Mio Z

2017 Yamaha Mio Z Technical Analysis & Specification Breakdown

At the heart of the 2017 Yamaha Mio Z scooter motorcycle, Yamaha utilizes a 125 cc (7.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 9.4 HP (6.9 kW) at 8,000 rpm while maximum torque reaches 9.6 Nm (7.1 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 75.2 HP per liter and a 2,500 rpm working window between peak torque (5,500 rpm) and peak power (8,000 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 Mio Z measures 98 kg (216 lbs) dry, translating to a power-to-weight ratio of 0.1 HP/kg (10.43 kg per horsepower). Rider ergonomics and chassis geometry center around a 760 mm (29.9 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,260 mm (49.6 in) wheelbase engineered for quick, flickable steering geometry. The 4.2-liter (1.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Yamaha archive, this model family spans 2 indexed model years from 2017 to 2021, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.