I was going to suggest swapping out the controller for a KT one, but Ezee motors are a bit weird. I tried to replace an Ezee controller before. I tried a KT, which would only run it at the correct speed backwards. when I reversed the wires, it rotated like a turbine at 50 mph. Then I tried a KU63 that has auto configuration, which turned the motor perfectly, but backwards. Swapping the wires around didn't work because it always reconfigured itself to work backwards. That was 8 years ago. Maybe our understanding of how KT controllers work has improved a bit or the controllers have new features.And it's this that is starting to concern me.
1 My trusty Ezee motor is unmarked.
2 On the stand it registers a maximum speed of 19mph without a cutoff (though this is with an uncalibrated cycle computer as it only has a led display).
3 It has a full acting throttle (only for hill starts guvner).
The bike and kit were bought in 2014 prior to the January 2016 law change. However the presumption now seems to be that if it's a kit bike it's illegal, as in the oft repeated phrase, 'An illegally modified e-bike'.
The wifes bike is a 2014 Big Bear. Whilst very firmly cutting off at 15.5mph it does have a full acting throttle and a large front hub.
The big bear should be fine with a KT.
Probably not going to be bothered around here but we do take them on holiday to various towns and cities.
The advantage of the KT, apart from getting a better ride and more controllable power is the way you can set up the throttle to be legal with 4 mph no pedalling and 15.5 mph when pedalling.
There was a letter from some government minister or something, which indicated the grandfather rights for throttles. if you could get a copy of it, you could stick it inside your handlebar or somewhere like that for emergency use.