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 ...

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 ...

1. Understand It: Your rear derailleur moves your chain across cogs and maintains proper tension on the chain with every gear change. How? The chain runs around two jockey pulleys on the rear ...

[Nabil] sent in an awesome electronic bicycle derailleur. Now, instead of pulling a steel cable with a shifting mechanism, [Nabil] can change gears electronically. As a bonus, the derailleur can be ...

Are bicycle derailleurs drifting into history, replaced by gearbox drivetrains? Even accounting for the latest wireless drivetrains and ever-lighter wheels and componentry, riders of every discipline ...

From the birth of cyclotourisme to moon landings and the rise of 1990s mountain biking these mechanical marvels have played a small but crucial role If your bike has gears, the chances are it also has ...

Unlike many new standards on the market, SRAM's new UDH universal derailleur hanger standard for should do away with a lot of confusion by essentially — if SRAM's strategy goes to plan — reducing the ...