ADX 125

2023 Sym ADX 125 Technical Analysis & Specification Breakdown

Built around Sym's scooter motorcycle platform, the 2023 Sym ADX 125 features a 124.9 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 12.1 HP (8.8 kW) at 7,500 rpm while maximum torque reaches 11.5 Nm (8.5 lb-ft) at 7,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 96.9 HP per liter and a 500 rpm working window between peak torque (7,000 rpm) and peak power (7,500 rpm), 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 ADX 125 measures 179 kg (395 lbs) wet (curb), translating to a power-to-weight ratio of 0.07 HP/kg (14.79 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,390 mm (54.7 in) wheelbase engineered for quick, flickable steering geometry. The 15-liter (4 US gal) fuel tank paired with a rated consumption of 2.13 L/100 km provides an estimated theoretical range of roughly 704 km (437 miles) between fill-ups, while factory top speed is listed at 99 km/h (62 mph).

Within MotoLibrary's Sym archive, this model family spans 3 indexed model years from 2023 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.