Roadster 125
1998 Sachs Roadster 125 Technical Analysis & Specification Breakdown
Engineered by Sachs for the naked motorcycle segment, the 1998 Sachs Roadster 125 utilizes a 124 cc (7.6 cu in) air-cooled v2, four-stroke layout. In factory specification, peak output is rated at 15 HP (10.9 kW), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 121 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 Roadster 125 measures 135 kg (298 lbs) dry, translating to a power-to-weight ratio of 0.11 HP/kg (9 kg per horsepower). Rider ergonomics and chassis geometry center around a 750 mm (29.5 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops.
Within MotoLibrary's Sachs archive, this model family spans 3 indexed model years from 1998 to 2011, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
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