Something is very wrong if you can’t get an unrestricted dtr125 over 55-60mph! Seriously bud. I’m pretty sure mine did that in 4th back when I used to go over 6k rpm!…
@SpookDog I'll inspect the power valve from the exhaust port and try to post pictures later, just to be sure
The bike feels fast and has good acceleration so there's a possibility that it's just my speedometer that's screwed up LoL