hey guys what can be done to a pro xr 800 to make at least 150 hp and hit 115 mph. i was thinking head, pipes, gears, clutch, reeds, lighter track.
what would be the best bang for my goals. i am thinking of getting a xr for next season what should i do?
what would be the best bang for my goals. i am thinking of getting a xr for next season what should i do?