ST 70 DAX

1977 Honda ST 70 DAX Technical Analysis & Specification Breakdown

Positioned in Honda's scooter motorcycle lineup, the 1977 Honda ST 70 DAX relies on a 72 cc (4.4 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 5.2 HP (3.8 kW) at 8,000 rpm, transferring power to the rear wheel through a 3-speed gearbox and chain final drive. With a specific output of 72.2 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 ST 70 DAX measures 77 kg (170 lbs) wet (curb), translating to a power-to-weight ratio of 0.07 HP/kg (14.81 kg per horsepower). The 2.5-liter (0.7 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 75 km/h (47 mph).

Within MotoLibrary's Honda archive, this model family spans 4 indexed model years from 1977 to 1980, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.