CB 450 disc

1975 Honda CB 450 disc Technical Analysis & Specification Breakdown

Built around Honda's classic motorcycle platform, the 1975 Honda CB 450 disc utilizes a 445 cc (27.2 cu in) air-cooled twin, four-stroke layout. In factory specification, peak output is rated at 45 HP (32.8 kW) at 9,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 101.1 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the CB 450 disc measures 204 kg (450 lbs) wet (curb), translating to a power-to-weight ratio of 0.22 HP/kg (4.53 kg per horsepower). The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 171 km/h (106 mph).

Within MotoLibrary's Honda archive, this model family spans 4 indexed model years from 1972 to 1975, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.