

If there are stumps or rocks, less of a slope. If I have to make turns, less of a slope. There are too many factors that go into play when deciding the exact angle. If the ground conditions are right, I can back up those slopes with a 8' rotary cutter out the back and both the front and rear axles locked in 4X4 and the bucket out front just in case. The seat belt hurts after a while and I have my feet on the dash when going down those hills. I've only graded them with an old (borrowed) D9 that had a 8' stinger on the rear I could stab in the ground to slow my progress while pushing dirt down the slope. The 'steep' slopes I have are more than quite the challenge for any motorcycle (without a 5' extended rear swing arm) or ATV. I consider the slopes 'extreme' when you cannot climb them with hiking boots and your hands even pulling out all the grass or shrubs you can get a hold of. I have some 'steep' slopes on my property and then I have some 'extreme' slopes.
