Wr125R
2026 Yamaha Wr125R Technical Analysis & Specification Breakdown
Engineered by Yamaha for the motorcycle segment, the 2026 Yamaha Wr125R pairs a 125 cc engine architecture with road-focused gearing. In factory specification, maximum torque reaches 11.3 Nm, transferring power to the rear wheel through a constant mesh 6-speed; multiplate wet clutch gearbox and chain final drive. Internal engine geometry specifies a bore and stroke of 52.0mm × 58.7mm with a 11.2:2 compression ratio.
On the scales, the Wr125R measures 304 kg (670 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 34 mm (1.4 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 56 mm (2.2 in) wheelbase engineered for quick, flickable steering geometry. The 2.1-liter (0.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 8 indexed model years from 2009 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
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