by dlee » Fri Jul 12, 2013 6:24 am
Its alot easier to change your front sprocket, rather then your rear sprocket,cheaper too. Check out this chart. I have a 06 crf450x I run 12 in front and stock 48 in the rear. It is an awesome set up for trail riding...keep in mind that's the only kind of riding I do. No track riding or street riding
http://www.sprocketcalculator.com/
I didn't vote for him
2005 CRF450X