It appears you're interested in specifications for the Aprilia SRV 850. This Scooter model is powered by a 90° V-twin V2, four-stroke engine with 839.3 ccm (51.21 cubic inches) of actual displacement before compression. Fueling is metered via Injection. Electronic injection with 38 mm single body allowing this machine to produce its 76.0 HP (55.5 kW) @ 7750 RPM horsepower and 76.4 Nm (7.8 kgf-m or 56.4 ft.lbs) @ 6000 RPM torque. According to our records engine heat of the Aprilia SRV 850 is moderated by Liquid. You'll need to get familiar with the Automatic transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 120/70-R16 and the rear is 160/60-R15 . The entire package is supported by the frame, Double cradle in high strength tubular steel. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Double disc. Semi-floating stainless steel discs with two Brembo double piston 28 mm floating callipers. front brakes and Single disc. Double piston calliper rear brakes. The Aprilia SRV 850 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.