2021 Honda CRF450RX Dyno Test

How much power does Honda’s all-new top-of-the-line cross-country bike make?

Video By: Alec Dare

For the first time since its introduction in 2017, the CRF450RX enjoys a major overhaul for 2021 with the same updates the motocross-focused CRF450R model received including a new frame, swingarm, hydraulic clutch, bodywork, and more. Honda even spec’d hand guards on the cross-country racer in stock trim, which is something we have yearned for in prior years. The CRF450RX also weighs 7 pounds less than the prior-generation model at 250 pounds wet.

On the Dirt Rider dyno, Big Red’s all-new off-roader produced 53.2 hp at 9,400 rpm and 34.3 pound-feet of torque at 7,000 rpm, which is 0.5 less peak horsepower and 1.1 more pound-feet of torque at peak than the outgoing machine. Now, it’s time to take off the Dunlop D404 street tire used for the dyno pulls and mount the stock Dunlop Geomax AT81 tire back on the rear wheel, apply our DeCal Works preprinted number plate backgrounds, and hit the trails to see how the all-new CRF450RX performs in real dirt. Stay tuned for the full review of the bike to come in the near future.

2021 Honda CRF450RX Dyno ChartRobert Martin

2021 Honda CRF450RX Engine Specifications

Engine Type: SOHC, liquid-cooled, four-stroke single-cylinder; 4 valves/cyl.
Displacement: 449cc
Bore x Stroke: 96.0 x 62.1mm
Compression Ratio: 13.5:1
Fuel Delivery: Electronic fuel injection
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