Do you have a long, straight road? If so, just start by spinning up to 100 rpm, then sit and spin it up. Repeat until comfortable. Increase the standing rpm to 110 rpm, then sit and spin it up. Repeat until comfortable. Keep adding in more standing rpm......just need to train your mind, legs, body, etc. You can do it on the track as well, but the straight road just lets you concentrate on standing/sitting without any turning, g forces, etc. Once you get it down, transition to the track.