International Model 30

1953 Norton International Model 30 Technical Analysis & Specification Breakdown

Built around Norton's sport motorcycle platform, the 1953 Norton International Model 30 pairs a 490 cc (29.9 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 29.5 HP (21.5 kW) at 5,500 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 60.2 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

Rider ergonomics and chassis geometry center around a 1,391 mm (54.8 in) wheelbase engineered for quick, flickable steering geometry.

Within MotoLibrary's Norton archive, this model family spans 12 indexed model years from 1947 to 1958, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.