Stiffer for more precise shifting, lighter and tidier: the Faserwerk UDH Steigbügel does it all.
It eliminates the B-Link on Shimano and Campagnolo rear derailleurs.
If your frame has UDH but you ride a Shimano or Campagnolo rear derailleur with B-Link (the small part between the derailleur hanger and the rear derailleur), the Steigbügel is a nice upgrade.
The B-Link is eliminated, making the connection to the frame stiffer, which ensures more precise and faster shifting. You also save 8 g in weight and get a cleaner look. 
Compatible with all Shimano and Campagnolo rear derailleurs for direct mount.
Current Shimano MTB rear derailleurs are not for direct mount and therefore not compatible.