CB 650 (reduced effect)

1979 Honda CB 650 (reduced effect) Technical Analysis & Specification Breakdown

Positioned in Honda's sport motorcycle lineup, the 1979 Honda CB 650 (reduced effect) features a 627 cc (38.3 cu in) air-cooled in-line four, four-stroke configuration. In factory specification, peak output is rated at 50 HP (36.5 kW) at 8,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 79.7 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the CB 650 (reduced effect) measures 220 kg (485 lbs) wet (curb), translating to a power-to-weight ratio of 0.23 HP/kg (4.4 kg per horsepower). The 18-liter (4.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 175 km/h (109 mph).

Within MotoLibrary's Honda archive, this model family spans 4 indexed model years from 1979 to 1982, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.