Jog ZR

2011 Yamaha Jog ZR Technical Analysis & Specification Breakdown

Engineered by Yamaha for the scooter motorcycle segment, the 2011 Yamaha Jog ZR pairs a 49 cc (3 cu in) liquid-cooled single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 3.4 HP (2.5 kW) at 7,000 rpm while maximum torque reaches 3 Nm (2.2 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 40.0 x 39.2 mm (1.6 x 1.5 inches).

On the scales, the Jog ZR measures 85 kg (187 lbs) wet (curb). 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 1,210 mm (47.6 in) wheelbase engineered for quick, flickable steering geometry. The 5.5-liter (1.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 105 km/h (65 mph).

Within MotoLibrary's Yamaha archive, this model family spans 3 indexed model years from 2011 to 2015, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.