The 140R L has favorable reviews, including one young rider saying it's "super good on trails as a little mountain goat," and recommending it to people ... riding all kinds of dirt bikes ...

Those are not street-legal vehicles.” On Sunday, SFPD also received reports of people riding “motorized dirt bikes” throughout the city, Robert Rueca, a spokesperson for the department ...

Dirt bike riding advocates, meanwhile ... an organization that uses dirt bikes to teach young people about the science, technology, engineering and math behind the pastime and perhaps draw ...