16 lines (10 with data), 430 Bytes

AnyFolder WheelParameters = {
  AnyVec3 Hub = {0.35, -0.0, 0.3}; // Center of the wheel
  AnyVar Rad = 0.17;               // Radius of the wheel
  
  // Movement of the wheel
  AnyVar Omega = 50;             // Wheel angular velocity, degrees/sek
  AnyVar M = DesignVar(-8);                 // Wheel moment

};

AnyFolder ChairParameters = {
  AnyVec3 HandRest = {0.2, 0.0, -0.25};  // Rest for the left hand
};