... Type1P39FMB/150FMG/152FMHEngine Name50/100/110Engine Mode,Single cylinder, 4-stroke,air-cooling, camshaft downward,Displacement(ml)49/97/106Dimension( ... .m/r/min)2.4/4000±5%,6.5/6000±5%Compression Ratio8.91Bore and Stroke(mm×mm)39×41. ... gearshiftChosen model standard model,Applicable Motorcycle Typemini-motorcyclePerformance and characteristic1,,,.4-stroke,2 in 1 magneto, small size, compact structure. ...