Works on my Victory Vision. I'm using a 195/55R16 Dunlop Winter Sport run flat snow tire. Tire pressure 38 psi. I did an 11,000 mile trip in 2012 that included a stop in Key West, FL and Prudhoe Bay, AK. I had rain everyday from Key West to the Alaska border. I had interstate, two lane mountain roads and 100's of miles of gravel/mud. Based on the results from that trip I installed another Winter Sport.