Ariel 4G Square Four Mark II

### Introducing the 1957 Ariel 4G Square Four Mark II The 1957 Ariel 4G Square Four Mark II, affectionately known by enthusiasts as the “Squariel,” is a striking example of mid-20th century British motorcycle engineering. Positioned in the allround category, it was aimed at riders seeking both performance and versatility. Designed by the renowned Edward Turner, this motorcycle not only turned heads with its unique square four engine configuration but also captivated riders with its blend of style and practicality. With its classic red and chrome finish, the 4G Square Four Mark II stands as a timeless symbol of the era, appealing to both collectors and those nostalgic for the golden age of motorcycling. At the heart of the Squariel lies a robust 995cc square four-cylinder engine, generating a respectable 45 horsepower at 5,500 RPM. This power translates into a top speed of 160 km/h (99.4 mph), allowing riders to experience exhilarating performance on the open road. The engine's design, featuring a compression ratio of 6.0:1 and a dual-valve setup per cylinder, provides a smooth and responsive ride. Paired with a 4-speed gearbox and chain final drive, the Ariel 4G delivers a pleasant balance of power and efficiency, boasting an impressive fuel consumption rate of just 3.04 liters per 100 km (77.38 mpg). Riders can expect a spirited performance, whether navigating city streets or enjoying a long countryside cruise. The 1957 model showcases innovative engineering that was ahead of its time. The redesigned cylinder head features separate barrels, allowing for effective heat dissipation and improved performance. The inclusion of four distinct exhaust pipes enhances airflow, ensuring that the engine runs efficiently. The full cradle frame offers stability and comfort, complemented by an oil-damped telescopic front fork and a plunger-link spring rear suspension that absorbs road imperfections. Safety is not overlooked, as the expanding drum brakes—measuring 178 mm in the front and 203 mm in the rear—provide reliable stopping power. With a fuel capacity of 18.93 liters, riders can embark on longer journeys without the constant need for refueling. ####