Motocross Bikes
2019Honda CRF450RX
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The 2019 Honda CRF450RX is a dual-sport motorcycle designed for off-road enthusiasts seeking a versatile, trail-capable machine. Known for its reliable electric and kick-start system, manageable 257-pound weight, and Dunlop Geomax tires, it excels in mixed terrain riding. The model suits intermediate to experienced riders prioritizing accessibility without sacrificing genuine dirt-bike capability.
- 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)
What’s new for the 2019 Honda CRF450RX
vs the 2018| Spec | 2018 | 2019 |
|---|---|---|
| Fuel capacity | 8.30 litres (2.19 US gallons) | 8.50 litres (2.25 US gallons) |
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 & kick
- Ignition
- Full transistorized with electronic advance
- 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
- 1476 mm
- Overall length
- 2182 mm
- Overall width
- 839 mm
- Overall height
- 1282 mm
- Seat height
- 960 mm
- Dry weight
- 107.0 kg
- Wet weight
- 116.6 kg
- Fuel capacity
- 8.50 litres
- Ground clearance
- 328 mm
- Reserve fuel capacity
- 1.60 litres
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)
- 27.2°
- 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
- 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 | 2019 | 2020 | 2022 | 2025 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 449 cc | 450 cc | 450 cc |
| Dry weight | 107 kg | 107 kg | 107 kg | 107 kg | 107 kg | 103 kg |
| Seat height | 960 mm | 960 mm | 960 mm | 965 mm | 958 mm | 950 mm |
| Fuel capacity | 8.3 L | 8.5 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 2019 Honda CRF450RX has a Capacity of 449.0 ccm (27.40 cubic inches).
What engine power does the Honda CRF450RX have?
The 2019 Honda CRF450RX has a Power of 50.0 HP (36.8 kW).
How many gears does the Honda CRF450RX have?
The 2019 Honda CRF450RX has a Gearbox of 5-speed.
How much does the Honda CRF450RX weigh?
The 2019 Honda CRF450RX has a Dry weight of 107.0 kg (235.9 pounds).
Shop this bike
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The 2019 Honda CRF450RX is a powerful and versatile off-road motorcycle that is perfect for riders looking for a high-performance ride. With its 449cc Unicam engine, lightweight chassis, and cutting-edge suspension, the CRF450RX is built to handle the toughest terrains with ease. Whether you're hitting the trails or competing in a race, this bike delivers impressive power and agility, making it a top choice for off-road enthusiasts.
One of the standout features of the 2019 Honda CRF450RX is its innovative chassis design, which provides excellent handling and maneuverability. The bike's advanced suspension system ensures a smooth and controlled ride, while the powerful engine delivers impressive acceleration and top-end power. With its durable construction and high-quality components, the CRF450RX offers reliability and performance that riders can count on. Overall, the 2019 Honda CRF450RX is a top-of-the-line off-road motorcycle that delivers exceptional power, agility, and handling for riders who demand the best. Whether you're tackling challenging trails or competing in off-road events, this bike is sure to impress with its performance and capabilities. If you're in the market for a high-performance off-road motorcycle, the CRF450RX is definitely worth considering.
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