I just never get tired of my 2000 Yamaha WR400F! It's an all around great dirtbike! It can keep up with anything! It's just amazing! I just took it on the road to get it up to speed! I got about a mile stretch of highway where guy with superbikes race! So I took my dirtbike and stopped at the stop sign and waited for a truck to pass then I gunned it and caught up to the guy in the truck in about 5 seconds! He was going about 65 MPH! Because that's what my speedo said. Then I turned around to go back and got up to 75 MPH at mid RPM in 5th and just held the throttle at that because of the wind! I still had some throttle left! It must go 90 MPH! I know It will do almost 70 MPH in 4th gear!