This is an all-in-one attachment, which only simplifies things. As you can see, it’s meant to be mounted at the back of your bike, behind the seat. The LIVALL PikaBoost 2 integrates a motor ...

[Beyond the Tint] is building this mostly as a proof-of-concept, starting with a 1,000W hub motor from an e-bike that’s been removed from its wheel. A 3D-printed waterwheel attachment is ...