
To do a Bar Spin you...
1. Begin to roll keeping both pedals parallel to the ground.
2. With the pedals flat, slightly pinch the seat with your inner thigh.
3. Pull back and this will create a small wheelie.
4. During the wheelie you created quickly spin the bars, catching them once they make a full rotation.
With this you will have done a Bar spin.
Jeff Lenosky and Aaron Chase give some great ideas on how to practice getting a barspin ,check out the video below to see them.