My 1070 has 3 ranges. The low range forward is a crawl. Revers is a snail. I use it with a rear rototiller and back up with it. Rear flap raised up. Good for spitting rocks up and out. Good way to chew up a gravel driveway, too. But, I don't know what ground speed the low reverse or low fwd produces at max rpm. depends on what tires (obviously) you have.