Beast

2019 Izuka Beast Technical Analysis & Specification Breakdown

Built around Izuka's atv motorcycle platform, the 2019 Izuka Beast pairs a 149 cc (9.1 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 9.4 HP (6.8 kW) at 7,500 rpm while maximum torque reaches 9 Nm (6.6 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 63.1 HP per liter and a 1,500 rpm working window between peak torque (6,000 rpm) and peak power (7,500 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 Beast measures 147 kg (324 lbs) wet (curb), translating to a power-to-weight ratio of 0.06 HP/kg (15.64 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, combined with a 1,100 mm (43.3 in) wheelbase engineered for quick, flickable steering geometry. The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 85 km/h (53 mph).