Derailleurs are the transmission of your bike. When you shift, they guide the chain to the correct gears. Whether you’re fixing a particular problem with your chain or simply giving the system a ...

Gears need occasional adjustment to keep them running quietly and shifting sweetly. Here’s how to sort your shifting quickly and easily every time When you purchase through links on our site, we may ...

All bikes with the exception of penny-farthings are geared between the crankset and the rear wheel. Most bikes will include a range of gears, so that you can choose one appropriate to where you’re ...