Ariel 4G Square Four Mark II

Introducing the 1958 Ariel 4G Square Four Mark II The 1958 Ariel 4G Square Four Mark II, affectionately known as the "Squariel," stands as a testament to the innovative engineering and stylish design of mid-20th century motorcycles. Positioned in the all-rounder category, this motorcycle seamlessly blends performance with practicality, appealing to riders who appreciate both spirited performance and everyday usability. Designed by the illustrious Edward Turner, the Mark II model introduced enhancements over its predecessor, making it a coveted classic among enthusiasts and collectors alike. With its deep red finish and distinctive square four-cylinder configuration, the Ariel 4G is not just a motorcycle; it's a piece of history that commands attention on and off the road. Engine Performance and Riding Characteristics At the heart of the Ariel 4G Square Four is a robust 995 cc square four-cylinder engine, delivering a commendable 45 horsepower at 5,500 RPM. This powertrain, coupled with a 4-speed gearbox and a chain final drive, propels the motorcycle to a top speed of 160 km/h (99.4 mph), making it a formidable performer on the open road. The air-cooled engine features a compression ratio of 6.0:1, ensuring a balanced mix of power and efficiency while consuming a frugal 3.04 liters per 100 km (77.38 mpg). Riders will appreciate the smooth, refined delivery of power paired with a comfortable riding posture, making long-distance journeys a pleasurable experience. The bike's weight, at 197.3 kg (435 pounds), strikes a fine balance, providing stability without compromising agility. Key Features and Technology The engineering prowess of the 1958 Ariel 4G is highlighted by its unique design elements and advanced technology for its time. The Mark II features a full cradle frame that enhances rigidity and stability, crucial for confident handling in various riding conditions. Its suspension system combines an oil-damped telescopic fork at the front with a plunger-link spring at the rear, ensuring a smooth ride over uneven terrain. The braking system, featuring drum brakes with a sizable 203 mm rear diameter, offers reliable stopping power. Additionally, the separate barrels and redesigned cylinder head with four exhaust pipes exemplify the cutting-edge design that set the Squariel apart from its contemporaries. For those looking to expand their riding experience, a sidecar option was also available, making the 4G an ideal choice for leisurely rides with a companion. **