Any one here install riser to their r18?
https://www.wunderlichamerica.com/bmw-r18-handlebar-risers-25mm-black-chrome.html
Wunderlich has one will become available.
the brake and clutch lines must be change in order to install the riser.
For the engine oil yes it is 10w50
I believed that bmw using the same 541 oil fiter that fits R nine T and oil cool engine.
For the gear oil and final drive oil that is my question.
I have been using the 75w90 on R nine T and R1200GS oil cool for many years without a problem.
Just wondering...