High-performance chain for SRAM flat-top drivetrainsDo you ride SRAM and are looking for a genuine alternative to the flat-top chain? Precisely engineered for modern 12-speed SRAM flat-top drivetrains, the new Connex 12SR delivers razor-sharp shifting and maximum durability without compromise. It also features the legendary Connex Link â tool-free, in elegant black, and ready to use