SRAM’s PC-991 Hollow Pin Chain delivers light weight, strength and smoothness to your drivetrain. It's SRAM’s premier 9-speed chain and it features inner and outer sideplates that offer faster and more accurate shifting in all conditions, along with hollow pins, which keep this chain as light as possible. And, with its great PowerLink, you don’t even need tools to install it.
The SRAM PC-991 Hollowpin chain is the best chain I've ever owned. I switched from Shimano Dura-Ace and Ultegra chains because you have to replace the chain pin with a new one everytime you remove the chain. By the way, for all those thinking it's best to just leave the chain on the bike while you clean it - that's not the best way. The Sram powerlink allows easy removal of the chain for cleaning.(which the best thing to do) It can be done with a snap and requires no tools! You get a cleaner chain, cassette, and chainrings with NO scratches on the frame because the chain got in the way while cleaning your gears. It has never rusted and it always allows smooth, quick shifts.
Bottom LineYes, I would recommend this to a friend