I have done a fair bit of googling but haven't found what I want yet. Does anyone know of a low profile twist throttle which works with a 36 V Smart Pie? By low profile I mean the max diameter should be as small as possible. I can live without the LED indicators. Currently with the standard GM throttle I can only put my brake lever, shifter and throttle in one position which is not ideal. I have the Shimano rapid fire two lever type shifter and don't want to change this. Also definitely don't want a thumb throttle or half twist throttle.
Related question: What's inside the throttle anyway (I think I saw something that said a Hall sensor) and is there a circuit diagram somewhere?