I just completed 350km run on my Roadster. Just before I arrived home I heard a whirring sound when I accelerated (especially in the corners) It sounded like it was coming from the rear.
It was not constant but seemed more at the 100 to 110kph.
The bike has 5,000km on it. I am going to change the oil and probably change the rear gear oil.
Is this something I should be concerned about and what else should I check?
I bought my R3 on eat-me-bay. Flew from Michigan to Texas to ride it home. Back tire was about half gone (Metzler) it would make a whirring sound in corners. Thought something was wrong with the bike. Now when I hear that sound I know it's about new tire time.