I'm pretty loyal to the U-lock, it's the fastest. When I was a messenger, locking and unlocking 50 times a day, we all used them. It takes 5 seconds when you go

I'm pretty loyal to the U-lock, it's the fastest. When I was a messenger, locking and unlocking 50 times a day, we all used them. It takes 5 seconds when you got your system down.