Sacramento Family Builds 12-Person Bike

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SACRAMENTO-

If you see a 12-person bike rolling around Sacramento, say hi to the Duffy family.

Technically, the contraption is a "kinetic sculpture" - one they'll race 40 miles this summer across roads, dunes and even water.

The bike is made from yards of bicycle chain, two axles from dismantled cars and two steering wheels, just to make things interesting.