2020 Suzuki RM-Z450 Dyno Test

How much power does Suzuki’s 450 motocross bike make in 2020?

Video By: Bert Beltran

The 2020 Suzuki RM-Z450 has a starting suggested retail price of $8,999 and is available in yellow. Powering this Japanese motorcycle is a liquid-cooled, DOHC, four-valve, 449cc four-stroke engine.

We ran the RM-Z450 on our rear-wheel dyno to determine peak output from Suzuki’s flagship motocross bike. We documented 49.9 hp at 8,900 rpm and 32.4 pound-feet of torque at 7,600 rpm.

2020 Suzuki RM-Z450 Dyno Chart
2020 Suzuki RM-Z450 Dyno ChartRobert Martin

"The Suzuki engine seems to perform the best in the midrange, so if you can manage to keep it there throughout the entire track, it offers decent performance." — Eric Storz

2020 Suzuki RM-Z450 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