With the release of Shimanos Shadow Plus derailleur this past season, Sram has been hard at work to create some significant updates to current derailleur offerings.
Shimano's Shadow Plus derailleur features a roller clutch mechanism that greatly decreases unwanted chain movement by allowing the derailleur to only move in the direction of the shift. This system has shown great potential and it is obvious why Sram would adopt a similar technology for their derailleur updates.
A clutch system improves a derailleurs functioning over rough terrain by decreasing unwanted derailleur movement. These decreases chainslap and potential for chainsuck due to poor chain alignment during a shift. Overall, this system has the potential to improve the off road riding experience greatly.
This is the first sign of clutch usage we have seen from Sram, but are sure we will see more soon. The technology is not new by any means and has been used in vehicles and RC cars for many years now, but adapting it for bicycle derailleurs is finally catching on with Shimano's development of the mechanism.
Though we know very little about the system and its possible release date, we are sure to know more in the recent future, so stay tuned to Mountainflyer.com