[Nabil] sent in an awesome electronic bicycle derailleur. Now ... This allows [Nabil] to automatically trim his chain, completely eliminating chain rub.

Compatibility: Double-check that your chain works with your mountain bike’s cassette and derailleur. It’s time to replace your mountain bike chain when it sustains obvious damage. It’s also ...

"The GD8 represents a game-changing step forward in e-bike drivetrain technology, eliminating derailleur systems and prioritizing durability, performance, and long-term value." The pilot ...

It can also mean your derailleur is out of adjustment and not shifting properly. A worn chain can also cause noise. Bicycle chains wear out with use as the bushings and rollers in the chain become ...

and I experienced the typical chain slap one would expect with a non-clutch derailleur on gravel road dips and crossings on the bike path. On Saturday, Shimano’s mechanics swapped in the new RD-RX805 ...

The original Buffalo bicycle was extremely rugged ... but rather than add a complicated and hard-to-repair derailleur the freewheel adds a second chain instead, and the rider can shift between ...