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Aprilia RS4 50
2015Sportbike

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 2015 Aprilia RS4 50, a machine designed to captivate the hearts of young riders and enthusiasts alike. Positioned squarely in the sport category, this lightweight powerhouse boasts Italian design flair and racing pedigree, making it an ideal entry point into the world of performance motorcycles. With its aggressive styling and track-ready features, the RS4 50 is more than just a beginner bike; it’s a statement of intent for those who crave speed and agility on two wheels. At the heart of the RS4 50 lies a spirited 49.90 cc single-cylinder, two-stroke engine that delivers an exhilarating ride. With a compression ratio of 11.5:1 and a finely-tuned carburettor fuel system, this compact engine generates impressive power, allowing riders to experience the thrill of acceleration as they shift through the six-speed gearbox. The liquid cooling system ensures optimal temperature management, while the multiplate wet clutch provides seamless gear changes, enhancing the overall riding experience. Whether navigating city streets or carving through twisty backroads, the RS4 50's lightweight chassis and agile handling make it a joy to ride, embodying the essence of sportbike performance. The Aprilia RS4 50 is packed with features that elevate its appeal, catering to both novice and seasoned riders. The front and rear braking systems, equipped with a 300 mm single disc and 220 mm rear disc respectively, ensure responsive stopping power, complemented by a radial four-piston caliper for enhanced braking performance. The advanced 41 mm upside-down front fork and asymmetric swingarm with monoshock provide excellent suspension dynamics, absorbing bumps and delivering a smooth ride. With an adjustable seat height of 820 mm, it accommodates a range of rider sizes, while the electric starter adds a touch of modern convenience. Available in striking black and vibrant yellow options, the RS4 50 is as eye-catching as it is functional. **

Pros

  • Lightweight and nimble: The compact design and low seat height make it accessible for new riders while providing agile handling.
  • Performance-oriented engine: The two-stroke engine delivers exhilarating power and a thrilling ride experience.
  • Advanced braking and suspension: High-quality braking and suspension components enhance safety and comfort during rides.

Cons

  • Limited power for experienced riders: While great for beginners, more seasoned riders may find the 49.90 cc engine lacking in power compared to larger sportbikes.
  • Two-stroke maintenance: The two-stroke engine may require more frequent maintenance and attention than four-stroke counterparts.
  • Not suited for long-distance touring: With a smaller fuel capacity and racing-focused design, it’s less ideal for longer commutes or extended rides.

Technical details

Source specification data

Make
Aprilia
Model
RS4 50
Category
Sport
Starter
Electric
Instruments
Analogue rev counter and LCD ccreen
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.
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 Height
1,138 mm (44.8 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, wheel travel 130 mm
Front Suspension
41 mm upside down fork, wheel travel 110 mm
Rear Brakes Diameter
220 mm (8.7 inches)
Front Brakes Diameter
300 mm (11.8 inches)

Available colors

Blackyellow