I doubt it Dominic, the Model 30 City has a higher wattage motor, so the extra push on the red setting is opening up those extra watts.
If you are brave you could try over volting by adding another 12v but it might simply fry the controller, or the in-built protection may shut the controller down.
Thank you for your suggestion – but I think that may not be a good idea… at least the bike is usable at the moment – would not want to risk blowing the motor entirely…
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