Was driving home from bike week in Daytona, all of a sudden I got a noise. Sounded like someone with a small hammer trying to get out of my engine. Noise at -50-60 mph. Coasting down a hill I pull in the clutch and let the motor drop to idle and the noise remains constant (not the engine) checked the obvious like calipers anything I could visibly check. No noise at low speed, any ideas ? someone said wheel bearing ? any trans issues you guys know about. Bike is 07 Ultra Classic 7500 miles.

Thanks
Mark