2020 Kawasaki KX450F , 45.6 HRS Engine and transmission Displacement 449.0 ccm (27.40 cubic inches) Engine type Single cylinder, four-stroke Compression 12.5:1 Bore x stroke 96.0 x 62.0 mm (3.8 x 2.4 inches) Fuel system Injection. DFI® with 44mm Keihin throttle body Fuel control Double Overhead Cams/Twin Cam (DOHC) Ignition Digital CDI Cooling system Liquid Gearbox 5-speed Transmission type Chain (final drive) Clutch Wet multi-disc, manual Chassis, suspension, brakes and wheels Frame type Aluminum perimeter Rake (fork angle) 27.6° Trail 122 mm (4.8 inches) Front suspension 49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping Front wheel travel 305 mm (12.0 inches) Rear suspension Uni-Trak® gas charged shock with piggyback reservoir with dual-range (4 turns stepless high speed/19-way low-speed) compression damping, 38-way rebound damping and adjustable preload Rear wheel travel 307 mm (12.1 inches) Front tire 80/100-21 Rear tire 120/80-19 Front brakes Single disc. Semi-floating petal discs Diameter 270 mm (10.6 inches) Rear brakes Single disc. Single-piston caliper. Diameter 250 mm (9.8 inches) Physical measures and capacities Dry weight 105.2 kg (232.0 pounds) Weight incl. oil, gas, etc 110.0 kg (242.5 pounds) Seat height 955 mm (37.6 inches) If adjustable, lowest setting. Overall height 1275 mm (50.2 inches) Overall length 2185 mm (86.0 inches) Overall width 830 mm (32.7 inches) Ground clearance 340 mm (13.4 inches) Wheelbase 1485 mm (58.5 inches) Fuel capacity 6.20 litres (1.64 US gallons) Other specifications Color options Lime Green Starter Electric