What is the displacement of Yamaha R6 photographed by Southwest University?

25 km x4= 100 km, and the fuel consumption of R6 is equivalent to 1.6L family car, and the peak value will exceed10l when driving in a civilized way. You can calculate the gas consumption for one month by yourself. In addition, the maintenance of R6 needs to replace the oil of 3,400 yuan and the tires of 2,000 yuan, so the annual cost is not small.