Engine Type: 644cc air-cooled dry-sump single-cylinder four-stroke Bore and Stroke: 100.0mm x 82.0mm Compression Ratio: 8.3:1 Fuel System: 42.5mm diaphragm-type CV carburetor Transmission: Five-speed Final Drive: #520 O-ring-sealed chain; 15T/45T Front Suspension: 43mm air-adjustable axle Showa® cartridge fork with 16-position compression-damping adjustability; 11.6 in. travel Rear Suspension: Pro-Link® Showa single-shock with spring-preload, 20-position compression- and 20-position rebound-damping adjustability; 11.0 in. travel Front Brakes: Single 256mm disc with twin-piston caliper Rear Brakes: Single 220mm disc Front Tire: 3.00-21 Rear Tire: 4.60-18 Wheelbase: 57.3 in. Seat Height: 37.0 in. Rake: 27.0 deg. Trail: 4.0 in. Fuel Capacity: 2.8 gal, including 0.6-gallon reserve Dry Weight: 346 lb. (Includes all standard equipment, required fluids and a full tank of fuel.) Colors: White