L.A. Rams running back Tre Mason led police on an ATV chase through Palm Beach, FL -- after officers say he was riding dangerously in a local park ... TMZ Sports has learned.
It all went down on July 27th around 3 PM -- when cops say Mason was tearing up the grass and dirt on an ATV while not wearing a helmet or eye protection.
Cops say he was doing wheelies and "spinning the tires so the dirt and grass would shoot out on to [the nearby road]."
One officer tried to approach Mason to talk -- but the RB drove right past him at a high rate of speed .