Legendary skateboarder Tony Hawk performed a "900" -- a 2½-revolution (900 degrees) aerial spin -- on the 17th anniversary of his first time doing the trick -- one of skateboarding's toughest.

"I never thought I would be doing this at my age when I was young," Hawk said in the video posted on YouTube on June 27, 2016. "I'm still going. I'll keep on going until the wheels fall off."

Here's my 900 at age 48. Sincere thanks to @Nixon_Now & @MINIUSA for believing in this middle-aged skateboarder: https://t.co/Ga9Jy0DgIr

-- Tony Hawk (@tonyhawk) June 28, 2016