The KMC X-Series has been designed with the specific characteristics of the Shimano, SRAM, and Campagnolo systems in mind and will meet the most demanding requirements. Elaborately designed and manufactured, the X-Bridge technology, thanks to precisely chamfered plates, allows a smooth propulsion and perfect gear changes in all driving situations. - Size: 1/2"x11/128" - Length: 116 Links - Weight: 273 grams

KMC X12 chains feature a double X bridge shape for fast and smooth shifting. - Compatible with SRAM 12-speed systems - Double X bridge shape with inner and outer plate chamfering for smooth and fast shifting - Mushroom riveted pins for the highest pin power and allows shifting under heavy loads - 1/2 x 11/128 - 126 Links

11 speed eBike chain to stand up to the high torque of a motor. - Built strong for your eBike - Compatible with Shimano, SRAM & Campagnolo 11 Speed Systems - Mushroomed Pin Riveted - 1/2" x 11/128"