Installed a set a couple of weeks ago for a walk behind and they are awesome! One thing though I guess I didn't consider. I use my trailer to haul mulch once in a while. Once these things are installed it appears they cannot be removed unless you unscrew them due to the straps being fed through the chocks BEFORE you screw them down. Anyone else run into this? Did you just through the mulch or dirt over top of them and let them get all nasty? Guess this is one of the drawbacks. DOH!!!