For young Bitaté Uru Eu Wau Wau, the distant chattering of a buzzsaw sends an ominous signal. It’s the sound of his people’s land in the Brazilian rainforest being chewed up by illegal invaders.

We see new e-bike launches practically every week here at Electrek, but we rarely see something quite so… futuristic-looking as the upcoming WAU model currently being teased. The UK-based ...