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 generally used still stand out when compared to a ...

[Andrey Nechypurenko] has posted the second part of his robotics ground vehicle design guide. In his first post [Andrey] detailed the mechanical design decisions he faced. [Andrey] now begins covering ...

For 11 years now, German company Pinion's sealed mid-mount gearbox has offered a tougher alternative to derailleurs. It's now been combined with a motor, resulting in a two-in-one ebike module called ...