Geometry plotter
Frames drawn to one scale from the measurements manufacturers publish. Up to three bicycles, aligned on the bottom bracket.
Reach
385mm
Principia RD1 / 51cm:
385
Stack
522mm
Principia RD1 / 51cm:
522
Wheelbase
977mm
Principia RD1 / 51cm:
977
Head angle
72.5°
Principia RD1 / 51cm:
72.5
Seat angle
73.5°
Principia RD1 / 51cm:
73.5
1 bicycle drawn to scale
Dimensions
Published geometry
Each bicycle at its drawn size. Rows with a dimension on the drawing show it while hovered; click to keep it shown.