Compatible with all 11-speed derailleur systems Contains MissingLink Excellent shifting thanks to the double X bridge Item no.: BX11GG114 Size: 1/2 X 11/128 Color: Gray Pin length: 5.65 mm Weight per 110 cells: 260 g Length: 114 links X-Series Your bike deserves it. The KMC X series is designed with the specific characteristics of Shimano, SRAM, and Campagnolo systems in mind, meeting the most demanding requirements. Carefully designed and manufactured, X-Bridge technology, thanks to precisely chamfered plates, enables smooth drivetrains and perfect gear shifting in every riding situation. The X series is trusted by many top athletes in professional cycling.