14 August. Friday 2026
Honda CRF450RX - 2021 Specifications and Reviews
The 2021 Honda CRF450RX is a versatile enduro bike designed for off-road enthusiasts seeking reliable trail and competition performance. Its liquid-cooled 449cc four-stroke single-cylinder engine with PGM-FI fuel injection delivers consistent power across varied terrain. Known for Honda's durable engineering and user-friendly characteristics, the CRF450RX excels in both recreational riding and serious enduro competition.
General information | |
| Category | Enduro / offroad |
| Year | 2021 |
| Model | Honda CRF450RX |
| | |
Engine and Transmission Specifications | |
| Driveline | #520 Chain; 13T/50T |
| Transmission type | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Ignition | DC-CDI |
| Fuel control | Single Overhead Cams (SOHC) |
| Fuel system | Injection. Programmed Fuel Injection (PGM-FI) |
| Valves per Cylinder | 4 |
| Bore x Stroke | 96.0 x 62.0 mm (3.8 x 2.4 inches) |
| Compression | 13.5:1 |
| Engine details | 38mm intake valve, titanium; 31mm exhaust, steel |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 449.0 ccm (27.40 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Wheels | Dunlop Geomax AT81 tires |
| Rear brakes | Single disc |
| Diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc. Two-piston calipers. |
| Rear tire | 120/90-18 |
| Front tire | 90/90-21 |
| Rear wheel travel | 312 mm (12.3 inches) |
| Rear Suspension | Pro-Link® Showa single shock with adjustable spring preload, rebound and compression damping adjustability |
| Front wheel travel | 310 mm (12.2 inches) |
| Front Suspension | 49mm inverted Showa fork with rebound and compression damping adjustability |
| Trail | 114 mm (4.5 inches) |
| Rake (fork angle) | 27.7° |
| Frame type | Semi-double cradle, aluminium twin-spar |
| | |
Physical measures and capacities | |
| Fuel capacity | 7.95 litres (2.10 US gallons) |
| Wheelbase | 1481 mm (58.3 inches) |
| Ground clearance | 335 mm (13.2 inches) |
| Seat height | 965 mm (38.0 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 113.9 kg (251.0 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | Model ID: CRF450RX. |
| Electrical | Lithium-ion battery |
| Starter | Electric |
| Color options | Red |
Performance Profile & Rider Fit
Best For
Track55%
City10%
Cornering75%
Daily Riding15%
Touring20%
Passenger5%
Rider Profile
| Best For | This is a serious off-road weapon best suited to intermediate through expert riders who already have dirt bike experience, not a first-ever motorcycle. |
| Purpose | 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. |
| Rider Fit | The tall 37.7-inch seat height, 256-lb wet weight, and aggressive ergonomics demand good rider fitness, leg length, and confidence standing and shifting body weight on rough terrain. |
| Character | 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. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2021 Honda CRF450RX is a powerful and versatile off-road motorcycle that offers exceptional performance and durability. With its 449cc engine and lightweight chassis, this bike is ready to tackle rugged terrain and deliver a thrilling riding experience. Its advanced suspension system and adjustable settings make it easy to customize the bike to your specific riding style and preferences. Whether you're hitting the trails or competing in off-road races, the CRF450RX is designed to handle it all with ease. In addition to its impressive performance, the 2021 Honda CRF450RX also boasts a sleek and modern design that is sure to turn heads. The bike's aggressive styling and bold graphics make it stand out on the trail, while its comfortable ergonomics and intuitive controls ensure a confident and enjoyable ride. With Honda's legendary reputation for reliability and quality, the CRF450RX is a top choice for riders who demand the best in off-road performance. Whether you're a seasoned off-road enthusiast or a novice looking to take your riding to the next level, the 2021 Honda CRF450RX is a capable and exciting option that is sure to impress.Add a Comment
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