[Oh Haha]

Obviously hard to diagnose at the keyboard but them me throw a couple of things at you:

Are the tires directional and on the correct way? Yes, it happens.

How old are the tires? You can get strange sounds from worn tires.

Are the rear tires worn in a funky pattern?

Do you have any grinding going up or down through the gears?

Does the speedometer fluctuate with the tach?


I'm heading out for a drive in mine for a few hours. I'll check back when I return. Not sure of the time difference in Belgium but maybe we can come up with some new info today still.