It appears you're interested in specifications for the Gilera GP 800. This Scooter model is powered by a Twin, four-stroke engine with 839.30 ccm (51.21 cubic inches) of actual displacement before 10.5:1 compression. Fueling is metered via allowing this machine to produce its 73.97 HP (54.0 kW) horsepower and 76.40 Nm (7.8 kgf-m or 56.4 ft.lbs) torque. According to our records engine heat of the Gilera GP 800 is moderated by Liquid. You'll need to get familiar with the Automatic transmission and pay attention to final drive Belt maintainence. Our best information shows that the front tire size is 120/70-16 and the rear is 160/60-15 . The entire package is supported by the frame, Double cradle, high strength tubular steel trellis.. 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 floating calipers. Metal braided brake hose. front brakes and Single disc. stainless steel disc; floating caliper with two opposing pistons. Metal braided brake hose. rear brakes. The Gilera GP 800 was launched in 2007, 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.