Riese and Muller Single rear child seat Load/Packster MY2020 magnum_parts This is in contrast to

This is in contrast to 'cassette' type rear gear sets that slide onto a 'freehub body (containing a freewheel mechanism)' that is part of the rear hub

You cannot put a cassette rear gear system on a Magnum e-bike or onto an eZee Forza

The Cargo Tray can carry up to 30 kg (66 lb) of cargo and has passed ISO's safety and performance standard for bicycle luggage carriers

there are some distinct advantages to removing the battery:

they will not accept an e-bike battery with it

Riese and Muller Single rear child seat Load/Packster MY2020 magnum_parts This is in contrast toA child seat that goes in the rear of the front box of the Riese and Muller Packster. Usually there are two of them side by side. This product is for a single seat. These are easily removable from the box.