They're tough all-terrain vehicles made right in New Hampshire."We can do all kinds of rugged terrain from soft mud to hard terrain like rock fields," said Tom Blais, president of Rokon International. "Our bikes literally can go anywhere."Tom Blais and his son, Brad Blais, the vice president of the company, showed "NH Chronicle" around the Rochester facility where their motorcycles are made. For example, the frames and wheels are bent and welded here, then sandblasted and powder coated.