I have a 2012 RKC, and when turning or weaving going down the highway, I experience a vibration in the bars, kind of like a buzz in the grips, I know on a car when this happens you have a bad wheel bearing. I happens both directions, any ideas?

 

Tires. Especially notice it on really smooth pavement.

 

Wheel bearings, especially if it happens both right and left steer.

How many miles on the tires? Have you checked pressures?

 

Check for tire cupping, especially in the rear.

 

Bike has 6500 miles on it. Original tires. 40 psi in rear, 35 in front. Didn't notice any cupping on tires. Maybe something else that might enter into it. When the bike was new, it was rock solid behind a truck, cross winds didn't bother it, or tar snakes. I took it in for the 1000 check and ever since then it has felt looser. The dealer said they didn't do anything out of the ordinary. They did adjust the steering head bearings and check the alignment on it. It goes back in next week to check all this stuff, but I wanted some ideas from the " Experts" on here.

 

tires, I think its just the way the tires are built. mine does the same thing, you can even hear it buzz when your on the edge of the tire in a corner

 

Yeah, this - me too. No big deal.