Usage:Home Appliance,Electric Bicycle Certification:UL,CE,ROHS,CCC Type:planetary gear motor Torque:0.63~45N.m Construction:Permanent Magnet Commutation:Brushless Protect Feature:Drip-proof Speed(RPM):7.6~822r min Continuous Current(A):3.5A Output Power:60W 90W Voltage(V):24V Diameter:62mm Gear:1st stage helical Ratio:3.65~393 Color:Grey