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