KR 250

1987 Beta KR 250 Technical Analysis & Specification Breakdown

Engineered by Beta for the motorcycle segment, the 1987 Beta KR 250 relies on a 239 cc (14.6 cu in) liquid-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 10 HP (7.3 kW) at 7,900 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 41.8 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 KR 250 measures 116 kg (256 lbs) wet (curb), translating to a power-to-weight ratio of 0.09 HP/kg (11.6 kg per horsepower). The 9.5-liter (2.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 87 km/h (54 mph).

Within MotoLibrary's Beta archive, this model family spans 3 indexed model years from 1987 to 1989, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.