When you have $1 million worth of vehicle, try to make sure no one's tailing you.

The owner of a million-dollar, one-of-a-kind, 1914 twin-cylinder Cyclone motorcycle thinks that crooks might have followed him home after its showing at the annual, open-to-the-public Beverly Hills Concours D'Elegance car show on Rodeo Drive last Father's Day, according to reports.

They apparently came knocking over the weekend:

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The LAPD says that two men kicked down the door to the owner's Bel Air home at 4:30 a.m. Saturday and tied up the man after he confronted them.

The man's wife reportedly ran to a neighbor's house to call cops. But it was too late.

The duo, in a white cargo van with a “Rent Me for $19” advertisement on its sides, got away with the Cyclone and a rare, 1950s Honda racing bike worth another half a million, according to reports.

It happened in the 900 block of Linda Flora Drive. The van was last seen on Moraga Drive near Sepulveda Boulevard.

Here's the thing. The Cyclone is so rare that it will be hard to sell without someone noticing. So if you see it or its parts, call detectives at (310) 444-1540.

And watch your back, rich guys.

[@dennisjromero / djromero@laweekly.com / @LAWeeklyNews]

LA Weekly