. . . powered by the trailer, it carries to deliver its cargo,
Technically speaking, the electric trailers are weight-neutral.
. . . The weight of the cargo, which can go as far up as
. . . 440 lb (200 kilos), is unfelt by the bicyclist,
. . . the rider, simply moves in the right direction,
. . . with the trailer pushing behind.
The only thing they need now,
. . . is to place a solar panel on top of the wagon:
. . . . . . Economy,
. . . . . . Simplicity,
. . . . . . Flexibility.
11-27-2017 Source: United Parcel Service: #Electric Bicycle