Model name: YZ50QT-22
Engine type: 139QMB
Displacement(ml): 49.5
Engine style: single-cylinder, 4-stroke, air-cooled
Borexstroke (mm): 39.0x41.5
Compression ratio: 10.5:1
Ignition: CDI
Battery: 12V
Fuel tank: 6.5L
Starter: Electric and kick   
Wheel base (mm): 1240
Net weight (kg): 70
Max load (kg): 100
Fr brake/Rr brake: Disk/drum
Max speed (kph): 50
Front tire: 3.0-10
Rear tire: 3.0-10
Wheel: Aluminum
Overall dimensions (mm):  1760×650×1060
Available Specifications: 125CC/150CC engine、2 stroke