Harley-Davidson Inc. has hit on what it thinks is a rich trove of untapped demand in Japan: four-wheel drivers who can't ride two-wheel motorcycles.

To give them a taste of what the iconic American company has to offer, Harley-Davidson is rolling out the three-wheel Tri Glide in Japan, its largest market outside North America. The Milwaukee-based company began selling the trikes in Japan in February starting at ¥4 million.

"It's a relatively easy way into Harley-Davidson," Stuart Farrell, head of the company's operations in Japan, said in an interview Monday in Tokyo. "You can park it next to a nice car and people will still look."