Compatible with all 9-speed systems Includes MissingLink connector Perfect gear shifting thanks to the Double X-Bridge Size: 1/2 X 11/128 Color: Gray Pin length: 6.6 mm Weight per 110 cells: 287 g Length: 116 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.