I just read an article from another RV association and it indicated the cost of the Rettrobands were $3,500 - $4,500 for the two front wheels, depending on size. I have a call into a firm that installs them and will update the forum on questions related to warranty, liability, history of coaches with the Rettrobands; i.e., wear and tear on bearings, etc. The Rettroband video indicated there were two type bands that can be installed - polyurethane weighing about 28 lbs and another, heavier composite weighing around 43 lbs I believe.
