56mm bore, Height cylinder: 78.40 mm, Diameter of the base: 59.95 mm
Assignment dirt bike engine :
TOKAWA 140-1P56FMJ and 149-1P56FMJ-5
DUCAR 140-DJ156FMI
YX 140-1P56FMJ and 149-1P56FMJ-5
YCF 140-1P56FMJ and 150-1P56FMJ-5
UPOWER 140-1P56FMJ and 149-1P56FMJ-5
ZONGSHEN 140-1P56YMJ