M Mason Q Guest Aug 19, 2009 #1 ...more like the 2 stroke? what year did the 2 stroke dirt bike engine go obsolete? and what year did the 4 stroke get more torque or wut ever?
...more like the 2 stroke? what year did the 2 stroke dirt bike engine go obsolete? and what year did the 4 stroke get more torque or wut ever?
