DIY e-bikes are often easy to spot. If they’re not built out of something insane like an old washing machine motor, the more subtle kits that are ... an open-source electric motor controller ...

Hey, it may not be the coolest looking thing in the world, but the newfangled Rubbee electric-bike kit will get you across town without pedaling. Or at least, some towns. UK-based Rubbee is ...

[Tom Stanton] wanted to see if supercaps have any practical use on e-bikes, and built a DIY electric motor in the process. One of the problems with supercaps is the rapid voltage drop during ...