
Ariel 4G Square Four 1000
Key specifications
Overview
### Discover the 1944 Ariel 4G Square Four 1000: A Classic Blend of Innovation and Elegance The 1944 Ariel 4G Square Four 1000 stands as a testament to the artistry and engineering prowess of mid-20th century motorcycle design. This all-rounder, affectionately dubbed the "Squariel," was a game-changer in the motorcycle market, perfectly positioned for enthusiasts seeking a balance between performance and style during a time when the world was emerging from the shadows of war. Designed by the illustrious Edward Turner, the 4G Square Four showcased an innovative square four-cylinder engine layout that set it apart from its contemporaries, combining aesthetic appeal with unmatched engineering. At the heart of the 4G Square Four lies its unique engine configuration, a 995 cc square four-cylinder powerhouse that delivers a commendable 35 horsepower at 5,500 RPM. This configuration not only enhances the bike's smoothness but also contributes to a top speed of 87 mph (140 km/h), allowing riders to experience exhilarating acceleration and agility on the open road. With a compression ratio of 6.0:1 and its air-cooled, SU MC2 carburettor fuel system, the 4G Square Four offers a spirited ride, characterized by its linear power delivery and a delightful soundtrack from its dual-valve per cylinder setup. Whether navigating city streets or stretching out on long country roads, this motorcycle is designed to deliver a responsive and engaging riding experience. In addition to its remarkable engine, the 1944 Ariel 4G Square Four boasts several key features that enhance both performance and rider comfort. It is equipped with a tubular single-loop frame that provides stability and strength, complemented by a telescopic front fork and plunger-link rear suspension that smoothens any bumps in the road. The bike's drum brakes—203mm in the front and 178mm in the rear—offer reliable stopping power, ensuring that the rider maintains control even at higher speeds. With a weight of 211 kg (465.2 lbs) and a fuel capacity of 23 liters (6.08 gallons), the 4G Square Four is built for those who appreciate the freedom of the ride, making it an ideal companion for long-distance touring. ####
Pros
Cons
- Unique Engine Configuration: The square four-cylinder engine not only looks impressive but also delivers smooth power and torque, enhancing the overall riding experience.
- Comfortable Suspension: The combination of a telescopic front fork and plunger-link rear suspension provides a comfortable ride, making it suitable for both urban commuting and long-distance travel.
- Classic Aesthetics: With its distinctive design and elegant color options, the 4G Square Four is a head-turner, appealing to vintage motorcycle enthusiasts and collectors alike.
- Weight: At 211 kg (465.2 lbs), the bike may feel heavy for some riders, particularly during low-speed maneuvers or when stopping.
- Braking Performance: While the drum brakes are effective, they may not provide the same level of braking power and responsiveness as modern disc brake systems.
- Kick Start Only: The traditional kick-start mechanism may be less convenient compared to electric start systems found on contemporary motorcycles, potentially deterring some riders.
Technical details
Source specification data
- Make
- Ariel
- Model
- 4G Square Four 1000
- Category
- Allround
- Starter
- Kick
- Comments
- Also
- called ´
- Squariel
- ´.
- Designed
- by
- Edward Turner
- .
- Ariel Motorcycles
- was acquired by the
- A Group
- in 1944.
- Color Options
- Red/silver
- 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
- 995.00 ccm (60.71 cubic inches)
- Cooling System
- Air
- Engine Details
- Square four cylinder
- Exhaust System
- Dual two-into-one
- Valves Per Cylinder
- 2
- Transmission Type Final Drive
- Chain
- Fuel Capacity
- 23.00 litres (6.08 gallons)
- Overall Length
- 2,083 mm (82.0 inches)
- Weight Incl Oil Gas Etc
- 211.0 kg (465.2 pounds)
- Seat
- Solo seat with springs
- Wheels
- Wire spoked. Red and silver rims.
- 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)