KX450F Demo Bike. Engine Type: 4-stroke, 1-cylinder, DOHC, water-cooled Displacement: 449cc Bore and Stroke: 96.0 x 62.1mm Cooling: Liquid Compression Ratio: 12.5:1 Fuel System: DFI® with 44mm Keihin throttle body Ignition: Digital CDI with electric start Front Suspension: 49mm inverted coil-spring telescopic fork with adjustable compression and rebound damping/12.0 in. Front Brakes: Single semi-floating 270mm Braking® petal disc with dual-piston caliper Front Tire: 80/100-21 Rear Suspension: New Uni-Trak® with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable preload/12.1 in. Rear Brakes: Single 250mm Braking® petal disc with single-piston caliper Rear Tire: 120/80-19 Dry Weight: 232.3 lb. Fuel Capacity: 1.64 gal. Wheelbase: 58.5 in. Ground Clearance: 13.4 in. Seat Height: 37.6 in. Trail: 4.8 in. Rake: 27.6 deg. Transmission: 5-speed, return shift Final Drive: Chain Colors: Lime Green