HJ125-29

2020 Haojin HJ125-29 Technical Analysis & Specification Breakdown

Built around Haojin's allround motorcycle platform, the 2020 Haojin HJ125-29 pairs a 124.4 cc (7.6 cu in) air-cooled single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 9.4 HP (6.9 kW) at 8,500 rpm while maximum torque reaches 8.6 Nm (6.3 lb-ft) at 7,000 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 75.6 HP per liter and a 1,500 rpm working window between peak torque (7,000 rpm) and peak power (8,500 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

Rider ergonomics and chassis geometry center around a 1,300 mm (51.2 in) wheelbase engineered for quick, flickable steering geometry. The 10-liter (2.6 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 85 km/h (53 mph).