13 or 50

What gearing should I be running , for tight single track ? I bought bike used with 13/50 on bike . I have a 45 , 48, 50, 52, 53 in trailer . I rode 35 miles last weekend , bike did great . Not sure what I should be running ?

Has anyone tried 13/50 gearing on an FE450? I have been running 14/50 and it is fine but there are times in the really tight stuff that a bit lower gearing would be better. I used to run 13/50 or 13/52 on my KTM450s with good luck. I really dont care about top speed. As long as the bike...