well today me and a bunch of mates had a day planned in Glasgow skatepark(unit 23), we planned it weeks ago, so i thought i would take my street bike instead of my Onza Zoot so i did, i change my street bike rear brake in to a disk instead of having my Vbrakes(as the Vbrakes needed new pads), but about half an hour in this happened i was gutted, my day was over, a 3 and a half hour journey wasted just to snap my rear disc mount , and im wondering has this happened to anyone before?? Johny