A man allegedly drove away with a new motorbike from a showroom in Itanagar during a test drive, police said on Monday.
Posing as a buyer, the man in his mid-twenties went out for a test drive on Saturday with an employee of the showroom as a pillion rider.
After a brief test drive, he asked the employee to get down so that he could ride the bike on a dirt road and never came back.
The dealer has announced a cash reward of Rs. 50,000 to anyone who provides information about the 180cc bike worth Rs. 78,000 as the man remains untraceable, police said.