I'm trying to setup a rear fender on a bike with track ends, and I already have a set of Planet Bike Freddy hardcores. As has been pointed out in previous posts, removing the rear wheel gets ugly with permanent fenders and track ends. One suggested solution was the "break-away" mount used on SKS front fenders. Does anyone know for certain whether these clips also work for rear SKS fenders? And whether they would also work with Bike Planet Freddy fenders? I suppose I could always resort to wing nuts for easy release of the fender arms, but that might even be too cheesy for my low standards.