Calling All Guru's...

[ID KX500]

I'm running 13-47,,, it sucks in the sand,,, I can still hit 85-90 in the wide open,,,, but it is perfect in the first gear crawling over rocks, cliffs, and down right gnarly.  You are right about the personal preference,,, like choosing a wife,,, not always perfect but too much trouble to change.

[3Razors]

I like to stick with at least 14 tooth in the front on KX500.  I've found that if you go into the 13 tooth the chain starts wearing very hard into the rub plate and will go into the swingarm.  14/47 seems to be a good combo that works on all kinds of terrain, I feel Kawi engineers did their homework on that one for us.  4 teeth on the back sprocket is about equal to 1 tooth on the front so a 14/51 would be about the same to a 13/47.