Adventure Motorcycles

2021Zongshen Cyclone RX4

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The 2021 Zongshen Cyclone RX4 is an adventure bike for riders who want long-distance comfort with light off-road ability. Its 450cc liquid-cooled single makes 40.2 hp and 37 Nm, with an 810 mm seat, a 204 kg wet weight and a 20-litre tank.

Capacity: 450.3 ccm
Engine: Single, four-stroke
Gearbox: 6-speed
Wet weight: 204.0 kg
Seat height: 810 mm
Power: 40.2 HP (29.4 kW) @ 8000 RPM

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How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail62%

Cornering55%

City riding55%

Daily riding65%

Touring72%

Two-up55%

Track25%

Best for: It's built as an adventure-touring machine, blending light off-road capability with long-distance road comfort thanks to its 20-litre tank and windscreen.
Built for: The RX4 has an unpretentious, practical character, offering respectable torque and a single-cylinder simplicity rather than outright excitement or refinement.
Not ideal for: This is not the right bike for riders chasing high top speeds or track-day thrills, as its single-cylinder 40hp engine and adventure-touring build prioritize versatility over performance.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 810mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2021 Zongshen Cyclone RX4, with a cramped knee angle of around 85 degrees and a slightly forward riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Range and running costs

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Units

Currency

Fuel per litre

Riding a year

Based on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine

Capacity: 450.3 ccm
Power: 40.2 HP (29.4 kW) @ 8000 RPM
CO2 Emissions: 84 CO2 g/km
Torque: 37.0 Nm (3.8 kgf-m) @ 7000 RPM
Engine type: Single, four-stroke
Fuel consumption: 3.60 litres/100 km (27.8 km/l)
Power/weight ratio: 0.1971 HP/kg (wet)
Bore x stroke: 94.5 x 64.0 mm
Compression: 10.7:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Ignition: ECU
Valves per cylinder: 4

Transmission

Gearbox: 6-speed
Transmission type: Manual
Clutch: Wet plate

Performance

Top speed: 160.0 km/h (99.4 mph)

Dimensions & weight

Wheelbase: 1425 mm
Overall length: 2100 mm
Overall width: 880 mm
Overall height: 1390 mm
Seat height: 810 mm
Wet weight: 204.0 kg
Fuel capacity: 20.00 litres
Ground clearance: 210 mm
Oil capacity: 0.90 litres
Carrying capacity: Saddle bags, top box
Dry weight: Not on record - add it

Chassis & suspension

Frame: Steel
Front suspension: Standard hydraulic forks
Rear suspension: Monoshock, non-adjustable

Brakes & wheels

Front brakes: Single disc. ABS
Rear brakes: Single disc. ABS
ABS: Yes
Front tyre: 110/80-19
Rear tyre: 170/70-18

Other

Color options: Blue, silver, white, orange, red
Comments: Windscreen. Chinese bike.

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

Rider Reviews

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MotorcycleDB

The 2021 Zongshen Cyclone RX4 motorcycle is a versatile and affordable adventure bike that offers a great combination of performance, comfort, and off-road capability. With its 445cc single-cylinder engine, the RX4 delivers smooth and linear power delivery that is well-suited for both highway cruising and off-road exploration. The bike also comes equipped with long-travel suspension, durable spoked wheels, and advanced ABS braking system, making it a reliable and capable option for riders looking to take on a variety of terrains.

In addition to its impressive performance, the Zongshen Cyclone RX4 also stands out for its attractive pricing, making it an appealing option for adventure riders on a budget. With its comfortable ergonomics, rugged build quality, and a host of standard features, the RX4 offers a great value proposition in the adventure touring segment. Overall, the 2021 Zongshen Cyclone RX4 is a solid choice for riders looking for a capable and affordable adventure bike that doesn't compromise on comfort or performance.

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