The motorcycle industry is growing extra wheels.
Many manufacturers at this weekend's Progressive International Motorcycle Show are using the event to promote vehicles that aren't motorcycles at all. They'll be trumpeting their side-by-sides — four-wheel-drive off-road vehicles that are a cross between a souped-up golf cart and a downsized dune buggy.
To be sure, the manufacturers' main interest in the motorcycle show is still motorcycles. The annual gathering in Long Beach is their chance to introduce new machines to an estimated 55,000 attendees over two days and almost 90,000 square feet at the Long Beach Convention and Entertainment Center.