I complained to my dealer that at speeds higher than 100 Km/h (62 MPH) I was feeling in the handlebar an increasing vibration with increasing speed.
He purposed a solution: Install Triumph Chrome Handlebar-end Weights (in this case the original for the Sprint 900 he still had in stock)
And a solution it was!
It is amazing how efficient they are. Yesterday I went up to 175 Km/h (110 MPH) and now it goes smooth and vibration-free in all the range.
Actually I find it very strange that Handlebar-end Weights are not a standard issue on the parallel twins (not even on accessories) when they are standard in all the other Triumph range
I just don’t mention how much I paid to have this installed to avoid being accused of having “hidden agendas”
Ask your dealer!