The motorcycles for the film, based on hardtail frames and Panhead engines, were designed and built by chopper builders Cliff Vaughs and Ben Hardy, following ideas of Peter Fonda, and handled by Tex Hall and Dan Haggerty during shooting.
Model created in 3D Studio Max 2009 and converted in multiple formats. All formats include materials and texture maps. The Max format uses mental ray materials and render. There's no need for a third party plugin or anything else, just drop your model in the scene and hit render.
One HDRI map included.