What are the pros and cons of an aluminum frame vs. a steel frame.
Steel has more resistance to stress fatigue, is smaller in cross section so there is more room for other bike parts (more compact package), easier to weld if it does crack.
In Honda's case the the CRF450X gained more weight than did the WR450F compared to their motocross brothers even though the WR has a steel frame.
Also, I read about some aluminum frames are too stiff (although I can't imagine how that could be).
Is aluminum better? Or not?