Video By: Bert Beltran
The 2020 Kawasaki KX450 has a starting suggested retail price of $9,299 and is available in green. Powering this Japanese motorcycle is a liquid-cooled, DOHC, four-valve, 449cc four-stroke engine.
We ran the KX450 on our rear-wheel dyno to determine peak output from Kawasaki’s flagship motocross bike. We documented 51.9 hp at 9,200 rpm and 32.9 pound-feet of torque at 6,800 rpm.
“The KX450 engine is very reactive, and the throttle response is quick and snappy!” —Tanner Basso
- Engine Specifications
- Engine Type: Liquid-cooled, DOHC, four-stroke single-cylinder; 4 valves/cyl.
- Bore x Stroke: 96.0 x 62.1mm
- Displacement: 449cc
- Compression Ratio: 12.5:1
- Fuel Delivery: Electronic fuel injection
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