Motorcycle riders in Auckland are gathering for a protest ride over the Auckland Harbour Bridge on Saturday. Photo: Hannah Warburton / StuffPrefer us on GoogleMotorcyclists are gathering in Auckland ahead of a planned protest to ride across the Harbour Bridge on Saturday.The ride, organised by Motorcycle Advocacy Group New Zealand, is aimed at opposing planned ACC motorcycle levy increases.Organisers say the protest is focused on proposed levy changes based on engine size, and concerns over how rider risk is assessed.Riders assembled before a planned convoy across Auckland Harbour Bridge. Photo: Hannah Warburton / StuffMotorcyclists preparing to take part in the convoy. Photo: StuffPolice motorcyclists gather alongside riders ahead of a planned protest ride in Auckland. Photo: StuffRiders on the Auckland Harbour Bridge. Photo: Stuff