Ariel 4G Square Four 1000 1938 - Specifications & Review

4G Square Four 1000

Article Complete Info

Articleid700117
CategoryAllround
MakeAriel
Model4G Square Four 1000
Year1938

Chassis, Suspension, Brakes & Wheels

FrametypeTubular single loop
FrontbrakesExpanding brake (drum brake)
Frontbrakesdiameter203 mm (8.0 inches)
FrontsuspensionTelescopic fork
Fronttyre3.25-19
RearbrakesExpanding brake (drum brake)
Rearbrakesdiameter178 mm (7.0 inches)
RearsuspensionPlunger-link spring
Reartyre4.00-18
WheelsWire spoked

Engine & Transmission

Borexstroke65.0 x 78.0 mm (2.6 x 3.1 inches)
Compression6.0:1
CoolingsystemAir
Displacement997.00 ccm (60.84 cubic inches)
EnginedetailsSquare four cylinder
EnginetypeDouble twin cylinder arranged as a square
FuelsystemCarburettor. SU MC2 carburettor
Gearbox4-speed
Power35.00 HP (25.5 kW)) @ 5500 RPM
Topspeed140.0 km/h (87.0 mph)
TransmissiontypefinaldriveChain
Valvespercylinder2

Other Specifications

ColoroptionsRed/white
CommentsAlso called ´Squariel´.
StarterKick

Physical Measures & Capacities

Dryweight193.0 kg (425.5 pounds)
Fuelcapacity23.00 litres (6.08 gallons)
Overalllength2,083 mm (82.0 inches)
Powerweightratio0.1813 HP/kg

About Ariel 4G Square Four 1000 1938

The 1938 Ariel 4G Square Four 1000, affectionately known as the 'Squariel,' stands as a testament to the innovative spirit of pre-war motorcycle engineering. Positioned within the allaround category, this motorcycle seamlessly marries classic styling with advanced technical prowess for its time. Ariel, a revered name in the motorcycle world, aimed to capture the hearts of both casual riders and performance enthusiasts alike. The 4G Square Four not only embodies the elegance of the late 1930s but also represents a significant leap in motorcycle design, making it a sought-after piece for collectors and riders who appreciate history on two wheels.

At the heart of the Squariel lies a distinctive square four-cylinder engine, boasting a displacement of 997 ccm and generating a respectable 35 HP at 5500 RPM. With a compression ratio of 6.0:1 and a top speed of 140 km/h (87 mph), this motorcycle excels in delivering a smooth, powerful ride. The unique configuration of the engine contributes to a refined balance and vibration reduction, making long journeys enjoyable. Coupled with a four-speed gearbox and chain final drive, the riding characteristics of the Square Four are characterized by responsive acceleration and effortless cruising. Riders will appreciate the blend of power and agility that allows for both city commuting and open-road adventures.

The 1938 Ariel 4G Square Four showcases several key features that underline its engineering excellence. Its tubular single-loop frame provides strength while keeping the overall weight manageable at 193 kg (425.5 pounds). The combination of telescopic front forks and a plunger-link rear suspension ensures a balanced and comfortable ride, capable of soaking up road imperfections with ease. Safety is addressed through reliable expanding drum brakes at both the front and rear, enhancing stopping power and rider confidence. With a fuel capacity of 23 liters, the Squariel is designed for longer journeys, making it a practical choice for riders looking to explore the open roads in style.

Pros:

  1. Unique Engine Configuration: The square four-cylinder engine design offers a smooth and powerful ride, delivering impressive performance and lower vibrations.
  2. Comfortable Suspension: The combination of telescopic forks and plunger-link rear suspension provides excellent handling and comfort over various terrains.
  3. Classic Aesthetic Appeal: The striking red and white color options coupled with vintage styling make the Squariel a head-turner, perfect for classic motorcycle enthusiasts.

Cons:

  1. Limited Power Output: With only 35 HP, it may not satisfy riders looking for extreme performance compared to modern standards.
  2. Heavier Weight: At 193 kg, it can feel cumbersome for some, particularly in tight or technical riding scenarios.
  3. Kick Start Only: The absence of an electric start can be a drawback for some riders, especially in challenging conditions or for less experienced motorcyclists.

In summary, the 1938 Ariel 4G Square Four 1000 is not just a motorcycle; it's a piece of history that embodies the charm and craftsmanship of its era. Whether you’re an avid collector or a rider who appreciates the vintage allure, the Squariel promises a unique blend of nostalgia and performance that stands the test of time.

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