Mongoose 90

2013 Kymco Mongoose 90 Technical Analysis & Specification Breakdown

Built around Kymco's atv motorcycle platform, the 2013 Kymco Mongoose 90 utilizes a 89 cc (5.4 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 6.3 HP (4.6 kW) at 7,000 rpm while maximum torque reaches 3.2 Nm (2.4 lb-ft) at 5,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 70.8 HP per liter and a 1,500 rpm working window between peak torque (5,500 rpm) and peak power (7,000 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 Mongoose 90 measures 105.2 kg (232 lbs) dry, translating to a power-to-weight ratio of 0.06 HP/kg (16.7 kg per horsepower). Rider ergonomics and chassis geometry center around a 660 mm (26 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops. The 5.3-liter (1.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Kymco archive, this model family spans 3 indexed model years from 2010 to 2013, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.