Just got a speedometer for my KDX and just had to see how fast of a top speed I have. After 60 I was getting scared and really not wanting to go any faster but I had to see just what I could get out of it. Pulled nice to about 55-60 and climbed slow after 60 and at 80 was all I could get out of it. I don’t think I could have made it go any faster even if it was going down hill with a tail wind. Don’t think I’ll do it again because I get more of a rush finding the most aggressive rutted, rocky narrow hell trails than top speed, but now I know how fast I can go if pushed. This is a stock bike other than 12 tooth counter, boyesen reeds, jetting, and air box lid removed.