VR-125Z

2007 Hartford VR-125Z Technical Analysis & Specification Breakdown

Built around Hartford's enduro - offroad motorcycle platform, the 2007 Hartford VR-125Z relies on a 124 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 10.4 HP (7.6 kW) at 9,010 rpm while maximum torque reaches 7.9 Nm (5.8 lb-ft) at 7,600 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 83.9 HP per liter and a 1,410 rpm working window between peak torque (7,600 rpm) and peak power (9,010 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 VR-125Z measures 140 kg (309 lbs) dry, translating to a power-to-weight ratio of 0.07 HP/kg (13.46 kg per horsepower). Rider ergonomics and chassis geometry center around a 810 mm (31.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,375 mm (54.1 in) wheelbase engineered for quick, flickable steering geometry. The 12-liter (3.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Hartford archive, this model family spans 2 indexed model years from 2007 to 2013, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.