How Rider Triangle calculates your result
Explore an explicit two-dimensional rider model using your measured seat, bars, pegs, and limb lengths. Distinguish reach geometry from comfort or control.
Start with evidence, not a score
Measure rider limb lengths and the seat-relative handlebar and footpeg coordinates for the exact motorcycle and setup. Choose a torso-lean assumption and solve the arm and leg triangles using the law of cosines. Mark physically unreachable endpoints explicitly.
Read the assumptions
Use the schematic to compare input scenarios, not to infer comfort, flat-footing, or safe control. Validate the real motorcycle in person. A two-dimensional diagram cannot guarantee comfort, footing, control reach, clearance, or safe operation. A real-world fit check is essential.
Use a reproducible workflow
Enter your own measurements or import records using the published CSV schema. Save a local scenario before making a change, compare the result, and export a copy with the assumptions intact. Example inputs are not a verified catalog or a live data feed. The source references explain the underlying terminology; they do not independently verify information you enter.