Shimano Ultegra 6800 11 Speed Short Cage Rear Derailleur

Shimano Ultegra 6800 11 Speed Short Cage Rear Derailleur. Prepare for 11 speed performance. The Shimano Ultegra 6800 11 speed rear derailleur has been redesigned from the ground up to give you improved shifting performance, lighter weight and an all new spring mechanism. The design is more compact and lightweight than the previous 6700 version, and the all new spring mechanism works to ensure that shifts are equally executed and flawless across the entire cassette range.