My e-bike (Onyx RCR, basically a motorcycle) hasn’t needed anything of the sort. So it might be either a specific manufacturer thing and/or a cargo bike thing. I can imagine them using regular bike parts even though it’s taking way more weight/stress.
For pedal bikes, they can be that reliable if you want to pay for it:
hub gearbox (a rohloff gets 100,000km minimum)
decent belt drive (30,000km)
solid tires get 5,000km. Not as good as car tires but there’s a reason; any additional durability will add noticeable drag/weight. Super thick e-bike tires could probably get 70,000km like a car
My e-bike (Onyx RCR, basically a motorcycle) hasn’t needed anything of the sort. So it might be either a specific manufacturer thing and/or a cargo bike thing. I can imagine them using regular bike parts even though it’s taking way more weight/stress.
For pedal bikes, they can be that reliable if you want to pay for it: