What is the engine displacement of Yamaha XSR155?

The Yamaha XSR155 uses the same 155 cc liquid-cooled, single-cylinder, 4-valve engine with Variable Valve Actuation (VVA) technology. On the Thai-spec model, the motor produces 19 bhp at 10,000 rpm and 14.7 Nm of peak torque at 8500 rpm. The motor is paired with a 6-speed gearbox and gets a slipper and assist clutch.