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Aprilia RS4 50
2017Sportbike

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 2017 Aprilia RS4 50, a striking entry into the sport motorcycle segment that expertly combines cutting-edge technology with a sporty aesthetic. Positioned for young riders and enthusiasts looking for a thrilling yet manageable experience, the RS4 50 embodies the spirit of performance and agility. With its sleek lines and aggressive stance, this bike not only turns heads but also promises an exhilarating ride that reflects Aprilia’s racing heritage. At the heart of the RS4 50 lies a feisty 49.90cc single-cylinder, two-stroke engine that delivers a punchy performance perfect for both urban commuting and spirited rides. With a compression ratio of 11.5:1 and a six-speed gearbox, this motorcycle offers a responsive throttle and seamless gear transitions, allowing riders to carve through corners with confidence. The liquid cooling system ensures optimal engine performance, while the electronic CDI ignition provides reliable starts and consistent power delivery. The agility of the RS4 50 is further enhanced by its lightweight design and nimble chassis, making it an ideal choice for those new to the sport or seasoned riders seeking a fun and lightweight companion. The Aprilia RS4 50 is packed with features that elevate the riding experience. Its advanced suspension system, featuring a 41mm upside-down fork at the front and an asymmetric swingarm with a monoshock at the rear, provides superb handling and stability, absorbing bumps with ease. The braking system, with a radial 4-piston caliper on a 300mm front disc and a 218mm rear disc, ensures strong stopping power, giving riders the confidence to push their limits. Additionally, the electric starter and a fuel capacity of 14.50 liters (3.83 gallons) ensure that the RS4 50 is ready for both quick rides and longer journeys, while the choice of vibrant black or yellow color options allows for personalization. **

Pros

  • Lightweight and Agile: The compact design and low seat height make the RS4 50 easy to maneuver, perfect for novice riders.
  • Strong Performance: The potent two-stroke engine provides an exciting power delivery that makes every ride exhilarating.
  • Advanced Braking and Suspension: Equipped with high-quality brakes and a sophisticated suspension system, riders can enjoy precise handling and confidence-inspiring stopping power.

Cons

  • Limited Power for Experienced Riders: While ideal for beginners, seasoned riders may find the 50cc engine lacking in absolute power.
  • Two-Stroke Maintenance: The two-stroke engine requires more frequent maintenance and care compared to four-stroke counterparts.
  • Adjustable Seat Height Not Standard: Although the seat height is suitable for many, it is fixed at 820 mm, which may not accommodate all riders comfortably without aftermarket adjustments.

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.
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
218 mm (8.6 inches)
Front Brakes Diameter
300 mm (11.8 inches)

Available colors

Blackyellow