The Earth is not flat, and neither are many cycling trails. One of the major appeals of a modern mountain or racing bike is its ability to shift gears based on the terrain. Riders can choose a higher ...

Exactly how this works varies from manufacturer-to-manufacturer, but Pinion — the undoubted leader in the bicycle gearbox market — uses a system of movable, interlocking spur gears to provide six, ...

Today's bike parts are almost universally better than bike parts of 20, 30 years ago, but for each bit they function better, they look worse. Most bike riders live with it. Some work out little hacks ...

While bicycle gearboxes date back to at least the 1920s, they’re relatively unseen in bike racing. One exception is Honda’s race-winning mid-drive gearboxes, and [Alee Denham] gives us a look at what ...