Hi there, i had a vibration through everything, not an enjoyable one i hasten to add, but the engine also became louder as the months went by, finally had my front 2 wheel bearings replaced, problem solved, so yes, it could be that!! Cost me £412.00, but was well worth it in my eyes!! At same time, i had 4 new PS3's, so with both done, the ride and reduced noise made me smile again!!