Thick street tires around 2.5' wide for passive suspension like the Schwalbe Moto X (why are most street tires designed to be lite for racing?), No front fork because they are just so the industry gets service money later, 120nM or more mid-drive (so can sustain 20mph up a reasonable hill without huge rider effort), belt drive or really good DD hub motor, comfortable upright riding position with comfortable saddle (with a good motor being in a aero position is less important and urban riding you want to have best visibility and not be tucked down). Stromer has beatiful nice bikes but way too expensive.