Born To Rule Inspired by the legendary Tuono V4 1100, infused with RS 660 innovation. The Tuono 660 Factory takes the essence of Aprilia racing and distils it into an agile, intrepid high-performance motorbike. A Euro 5+ 105-hp twin-cylinder engine combines with an ultra-lightweight structure for a category-topping power-to-weight ratio that delivers one of the most exhilarating rides you'll ever experience on the road. Impressive power is complemented by total control courtesy of fully-adjustable Öhlins suspension, Brembo brakes and the advanced a-PRC electronics suite.