To summarize, a skateboarder's feet need to do two things successfully to complete an ollie. They need to provide a changing force to move the board correctly (so that the combined force of gravity and the skater's feet add up to the green arrows above), and they need to provide different amounts of force with each foot (shown by the red and blue arrows above) to steer and turn the board into the right orientation.

For sale I have a Powell peralta old school ripper complete red and black with 169mm independent blackout trucks blue cambria 3md 62mm wheels and bones reds bearings The deck has only been skated twice with minor scrapes on the tail and wheel wells I added the independent blackout 69mm trucks and the Cambria wheels im selling it because I’m moving in a different direction I’m building a longboard for myself for this summer anyway the deck is a reissue ripper you can’t get it anymore great overall skater very durable
No one had ever seen anything quite like it before, but no one knew just how transformative that moment would become. It wasn’t just that you could simply pop up into the air, it’s that it gave the rider a whole other set of opportunities to do tricks, and you don’t even have to be dependent on a ramp! As time went by, people began to add other skateboard tricks while they were airborne.
It wouldn’t be until the early 1980’s however, that a man named Rodney Mullen fully developed the skateboard ollie and brought it into vogue. Competing in the Rusty Harris contest in Whittier, California in 1982, Rodney Mullen used a back and forth motion on his skateboard to strike the back end of the board on the ground and using the front end to level the board out in mid-air – all from a flat surface. The audience’s jaws collectively hit the ground.

Smile and wave – Feel free to look around at all the other people at the skatepark that stood by and marveled at your new-found accomplishments (all one of them). I’m sure by this point you’ll be picking up roses that are being thrown at your feet, and taking a well-deserved bow as they begin to chant your name. Take it all in, thank the crowd for their undying affection, and then go get a snow-cone. You deserve it, champ.