Well I used to think that to back wheel something, you had to have speed. But when I was trying to back wheel something about 4 feet high, my mate told me I was going too fast, he said "why do you need to go fast? Going fats only takes you into the wall not up it, he advised me to slow down and pull up harder and pull the bike up towards me. When I tried this it was so much easier it was unbelievable lol CJ..