Tiger chasing a motorcycle hit the video
Tigers, like many other predators, have an instinct: what runs away from them is prey. It must be caught, and then taste it. It is possible that in this case something similar happened: the motorcycle was moving away from the tiger and he could take him for a running antelope or something like that.
It is possible that the persecution stopped precisely because the beast realized his mistake. Maybe the truth is, it’s just that the motorcycle rode fast enough and the tiger didn’t have time to catch it: these animals usually hunt from ambush and, having missed the first throw, rarely try to catch the prey further.