rc 390 drag race old vs new bs3 bs4 bs6 , nandi hills

all the 3 models almost has the same power thats what i feel , we also did 3rd drag race in which old bs3 model took first place, there is no much difference in bhp there is a difference in refinement and mileage improvement from bs4 but the row sound of bs3 is really fun riding , you get the feel of riding a powerfull machine