Fifteen years ago my regular ride home from work involved a loverly stretch of two lane country road with a similar, if way less radical, jump. Road speed limit 50mph. Taken at 60 -70 mph you'd get a nice front wheel loft. Taken at 80 - 90 mph you'd get a foot or two off the ground and fly 10-12 ft. Taken at 100 - 120 (my testicles wouldn't allow any more) you could get a 3-4 foot loft and about 20-25 foot flight... felt like 100ft up and a mile long!!! Also had to really crack it on lift-off to keep the front up and not land fork first and induce a pant wetting, and bearing-crushing, wobble!