I recently received a MTB as a birthday gift. I'm 18 now but have been riding bikes since I was 6. I've always wanted to wheelie for longer distances and now I learned how to after praying. But anyway, I'd like to improve by training my muscles, but I don't know what muscles I have to stress in order to get better wheelie endurance. I have a back hydraulic suspension which I set to bet pretty hard because the softer it is the more of a setback it is for wheeling.