretty much the only lock I carry. None of my bikes have been stolen, so it must work, and I'm sticking to that.
I wish it was just a bit bigger so I could get it around a parking meter, my frame, and my back wheel (they do make bigger models though). I don’t lock just my head tube- that’s just plain dumb... Hello!!!! Steal my wheels!!! Over all, great lock still.
-Cole
brandon got a few locks from onguard and hooked me up with the bulldog mini with the cable because i need to lock my wheels on my touring bike. i had a mini u lock, but it's on the shelf now that i got the onguard. its a good size lock- it fits around parking meters which is a bonus. its still not quite big enough to fit around your frame and a deep v but thats what the cable is for. it comes with a mount for your frame and 5 keys- one is a light up so its big as hell.
the lock rotates smooth and you can't pick it with a bic pen (did that ever really work?). the only real complaint i have is the yellow caps aren't really glued on, so sometimes they rotate into where the u connects to lock and you can't lock it up and you have to rotate the yellow things out of the way. i thought about taking them off all together, but it leaves the ends of the lock exposed. while im sure its fine i just didnt like the way it looked. i can't find the info on their site, but i'm pretty sure they also might have the same replacemnt insurance as kryptonite but i'm not sure (if i remember correctly, this series has protection up to $1501! -brandon). over all, i'm happy with this lock and im sure it be around for a lot of years to come.