Motocross Bikes
2020Honda CRF450RX
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The 2020 Honda CRF450RX is a dual-sport motorcycle designed for riders seeking serious off-road capability with street legality. Known for its potent 450cc engine, lightweight titanium fuel tank, and aggressive Dunlop Geomax tires, it excels in challenging terrain and long-distance adventure riding. The electric starter and lithium-ion battery enhance practicality for demanding backcountry expeditions.
- Capacity
- 449.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 107.0 kg
- Seat height
- 960 mm
- Power
- 50.0 HP (36.8 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for cross-country and hard enduro-style off-road riding, with the durability and lighting/spark arrestor considerations typical of a closed-course and trail-legal race bike rather than street commuting.
- Built for
- It has the raw, high-strung feel of a factory-style motocross-derived engine tuned for tractable power delivery over rocks, roots, and trails, rewarding an aggressive, active riding style.
- Not ideal for
- This is not the right choice for new riders, commuters, highway travel, two-up riding, or anyone wanting a comfortable, low-maintenance daily street bike.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 449.0 ccm
- Power
- 50.0 HP (36.8 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.4673 HP/kg (dry)
- Bore x stroke
- 96.0 x 62.0 mm
- Compression
- 13.5:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- CDI
- Valves per cylinder
- 4
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multiplate wet, hydraulically actuated (6 springs, 8 plates)
Dimensions & weight
- Wheelbase
- 1478 mm
- Overall length
- 2182 mm
- Overall width
- 839 mm
- Overall height
- 1282 mm
- Seat height
- 960 mm
- Dry weight
- 107.0 kg
- Wet weight
- 115.7 kg
- Fuel capacity
- 8.50 litres
- Ground clearance
- 328 mm
Chassis & suspension
- Frame
- Semi-double cradle, aluminium twin-spar
- Front suspension
- 49mm inverted Showa fork with rebound and compression damping adjustability
- Rear suspension
- Pro-Link® Showa single shock with adjustable spring preload, rebound and compression damping adjustability
- Front wheel travel
- 305 mm
- Rear wheel travel
- 312 mm
- Rake (fork angle)
- 27.3°
- Trail
- 116 mm
Brakes & wheels
- Front brakes
- Single disc. Two-piston calipers.
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 240 mm
- Front tyre
- 90/90-21
- Rear tyre
- 120/90-18
Other
- Color options
- Red
- Comments
- Titanium fuel tank. Model ID: CRF450RX.
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2017 | 2020 | 2022 | 2025 | 2027 |
|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 450 cc | 450 cc |
| Dry weight | 107 kg | 107 kg | 107 kg | 107 kg | 103 kg |
| Seat height | 960 mm | 960 mm | 965 mm | 958 mm | 950 mm |
| Fuel capacity | 8.3 L | 8.5 L | 8 L | 8 L | 7.2 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Honda CRF450RX?
The 2020 Honda CRF450RX has a Capacity of 449.0 ccm (27.40 cubic inches).
What engine power does the Honda CRF450RX have?
The 2020 Honda CRF450RX has a Power of 50.0 HP (36.8 kW).
How many gears does the Honda CRF450RX have?
The 2020 Honda CRF450RX has a Gearbox of 5-speed.
How much does the Honda CRF450RX weigh?
The 2020 Honda CRF450RX has a Dry weight of 107.0 kg (235.9 pounds).
Shop this bike
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The 2020 Honda CRF450RX motorcycle is an impressive off-road machine that offers powerful performance and advanced technology. With its 449cc engine and lightweight aluminum frame, this bike is designed for maximum agility and responsiveness on the trails. The electric start and selectable engine maps make it easy to customize the bike's performance to suit a variety of riding conditions. Plus, the upgraded suspension and chassis design provide improved handling and stability, giving riders the confidence to take on challenging terrain. Overall, the CRF450RX is a top-notch off-road motorcycle that delivers exceptional performance and versatility.
If you're in the market for a high-performance off-road motorcycle, the 2020 Honda CRF450RX is definitely worth considering. Its powerful engine, lightweight design, and advanced technology make it a standout option for riders looking for a capable and reliable machine. Whether you're hitting the trails for recreational riding or competitive racing, the CRF450RX has the features and performance to tackle any off-road adventure with ease. With its superb handling and responsive power delivery, this bike is sure to impress any rider looking for a top-of-the-line off-road motorcycle.
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