Replacement Powerlink for SRAM 9 speed or 8-speed SRAM chains allows easy installation and removal of your chain. Every chain is only as strong as its weakest link; traditionally, the connecting link. In contrast, the PowerLink connection is just as strong and durable as every other link in the chain. It can be opened and closed as many times as you want without using any tools. In other words, PowerLink means no weak links. Choose from silver 8-speed or gold 9-speed.