Naked Motorcycles
2021CSC Motorcycles RX4
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2021 CSC Motorcycles RX4 suits the budget-minded adventure-touring rider who values practicality over prestige. Its liquid-cooled 449 cc single makes 42.9 hp, paired with a 20.1 litre tank, inverted forks and an adjustable windscreen for long days on mixed roads. It is best known for offering direct-to-consumer, well-equipped mid-size touring capability at an accessible level.
- Capacity
- 449.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 203.1 kg
- Seat height
- 840 mm
- Power
- 42.9 HP (32.0 kW) @ 8500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a budget-friendly adventure-touring allrounder for mixed pavement and light off-road use rather than outright speed or track performance.
- Built for
- A practical, no-nonsense single-cylinder ADV with modern electronics, long-travel suspension, and factory luggage options for real-world versatility.
- Not ideal for
- Not for riders seeking high-speed highway performance, sharp cornering agility, or premium build refinement.
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 usRange and running costs
Worked out in your browser - nothing is sent to usBased on the published US (EPA-style) fuel economy estimate 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.
Engine
- Capacity
- 449.0 ccm
- Power
- 42.9 HP (32.0 kW) @ 8500 RPM
- CO2 Emissions
- 114 CO2 g/km
- EPA Est. Fuel Consumption
- 4.86 L/100km (48.4 US mpg)
- EPA CO Emissions
- 5.9 CO g/km
- Torque
- 37.0 Nm (3.8 kgf-m) @ 7000 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.2112 HP/kg (dry)
- Bore x stroke
- 94.5 x 64.0 mm
- Compression
- 11.0:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
Performance
- Top speed
- 156.9 km/h (97.5 mph)
Dimensions & weight
- Overall length
- 2101 mm
- Overall width
- 881 mm
- Overall height
- 1389 mm
- Seat height
- 840 mm
- Dry weight
- 203.1 kg
- Fuel capacity
- 20.10 litres
- Carrying capacity
- Molded side cases, mounting racks, top box
Chassis & suspension
- Front suspension
- Inverted forks
- Rear suspension
- Adjustable dual shock absorbers with reservoirs
Brakes & wheels
- Front brakes
- Double disc
- Rear brakes
- Single disc
- Front tyre
- 110/80-19
- Rear tyre
- 150/70-17
Other
- Color options
- Fire Yellow, Sapphire Blue
- Comments
- Adjustable windscreen. Brand previously called California Scooters. Bike imported from China.
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the CSC Motorcycles RX4?
The 2021 CSC Motorcycles RX4 has a Capacity of 449.0 ccm (27.40 cubic inches).
What engine power does the CSC Motorcycles RX4 have?
The 2021 CSC Motorcycles RX4 has a Power of 42.9 HP (32.0 kW) @ 8500 RPM.
How many gears does the CSC Motorcycles RX4 have?
The 2021 CSC Motorcycles RX4 has a Gearbox of 6-speed.
What is the torque of the CSC Motorcycles RX4?
The 2021 CSC Motorcycles RX4 has a Torque of 37.0 Nm (3.8 kgf-m or 27.3 ft.lbs) @ 7000 RPM.
How much does the CSC Motorcycles RX4 weigh?
The 2021 CSC Motorcycles RX4 has a Dry weight of 203.1 kg (447.8 pounds).
Shop this bike
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The 2021 CSC Motorcycles RX4 is a powerful and versatile adventure bike that is perfect for all types of terrain. With a 450cc engine, this motorcycle offers plenty of power for long-distance rides and off-road adventures. The rugged design and durable construction make it a reliable choice for any rider looking to tackle challenging trails and explore new destinations. Whether you're cruising on the highway or navigating rocky paths, the RX4 delivers a smooth and stable ride with excellent handling.
CSC Motorcycles has truly delivered a game-changing adventure bike with the 2021 RX4. The combination of power, performance, and durability make it a top choice for riders who demand versatility and reliability from their motorcycles. With its impressive off-road capabilities and comfortable riding position, the RX4 is the perfect motorcycle for exploring remote areas and taking on new challenges. Whether you're a seasoned adventurer or a beginner looking to tackle new terrain, the 2021 CSC Motorcycles RX4 is a solid choice that won't disappoint.
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