Private homepage for owners of 305 models with tips and technical data, also an English section in the German forum.

An Australian online group. News, member information, ride calendar, bike reviews, and technical information.

Information and modifications for this bike. Technical information, modification instructions, equipment reviews, journals, images, and classifieds.

Information organized as questions and answers. General information, maintenance information, modifications, and personal journals.

Technical and how-to information on engine rebuilding, head porting, cams, and tuning. Also images of Classic bikes, and list of available used parts.