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The Backside or Frontside Flip:  Difficulty [5/10]  Also See (Ollie, Kickflip, Frontside, Backside)

1.  Kickflip position

2.  Start a 90º ollie and start your kickflip

3.  Catch your kickflip at that 90º angle in the air (Now you've done a 90 Flip, you stop here and pull to a grind, or something else, or continue)

4.  Use your arms in the air to help you spin that last late 90º to complete the trick.

Why catch the kickflip at a 90º, so you don't over rotate on a full 180º spin.