14 August. Friday 2026
Honda CRF400RX - 2021 Specifications and Reviews
The 2021 Honda CRF400RX is a lightweight enduro bike designed for riders seeking trail versatility and ease of handling. Its 413cc single-cylinder engine delivers responsive power with excellent fuel efficiency, while the compact frame and manageable seat height make it ideal for both beginners and experienced off-road enthusiasts tackling mixed terrain.
2021
General information | |
| Category | Enduro / offroad |
| Year | 2021 |
| Model | Honda CRF400RX |
| | |
Engine and Transmission Specifications | |
| Driveline | Sealed 520 chain; 13T/48T |
| Clutch | Multi plate wet |
| Transmission type | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Ignition | Digital CDi |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection. Electronic Fuel injection with ESMB map selection |
| Valves per Cylinder | 4 |
| Bore x Stroke | 92.0 x 62.1 mm (3.6 x 2.4 inches) |
| Compression | 13.5:1 |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 413.0 ccm (25.20 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Wheels | DID DIRT STAR aluminium wheels. Metzeler Six Days Extreme tires. |
| Rear brakes | Single disc. Hydraulic |
| Diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc. Hydraulic |
| Rear tire | 140/80-18 |
| Front tire | 90/90-21 |
| Rear wheel travel | 315 mm (12.4 inches) |
| Rear Suspension | Showa monoshock using Honda Pro-Link system |
| Front wheel travel | 305 mm (12.0 inches) |
| Front Suspension | Showa 49mm USD fork |
| Trail | 114 mm (4.5 inches) |
| Rake (fork angle) | 27.1° |
| Frame type | Aluminium frame and swingarm |
Physical measures and capacities | |
| Oil capacity | 1.30 litres (1.37 US quarts) |
| Fuel capacity | 7.30 litres (1.93 US gallons) |
| Wheelbase | 1481 mm (58.3 inches) |
| Ground clearance | 336 mm (13.2 inches) |
| Overall width | 839 mm (33.0 inches) |
| Overall length | 2182 mm (85.9 inches) |
| Overall height | 1282 mm (50.5 inches) |
| Seat height | 965 mm (38.0 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 107.6 kg (237.2 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | 3 power modes. Model ID: CRF400RX. |
| Electrical | Lithium-iron-phosphate battery |
| Starter | Electric |
| Color options | Red |
Performance Profile & Rider Fit
Best For
Track25%
City20%
Cornering55%
Daily Riding20%
Touring15%
Passenger5%
Rider Profile
| Best For | This is a competition-oriented enduro machine best suited to intermediate and experienced off-road riders comfortable with a tall, light, aggressive dirt bike. |
| Purpose | Built for serious trail riding, enduro competition, and technical off-road terrain rather than commuting or road use. |
| Rider Fit | The tall 965mm seat height and minimal weight-carrying comfort demand decent rider fitness and inseam length, though its very low 113.9kg mass makes it far easier to muscle around than a big adventure bike. |
| Character | Light, high-revving, and nimble, this bike rewards an aggressive, standing-up riding style and confident throttle control over rough, technical ground. |
| Not Ideal For | It is a poor choice for riders wanting a plush highway tourer, a passenger-friendly bike, or a low-maintenance daily commuter. |
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 CRF400RX is a powerful and versatile off-road motorcycle that delivers top-notch performance in a variety of terrains. With a 397cc liquid-cooled, four-stroke engine, this bike offers plenty of power and torque to tackle any off-road challenge. Its lightweight chassis and slim bodywork make it easy to maneuver, while the compact fuel tank provides enhanced agility. The CRF400RX also features a smooth and responsive 6-speed transmission, allowing riders to effortlessly shift gears and maintain control in demanding situations. Whether navigating through tight trails or conquering steep hills, this Honda motorcycle is a reliable option for riders seeking a high-performance off-road experience. In addition to its impressive performance, the 2021 Honda CRF400RX boasts a range of advanced features designed to enhance the riding experience. The bike comes equipped with a Showa suspension system that offers outstanding stability and control, even on rough or uneven terrain. Its electric start system provides added convenience, while the lightweight aluminum frame ensures exceptional handling and responsiveness. With its aggressive styling and cutting-edge technology, the CRF400RX is a standout choice for off-road enthusiasts looking for a dependable and capable motorcycle. Whether you're a seasoned rider or a newcomer to off-road adventures, the 2021 Honda CRF400RX is an impressive option that delivers on power, agility, and performance.Add a Comment
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