I have a ground drive 25 bushel and pull it with a Polaris 570 ATV. In the winter, we clean stalls and the dry lot right into the spreader. 3 horses make a full load each day. It does a nice job of shredding the manure (as long as it isn't frozen) and I spread onto the hayfield. When the grass starts growing, we switch to composting and the spreader takes the summer off.