The series are the lightest chains in this range. In addition, the weight reduction brings many advantages such as faster shifting, more comfortable pedaling and even a significant reduction in chain wear. The chain wear was impressive during the tests, especially due to the open structure of the links, which allows impurities to be easily extracted. The hollow pin of the links is riveted with our brand new FLAT STEP? process, which seals the outer link with an impressive 350 kg of holding power, making it the strongest connection in the chain industry. Test riders loved this chain from the start. When riding with the X-SL chain, they found it to be the real racing chain.Quick release KMCDimensions: 1/2 "x11x128"114 linksWeight: 243gUsage: PerformanceMulti DirectionalCompatible with Shimano, Sram and Campagnolo 10v drivetrains.Number of Links 114 Speed 10