Engine Type686cc liquid-cooled SOHC 4-stroke; 4 valves Bore x Stroke102.0mm x 84.0mm Compression Ratio10.0:1 Fuel DeliveryYamaha Fuel Injection (YFI), 44mm IgnitionTCI: Transistor Controlled Ignition Starting SystemElectric Transmission5-speed w/reverse; wet multiplate clutch Final DriveX-ring chain; 2WD CHASSIS Suspension / FrontIndependent double wishbone w/piggyback high/low-speed compression, rebound and threaded preload adjustment, 9.1-in travel Suspension / RearCast aluminum swingarm w/piggyback high/low-speed compression, rebound and threaded preload adjustment, 10.1-in travel Brakes / FrontDual hydraulic disc Brakes / RearHydraulic disc Tires / FrontAT22 x 7-10 Maxxis® Tires / RearAT20 x 10-9 Maxxis® DIMENSIONS L x W x H72.6 in x 45.5 in x 43.9 in Seat Height32.7 in Wheelbase50.4 in Maximum Ground Clearance9.5 in Fuel Capacity2.9 gal Wet Weight***422 lb LightingDual 30W Krypton headlights and LED brake light OTHER Warranty6 Month (Limited Factory Warranty)