hm, The way I figured out how to do this was on wet pavement, very easy. Applied the same to dry just with a bit more brute force. I would follow the tips above but try it on the west or dusty pavement first to get a feel for it. My tires thread-bare right now. I can spin the tire backwards trackstanding if I unweight the seat, free tires though from a friend who works at a bike shop who takes home the front tires of roadies who find the need to have both tires matching when they replace the rears

its a grab bag, but if yr gonna skid em who cares.