Sram powerlock connecting link 10 speed the sram powerlock connecting link 10 speed is the missing link you need for your chain key specifications include four pieces or two pairs per pack pick up this chain from probikekit for the best prices and value th key features sram powerlock chain link for sram 10 speed chains 4 pieces 2 pairs per pack essential for joining or repairing sram 10 speed chains a new powerlock must be used each time the chain is split