Doubt that you'll need one.
Our last rig was an 06 40' Allure and we had a front passenger tire blow out @ highway speeds on a 2 lane road. DW was driving, heard a noise and when I looked out the mirror could see the rubber flying past. She was able to smoothly pull us off to the shoulder (dirt) without any problems.
Tire was destroyed (only some steel belts remaining), tore out fuel fill line and did some other damage but handling was not a problem.
2011 Airstream Classic Limited
2011 GMC Sierra 2500HD Duramax/Allison