Premium Quality Engine Built to Last This brand new 125cc single-cylinder engine delivers reliable power with precision engineering. Featuring advanced air-cooled technology and manual wet multi-plate clutch operation, it's designed for smooth performance and durability. Technical Specifications: Displacement: 119.7ml (52.4×55.5mm bore×stroke) Power Output: 6.5kW max power @ 7500rpm Torque: 8.0Nm @ 5000rpm Compression Ratio: 9.0:1 for efficient combustion Fuel System: PZ16J carburetor with ≤367g/kw.h consumption Transmission: 4-speed manual (1-down, 3-up pattern) .