Chicago Cubs Starlin Castro — My Off-Season Is For Badass Off-Roading

EXCLUSIVE

Starlin Castro is gonna have some seriously filthy fun before baseball starts up again — the Chicago Cubs shortstop just scooped up a new off-road toy, and turned it into a rolling nightclub.

TMZ Sports has learned the 3-time All-Star bought a 2015 Polaris 1000 — a honest all-terrain vehicle — which he pimped out with 4 custom 24-inch waterproof speakers.

The Auto Firm in Miami did the tricking out, and title-holder Alex Vega tells us Starlin shelled out $ 25K for the customizing, on top of the $ 20K for the ATV.

Maybe the pimpest addition — the speakers AND custom wheels light up in different colors! They’ll see and hear Starlin coming from blocks away … when he ships the rave-on-wheels down to his native Dominican Republic.