What could possibly distinguish one wheel from another? Surely they’re all just round things with a tyre on the outside? Funnily enough, mountain bike wheels are a bit more complicated than a round ...

Aluminum mountain bike wheels are utilitarian in nature. They are rarely designed to be flashy—they are designed to take abuse, remain reliable, and be easy to service. The new MTN30 AL wheels from ...

The Smart Wheel weighs 3 kg (6 lb), and its hub contains a lithium battery pack, a 250-watt motor, a Bluetooth module, and sensors for monitoring factors such as acceleration, torque and temperature.