Originally Posted by cruising7388
Putting the bikes on the front does facilitate access to the rear doors but the overall length of the coach won't change that much. Also, bikes on the front are more vulnerable to debris and rock chips although there is the argument that every rock chip absorbed by the bike avoids producing one on the vehicle. You also check to see if loading the bikes on the front will produce an unacceptable decrease in ram air to the engine and its peripherals.
True that the bikes are more vulnerable up front - in our case we carry 25 year old beat up inexpensive mountain bikes so not a concern.
I can appreciate it would be more of an issue for those folk who have the fancy $6000 bikes!
I suppose there is the possible technical issue of legality in terms of obstructing vision of blocking headlights.
I have our bike rack height adjusted so that I can barely see the hand grips above the hood line of our truck - just enough for me to know they are still there and secure. We rarely are driving the rig at night, but when we are, I sense a very minor impact on lighting - not enough to make much difference.
In any case in about twenty years of carrying bikes this way many times on teh interstates driving along with police cars, never been an issue - hope I haven't jinxed our next trip.