Wunderlich rear bars on my first GTL survived a get off after an encounter with Bambi. The bars were scuffed but unbent and were easily bolted onto my next GTL. The same bar was also subjected to a low speed low side get off on day 10 of the 15' IBR. Both times no damage to the side case. Although they are a bit uncomfortable for the passenger because of the height. I can testify to the durability if you are a solo rider, but cannot recommend if you travel with a pillion.