The motor should be just fine, but the controller is another issue. If doesn't specify use with 52 v you will be taking chances. One thing to remember is as you increase the voltage you reduce the number of Amps necessary to achieve a given wattage.Hi everybody I'm a new booty to the ebiking world. But I have a question? I have 48v 1000w rear hub. And a 52v battery. Now should I get a higher voltage controller the same as battery, or will it be just fine?