TR 6 R Tiger 650

1972 Triumph TR 6 R Tiger 650 Technical Analysis & Specification Breakdown

At the heart of the 1972 Triumph TR 6 R Tiger 650 sport touring motorcycle, Triumph pairs a 649 cc (39.6 cu in) air-cooled twin, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 48 HP (35 kW) at 7,250 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 74 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 TR 6 R Tiger 650 measures 191 kg (421 lbs) wet (curb), translating to a power-to-weight ratio of 0.25 HP/kg (3.98 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 167 km/h (104 mph).

Within MotoLibrary's Triumph archive, this model family spans 2 indexed model years from 1971 to 1972, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.