Shimano’s Shadow Plus rear derailleurs have improved chain retention and shift accuracy by reducing the movement of the derailleur’s cage while riding. The clutch mechanism inside a Shimano Shadow ...

Rear derailleurs are problematic, particularly on mountain bikes. They get bent, they get gunked up, and they're exposed to the elements. While sealed hub transmissions lack these problems, not all of ...

If your gears aren’t shifting properly and you can’t get them to index, a bent derailleur hanger can often be the culprit. The derailleur hanger keeps the rear derailleur aligned perfectly with the ...

Some readers will likely note Shimano already has clutch mountain bike derailleurs that can be paired with electronic shifting for 1x systems. With the new Ultegra RX derailleur, Shimano expands ...