Tire changer is specifically designed for motorcycle tire changing 1.5 hp motor Handles 6"- 24" wheel diameter; 2"-10" tire width Strongarm II helps with new generation tires like Touring and Police bikes that have extremely stiff sidewalls using air pressure to assist holding tire's bead in the drop center of wheel, even while turntable is revolving Comes with or without Strongarm II. TIRE CHANGER MC680