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Aprilia RS4 50
2018Sportbike

Aprilia RS4 50

Key specifications

Engine
50 cc
Fuel type
petrol
Fuel capacity
3.8 L
Transmission
6-speed
Seat height
32 mm
Front brakes
Single disc. Radial 4 piston calliper
Rear brakes
Single disc

Overview

Introducing the 2018 Aprilia RS4 50, a spirited addition to the world of sport motorcycles that expertly blends performance with manageable ergonomics, making it an ideal choice for budding riders and enthusiasts alike. Positioned as a lightweight sportbike, the RS4 50 is designed for those who crave the thrill of the open road without sacrificing ease of handling. With its aggressive styling and race-inspired aesthetics, this machine not only makes a bold statement but also embodies Aprilia’s rich heritage in motorsport. At the heart of the RS4 50 is a potent 49.90 cc single-cylinder, two-stroke engine that delivers an exhilarating ride. Its impressive compression ratio of 11.5:1, paired with a sophisticated electronic CDI ignition, ensures snappy throttle response and spirited acceleration. The 6-speed gearbox allows for smooth gear transitions, making it easier to conquer winding roads or urban environments. The bike’s lightweight design and responsive chassis amplify the fun factor, providing riders with a nimble handling experience that is further enhanced by its liquid cooling system, ensuring optimal performance even during extended rides. The 2018 RS4 50 is packed with features that cater to both performance and rider comfort. It boasts a robust braking system with a single disc and a radial 4-piston caliper at the front, ensuring strong stopping power, while the rear features a reliable single disc brake. The 41 mm upside-down fork at the front and asymmetric swingarm with monoshock at the rear provide a plush suspension setup, offering 110 mm and 122 mm of travel, respectively, which helps absorb bumps and enhances stability during aggressive maneuvers. With an electric starter, a comfortable seat height of 820 mm, and a fuel capacity of 14.5 liters, the RS4 50 is as practical as it is exhilarating. Riders can choose from striking color options, including bold black and vibrant yellow, adding a personal touch to their ride. **

Pros

  • Lightweight and Agile: The compact design and low seat height make the RS4 50 easy to handle, perfect for new riders.
  • Impressive Performance: The two-stroke engine offers spirited acceleration and a thrilling riding experience.
  • Advanced Braking System: The robust braking components provide excellent stopping power, enhancing rider confidence.

Cons

  • Limited Power for Experienced Riders: While great for beginners, experienced riders may find the 49.90 cc engine underwhelming for longer or more intense rides.
  • Two-Stroke Maintenance: The two-stroke engine requires more frequent maintenance and attention to keep it running at its best.
  • Minimal Storage Space: The sportbike design limits storage options, which may be a drawback for those who require practicality in their rides.

Technical details

Source specification data

Make
Aprilia
Model
RS4 50
Category
Sport
Starter
Electric
Instruments
LCD screen
Color Options
Black, yellow
Clutch
Multiplate wet clutch
Gearbox
6-speed
Ignition
Electronic with CDI capacity discharge
Driveline
Chain
, 11/53.
Primary
drive:
Gears
, 21/78.
Engine Type
Reed intake valve
Fuel System
Carburettor
Bore X Stroke
39.9 x 39.9 mm (1.6 x 1.6 inches)
Compression
11.5:1
Displacement
49.90 ccm (3.04 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, two-stroke
Emission Details
Euro 2
Lubrication System
Automatic mixer
Transmission Type Final Drive
Chain
Seat Height
820 mm (32.3 inches) If adjustable, lowest setting.
Fuel Capacity
14.50 litres (3.83 gallons)
Overall Width
740 mm (29.1 inches)
Overall Length
1,953 mm (76.9 inches)
Reserve Fuel Capacity
3.30 litres (0.87 gallons)
Rear Tyre
130/70-17
Front Tyre
100/80-17
Rear Brakes
Single disc
Front Brakes
Single disc. Radial 4 piston calliper
Rear Suspension
Asymmetric swingarm with monoshock
Front Suspension
41 mm upside down fork
Rear Wheel Travel
122 mm (4.8 inches)
Front Wheel Travel
110 mm (4.3 inches)
Rear Brakes Diameter
220 mm (8.7 inches)
Front Brakes Diameter
300 mm (11.8 inches)

Available colors

Blackyellow