Originally Posted by
CPRich
I don't think it's a safety issue, it's a fit issue. As described, bags generally fit better that way. YMMV - I know my old bag only fits with wheels in and up (none of the other 7 orientations) in an E70.
Agreed..
If the wheels are away from you and the roller board sitting at an angle, then the board may travel front to back..
If the wheels are facing towards you and the board is sitting on its side unable to travel.. that would seem the logical common sense solution.. so the board doesn't travel front to back..