DORCHESTER, Mass. — Two Bay State bozos turned Facebook Marketplace into their personal joyride dealership — peeling off with ATVs and dirt bikes in exchange for rubber checks, cops say.

A joint sting by Boston PD's Auto Theft Unit and Milton cops came to a head at 9:10 a.m. on May 13, when officers stormed two homes with search warrants — one on Woodgate Street in Dorchester, the other on Sprague Street in Dedham.

The Dorchester raid turned up three stolen off-highway vehicles. The Dedham bust netted a fourth — a dirt bike — plus a firearm that, in the words of police, was "improperly stored."

The two suspects, both collared by Milton Police, are staring down charges of larceny of a motor vehicle, forgery of a check and uttering a false check.

The alleged scam was almost laughably simple, investigators said: browse Marketplace, agree on a price, hand over a worthless check and disappear into traffic. By the time the bank flagged it, the sellers were left empty-handed — no machine, no money and no clue who'd just rolled out of their driveway.

All told, Boston Police pulled ten dirt bikes and ATVs off the streets across the two operations — and recovered one firearm.

The double bust comes as fed-up Bostonians have had it up to here with so-called "bike life" — roving packs of dirt bikes, ATVs, mopeds and scooters tearing through city streets in illegal takeovers, popping wheelies, blocking traffic and terrorizing neighborhoods at all hours.

Last August, hundreds of riders flooded the Zakim Bridge and barreled into the O'Neill Tunnel in a coordinated takeover. One dirt bike slammed into a state police cruiser near D Street — and the rider bolted on foot.