Wheel bearings or partly engaged hub most likely. Can also be the tire on that side so first cheap and easy thing to do is to rotate tires front to back, check the balance of the front wheel too. Out of balance wheel = abnormal wear = cyclical noise.

2002 Sporty , Ironman 2.5" spring, 2" body, 15 x 7 ROH wheels, K&N, 15 x 10.5 Simex Centipedes, Powerchip 91.

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