Roadster 650

2001 Sachs Roadster 650 Technical Analysis & Specification Breakdown

At the heart of the 2001 Sachs Roadster 650 naked motorcycle, Sachs relies on a 644 cc (39.3 cu in) single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 50 HP (36.5 kW) at 6,750 rpm while maximum torque reaches 56 Nm (41.3 lb-ft) at 6,200 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 77.6 HP per liter and a 550 rpm working window between peak torque (6,200 rpm) and peak power (6,750 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the Roadster 650 measures 165 kg (364 lbs) dry, translating to a power-to-weight ratio of 0.3 HP/kg (3.3 kg per horsepower). Rider ergonomics and chassis geometry center around a 760 mm (29.9 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,490 mm (58.7 in) wheelbase engineered for balanced agility and highway composure. The 20-liter (5.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 170 km/h (106 mph).

Within MotoLibrary's Sachs archive, this model family spans 5 indexed model years from 2001 to 2007, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.