I have a 2012 Silverwing with 15,000 miles on the clock.
About 8mths ago, I did a couple of long motorway journeys and during these rides, had no issue hitting 100mph.
Ever since however, if I approach 100, my revs are bordering the red.
I cannot figure out what the problem is, certainly nothing obvious although I will admit that I'm far from mechanically minded!
What are your standard top speeds and does anyone have any suggestions?