
Ariel 4G Square Four 1000
Key specifications
Overview
### Introducing the 1936 Ariel 4G Square Four 1000 Step back in time to the golden age of motorcycling with the 1936 Ariel 4G Square Four 1000, a remarkable machine that embodies the innovation and spirit of pre-WWII engineering. Known for its unique square four-cylinder engine configuration, the Ariel 4G stands out not just for its aesthetic appeal but for its performance in the all-round motorcycle category. With a displacement of 997cc and producing a respectable 35 horsepower, it was designed to appeal to riders looking for both style and substance in their motorcycles, blending classic charm with groundbreaking technology for its time. ### Engine Performance and Riding Characteristics At the heart of the Ariel 4G is its distinctive square four-cylinder engine, which not only delivers a smooth power band but also provides a unique auditory experience while riding. Capable of reaching a top speed of 140 km/h (87 mph), the 4G offers a thrilling ride, especially when you rev it up to 5500 RPM, where it truly shines. With a compression ratio of 6.0:1 and a sophisticated air-cooled setup, this motorcycle is well-equipped to handle long rides. The 4-speed gearbox allows for seamless gear transitions, making it a pleasure to ride through winding roads or open highways. The bike's power-to-weight ratio of 0.1813 HP/kg ensures that it feels agile and responsive, giving riders the confidence they desire on the road. ### Key Features and Technology The 1936 Ariel 4G Square Four is not just about power; it also boasts a host of features that were ahead of its time. The tubular single-loop frame contributes to the bike's stability and agility, while the telescopic fork front suspension and plunger-link rear suspension work harmoniously to provide an enjoyable ride over various terrains. Stopping power is provided by solid drum brakes, with an 8-inch diameter front brake and a 7-inch rear brake, ensuring that you can stop as confidently as you accelerate. Additionally, with a fuel capacity of 23 liters (6.08 gallons), long-distance rides are well within reach, making the 4G not just a machine for sport, but also a capable long-distance companion. ###
Pros
Cons
- Unique Engine Design: The square four-cylinder configuration offers a smooth power delivery and distinctive sound.
- Comfortable Ride: Advanced suspension systems make it suitable for both urban and long-distance touring.
- Classic Aesthetics: Its vintage styling appeals to enthusiasts and collectors, making it a standout piece.
- Weight: At 193 kg (425.5 lbs), it may feel heavy compared to modern motorcycles, which could affect maneuverability for some riders.
- Braking Performance: The drum brakes, while adequate for the time, may not provide the stopping power expected by today's standards.
- Kick Start Only: The absence of an electric starter might be a drawback for some riders who prefer the ease of modern starting technology.
Technical details
Source specification data
- Make
- Ariel
- Model
- 4G Square Four 1000
- Category
- Allround
- Starter
- Kick
- Power
- 35.00 HP (25.5 kW)) @ 5500 RPM
- Gearbox
- 4-speed
- Top Speed
- 140.0 km/h (87.0 mph)
- Engine Type
- Double twin cylinder arranged as a square
- Fuel System
- Carburettor. SU MC2 carburettor
- Bore X Stroke
- 65.0 x 78.0 mm (2.6 x 3.1 inches)
- Compression
- 6.0:1
- Displacement
- 997.00 ccm (60.84 cubic inches)
- Cooling System
- Air
- Engine Details
- Square four cylinder
- Valves Per Cylinder
- 2
- Transmission Type Final Drive
- Chain
- Dry Weight
- 193.0 kg (425.5 pounds)
- Fuel Capacity
- 23.00 litres (6.08 gallons)
- Overall Length
- 2,083 mm (82.0 inches)
- Power Weight Ratio
- 0.1813 HP/kg
- Wheels
- Wire spoked
- Rear Tyre
- 4.00-18
- Frame Type
- Tubular single loop
- Front Tyre
- 3.25-19
- Rear Brakes
- Expanding brake (drum brake)
- Front Brakes
- Expanding brake (drum brake)
- Rear Suspension
- Plunger-link spring
- Front Suspension
- Telescopic fork
- Rear Brakes Diameter
- 178 mm (7.0 inches)
- Front Brakes Diameter
- 203 mm (8.0 inches)