Universal RD 350 Style Black Handlebar Anti Vibration Custom Handle for Royal Enfield Classic, Bullet, Meteor A vibratory bowl feeder lines the rings up using centrifugal force and a tilted track the parts orient themselves because their center of gravity isn't at the geometric center. The mechanism was Bike Handle Bar Bullet Vibration Reduction Rod Handlebar Accessories Adjustable LEVER Vibration ROD With Mobile Holder Enfield Handle Bullet Vibration Reduction Rod ROYAL BULLET ACCESSORIES WORLD Vibration Rod With Mobile Holder