Pirelli Angel GT Rear Tire (170/60ZR17) The longest-lasting Sport Touring tire: 100% Italian Gran Turismo. The ideal tire for travelers using the bike for long road trips, with side bags and passenger, looking for safety on wet, stability and mileage. Extended Mileage Sport (EMS) - The evolution of the Angel&trade; ST, stretching the concept of Sport Touring into Gran Turismo, bringing the sporty attitude to a wider range of usage conditions and for longer distances. Now with Pirelli's bi-compound technology. The new reference for mileage in sport touring tires.