Kits with a clock on the LCD instead of total time, motor AND ambient temperature, total Wh used instead of current Watts used. Battery voltage on the main screen instead of stupid bars that mean nothing, a single trip reset button. Plugs for brakes and throttle in the LCD and single thin cable through the frame to the controller.
A 10C, 20 Amp output BMS 18650 battery - no sag please - with controller in the battery and pre-wired for lights.
Easy to take apart hub motor for customer maintenance - no special tools or well placed hammer whacks...
I could go on.
flecc we don't ride the same roads (and maybe not the same distances these days). The RST single shock front suspension with 40 mm travel is needed here and a NCX suspension seat post are on my wish list.
Hydraulic rim brakes = many saved grams in unsprung weight and are just as good as disk on the road.