The Tattoo's have a much larger footprint for better floatation as well as a different drive system so there are no holes in the track for the drive sprocket. The rear tracks are 2 inches per track widder and the fronts have a flatter bottom that puts more track on the ground. Also the difference in the tread pattern seems to help. The rear tattoos have a snowcat like tread pattern with similar tread pattern to the apache's in the front. The apache's are easier to steer than the tattoos due to the lack of track on the ground so they work out pretty good for my wife.