1)Water cooling , 4-valve ,20KW,strongest power 2) ... L)13 IV. Basic configure MODELSimple stateUNITquantityCOLORNOTEG2 250CC 4-valve water cooling engine,KT30 carburetor,Racing muffler,tank protetor, ... , maple leaf camouflage, desert camouflage and other water veins lacquerCOMPANY PROFILEWe have more than 18 years motorcycle ... a professional motorcycle manufacturer. FAST RACING BIKE 250cc water cooling