NH 350 Red Hunter

1958 Ariel NH 350 Red Hunter Technical Analysis & Specification Breakdown

Engineered by Ariel for the allround motorcycle segment, the 1958 Ariel NH 350 Red Hunter relies on a 346 cc (21.1 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 19 HP (13.9 kW) at 5,600 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 54.9 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the NH 350 Red Hunter measures 160 kg (353 lbs) dry, translating to a power-to-weight ratio of 0.12 HP/kg (8.42 kg per horsepower). Rider ergonomics and chassis geometry center around a 787 mm (31 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,422 mm (56 in) wheelbase engineered for balanced agility and highway composure. The 12-liter (3.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 117 km/h (73 mph).

Within MotoLibrary's Ariel archive, this model family spans 14 indexed model years from 1946 to 1959, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.