Instructions
Look at your in-game map and look for Ray Barbee. Skate over to him and speak with him to get his challenge. Allow the challenge to load.
Skate forward until you get to the bike rack. Jump and move the right thumbstick down, then up quickly to do a No Comply over the rack.
Rotate the left thumbstick 360 degrees in either direction to execute a Revert. Rotate the right thumbstick 360 degrees in either direction to execute a Pop Shuvit. You must complete both actions in this order before you get to the dumpster.
Jump just before you get to the dumpster, press either trigger button to perform a grab, then press "X" or "A" for PS3 or Xbox 360, respectively, to perform the footplant on the dumpster.