What is the engine displacement of the 2018 Aprilia RS4 50?

The 2018 Aprilia RS4 50 has an engine displacement of 49.90 ccm (3.04 cubic inches).

What is the seat height of the 2018 Aprilia RS4 50?

The 2018 Aprilia RS4 50 has a seat height of 820 mm (32.3 inches) If adjustable, lowest setting..

2018 Aprilia RS4 50 Price, Specs, Review

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Review

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The 2018 Aprilia RS4 50 represents a gateway into the world of sport biking, drawing heavily from its larger, championship-winning RS siblings. This 50cc supersport machine aims to capture the spirit of Aprilia’s racing heritage in a learner-legal package. It competes directly with other lightweight, sport-oriented 50cc motorcycles such as the Derbi GPR 50 and the Rieju RS3 50, offering a premium option for young riders eager to experience a proper sportbike.

At the heart of the RS4 50 lies a 49.90 ccm (3.04 cubic inches) single-cylinder engine. This two-stroke unit utilizes a reed intake valve, a design chosen for its responsiveness and power delivery characteristic of smaller displacement engines. While the RS4 50 isn't about outright speed, its engine provides sufficient motivation for its intended purpose. Fuel capacity is generous for its class, with a 14.50 litres (3.83 gallons) tank allowing for extended rides between fill-ups.

Riding the Aprilia RS4 50 offers a genuine sportbike experience, albeit scaled down. Its ergonomics are distinctly track-focused, featuring clip-on handlebars and rearset pegs that encourage an aggressive, tucked-in riding posture. The seat height is 820 mm (32.3 inches), and while it's the lowest setting if adjustable, it provides a commanding view for the rider. This setup, combined with a lightweight chassis, contributes to agile handling and a connected feel, making it an engaging machine for learning cornering techniques and developing riding skills.

The 2018 Aprilia RS4 50 is ideally suited for aspiring sportbike riders, particularly younger individuals or those new to motorcycling who appreciate genuine sport styling and handling. It's a stepping stone for those who envision themselves on larger, more powerful sportbikes in the future. As a category: Sport motorcycle, it delivers on its promise of an authentic, albeit entry-level, performance experience, making it a compelling choice for its target demographic.

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Pros (Advantages)

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✅ Why buy this bike?

The Aprilia RS4 50 2018 is a stylish and sporty-looking motorcycle, appealing to younger riders and those who appreciate a sleek design.
It is equipped with a powerful 50cc engine, providing a thrilling and responsive riding experience while still being suitable for learners and new riders.
The RS4 50 features top-notch components such as inverted front forks, radial brake calipers, and a high-quality chassis, offering excellent handling and performance.
This motorcycle comes from a reputable Italian manufacturer known for producing high-performance bikes, ensuring reliability and quality craftsmanship.
The Aprilia RS4 50 is a great choice for riders looking to transition from smaller displacement bikes to larger ones, serving as a stepping stone in their riding journey.

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Cons (Disadvantages)

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⚠️ Things to consider

Limited power output due to being a 50cc engine, which may not be sufficient for highway speeds or aggressive riding.
Small fuel tank capacity, requiring frequent stops for refueling on longer rides.
High maintenance costs associated with premium components and Italian engineering.
Limited comfort for taller riders due to the compact size of the bike.
Higher insurance costs for younger riders due to the sporty nature of the bike and its classification as a high-performance vehicle.

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Alternatives

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⚖️ Comparison & Competition

Yamaha YZF-R3: The YZF-R3 is a popular choice for entry-level riders looking for a sporty and agile ride. It features a 321cc parallel-twin engine, sleek design, and comfortable ergonomics.
KTM RC 390: The RC 390 is a high-performance sportbike known for its sharp handling and powerful 373cc single-cylinder engine. It offers a more aggressive riding position compared to the Aprilia RS4
Honda CBR500R: The CBR500R is a versatile sports bike with a 471cc parallel-twin engine that delivers a good balance of power and fuel efficiency. It is suitable for both daily commuting and weekend rides.
Kawasaki Ninja 400: The Ninja 400 is a lightweight and nimble sportbike powered by a 399cc parallel-twin engine. It is known for its user-friendly nature and sporty styling.
Suzuki GSX250R: The GSX250R is a budget-friendly option for riders looking for a sporty commuter bike. It features a 248cc parallel-twin engine, comfortable riding position, and attractive design

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License Class (EU)

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Rule of thumb: under 125cc / 15HP → A1, under 47HP → A2, above → A.

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Fuel Economy & Running Costs

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Estimated average for 50cc class: 75-100 mpg (2.5-3.5 L/100km)

⛽ Tank: 14.50 litres (3.83 gallons)

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Insurance Class

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