ST 125 Y Cross

2003 Jincheng ST 125 Y Cross Technical Analysis & Specification Breakdown

Built around Jincheng's cross - motocross motorcycle platform, the 2003 Jincheng ST 125 Y Cross utilizes a 125 cc (7.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 11.5 HP (8.4 kW), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 92 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 ST 125 Y Cross measures 75 kg (165 lbs) dry, translating to a power-to-weight ratio of 0.15 HP/kg (6.52 kg per horsepower). Rider ergonomics and chassis geometry center around a 770 mm (30.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance.