Description Item Brand FlipskyItem Number 6374 Battle hardenedItem Name BLDC Belt MotorMaterial MetalColor BlackMotor Size Motor diameter is 63mm total length is 108mm±0 5 shaft length is 34mm shaft diameter is 8mm or 10mmNet Weight About 980gPackaging Box Weight Approx 1029gCompatible Electric SkateboardSpecification KV 190KVMax Power 3500WattsMax Current 85 AmpsMax Volts 12S Max Torque 8NmMotor Resistance 0 05OhmRecommend ESC 3 12S 50A FSESC4 12 50A or FSESC 6 6 60A The number of pole 14Reference Information The screws used for the motor are M4 metric bolts Using our motor mounts we recommend using M4 Socket Cap bolts Screws to mount the motor are not included with the motor If you choose round shaft motor shipping includes the key for the keywayIf you choose the shipping comes with pulley will come with 8mm steel material pulley Package Included 1X 6374 BLDC Belt Motor