Anyone using a 51T rear sprocket for MX? I know the general opinon is that the 50T is the hot setup; however I am looking for alot of pull to get my 225 lbs up those doubles coming out of corners. I have been running a 52T! It works pretty good but took away too much top end. The 49 is definately out. Now I have the dilema of 50 or 51. Also opinons on steel vs. aluminum? SS and Ti just too expensive.