I change the rear spocket to 41 teeth. Had to shorten the chain to 106 links.
Lower the rpm with about 500 at 100 km/h. Perfect for me.
You notice much improvement on tank range??
Thanks for the advice StefanR, where did you get the rear sprocket from?
I have tried all my local sources and they cannot supply a front or rear sprocket yet as it is such a new bike.
And i will try to fit my aluminium hepco panniers as the panniers do leak in thunderstorm conditions, though my luggage was packed in plastic bags and stayed dry mainly.
Winter project will be making brackets to fit the panniers to the existing mount system.
.