It appears you're interested in specifications for the Honda SilverWing 400. This Scooter model is powered by a Twin, four-stroke engine with 398.00 ccm (24.29 cubic inches) of actual displacement before 10.8:1 compression. Fueling is metered via Injection allowing this machine to produce its 36.20 HP (26.4 kW) horsepower and 37.00 Nm (3.8 kgf-m or 27.3 ft.lbs) torque. According to our records engine heat of the Honda SilverWing 400 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 120/80-14 and the rear is 150/70-13 . The entire package is supported by the frame, . We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc front brakes and Single disc rear brakes. The Honda SilverWing 400 was launched in 2008, 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.