Occupant Cell Size:
“Adequate space for safe operation of vehicle”
50 mm clearance for helmet in all directions
Area of Upper Torso:
835 mm radius
Rotate 45 degrees forward from vertical
25 degrees rearwards
7 degrees side to side from centerline
Reference: https://docs.google.com/presentation/d/1loc7T7m6fkJPFJglzr_TXuKfHFAQfwJcG5jjTTXy65Y/edit