A while back, my u-lock's plastic mount broke while I was riding my bike, sending the lock straight into the pavement. The impact broke off the hard plastic/rubber bit on the lock itself that slots into the mount so I can't even get a cheap replacement mount from China.

For over a year I've hooked the lock onto one of the shoulder straps on my backpack but I noticed the added weight and stress of a heavy piece of metal dangling off the strap has caused the stitching to start to rip.

I'm getting tired of lugging this thing around. Doea anyone have any ideas for mounting it back on the frame?