It appears you're interested in specifications for the Aprilia Tuono 660. This Prototype / concept model model is powered by a Twin, four-stroke engine with 660.0 ccm (40.27 cubic inches) of actual displacement before compression. Fueling is metered via Injection allowing this machine to produce its 95.0 HP (69.3 kW) horsepower and torque. According to our records engine heat of the Aprilia Tuono 660 is moderated by Liquid. You'll need to get familiar with the transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 120/70-17 and the rear is 180/60-17 . The entire package is supported by the frame, Twin-spar aluminum. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Double disc. Brembo four-piston front brakes and Single disc. Brembo rear brakes. The Aprilia Tuono 660 was launched in 2020, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.