GP Motion GmbH produces a retrofit-kit , the add-e, the smallest and lightest add-on kit for bicycles who turns almost every standard bicycle into an e-bike within shortest time.
The kit consist of three main components: the battery in drinking bottle design, weighs only 2,1 kg, the drive unit – a friction roll which powers the rear wheel directly. In the off mode, it decouples completely from the rear wheel, and it is possible to ride the bike as used to and the mounting kit which allows to mount the kit on almost every bicycle.
The whole kit weighs only 2,1 kg on the bike itself and due to its design it is almost invisible on the bike.
Since 2015 add-e is on the market and in 2019 GP Motion GmbH launched the new, better version of add-e – the add-e NEXT with even better performance.
Further information can be found on Youtube.