Comet Grand Prix 125 RS

1976 KTM Comet Grand Prix 125 RS Technical Analysis & Specification Breakdown

Positioned in KTM's sport motorcycle lineup, the 1976 KTM Comet Grand Prix 125 RS utilizes a 124 cc (7.6 cu in) air-cooled single cylinder, two-stroke layout. In factory specification, peak output is rated at 17 HP (12.4 kW) at 7,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 137.1 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 Comet Grand Prix 125 RS measures 111 kg (245 lbs) wet (curb), translating to a power-to-weight ratio of 0.15 HP/kg (6.53 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 120 km/h (75 mph).

Within MotoLibrary's KTM archive, this model family spans 2 indexed model years from 1975 to 1976, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.