Rider Triangle: A Motorcycle Fit Studio

Field notes

The simulator asks for measured body segments and motorcycle coordinates rather than relying on a generic rider profile. It calculates endpoint distances and joint angles with the law of cosines, reports valid segment ranges, and lets users overlay a pinned baseline against a changed setup. The page also provides measurement instructions and a methodology trail. Its warnings are unusually explicit: reachable geometry is not the same as comfort or safety, and seat width, suspension sag, boots, and stance remain outside the model.