Well, Ive got a GameSled & Ive loaded my summit climber (21lbs) in it & bungeed it down real tight & attempted to walk across my flat, well manicured backyard...... It was like pulling a bulldozer through a swamp that continually rolls over. Now imagine the frustration I had when I took it afield to pull a 150lbs deer. I wish I hadnt wasted my hard earned $$$. Live & learn.