I have a small sub compact tractor & these forks are definitely heavy duty for the bucket. Even though these forks seem over kill for my small tractor, these are of superior quality & at 65lbs each, ca. Handle anything my tractor can do & beyond. The chain buckles work very well to secure the forks to the bucket, however, I added a pair of 3/4" bolts to clamp each fork before I cinched tight the buckles. The bolt downs don't come with this particular model but I would recommend using a pair.