[Rookie Rider]

I had it full throttle in 5th. I was at 65mph, then shifted up to 5th, it dropped, i kept the throttle all the way open for a few minutes and maybe once or twice it picked up to 60 but i think i was on a slight downgrade. But it took a couple of minutes to pick up speed in 5th. Im gonna ride on the highway again and really pay attention, just in case i may be mis reading the bike, ya never know right?