This controller is only fit for Dualtron II, 60V. Pls don't order it for other models. The controller has been upgraded 2 times: 1. First upgrade is happen in March, 2017. This upgrade can be applied to the scooter  produced before March 2017 to have better performance. 2. Second upgrade is happen in August, 2017. Programe of controller is changed since August 1st, 2017. And then in the end of August, Minimotors compact two controller to be one block unit to make it more simple, c
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