50cc Zonsheng 4 Vlave OHC 3 speed semi auto E Start
Engine Mode ZS139FMB-5
Engine Name Z50
Engine Type Single cylinder, 4-stroke,air-cooling, OHC
Displacement(ml) 49.9cc
Dimension(mm × mm × mm) 450×320×260
Net Weight(kg) 20
Max. Power(kw/r/min) 3.0/9000
Max. Torque (N.m/r/min) 3.5/7500
Compression Ratio 11:1
Bore and Stroke(mm × mm) 39×41.8
Ignition method CDI
Lubrication method Pressure and Splash
Starting method Electric/Kick
Clutch method Auto Wet Multi-Plate Semi auto Rotary shift Down N-1-2-3 back to N
Constant mesh, two stage transmission, 3-speed Gearshift
Primary reduction ratio
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4.059(69/17)
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First gear ratio
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3.273(36/11)
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Second gear ratio
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1.765(30/17)
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Third gear ratio
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1.190(25/21)
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