SRAM PC-991 9-Speed Hollow Pin Chain
This item is currently not available.
Details
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.
There are two main chain sizes, 1/2 x 3/32 and 1/2 x 1/8. The 1/2 refers to the distance from pin to pin. The 3/32 and 1/8 refer to the width of the space between the inside sideplates. 1/2 x 3/32 chains are referred to as "derailleur chains" because they're narrow chains for use with bicycles with derailleur gearing. Note: When buying this type of chain be sure to get the one made for the number of cogs on your rear wheel, such as 8-, 9- or 10-speed. The other size chains, 1/2 x 1/8 are referred to as "coaster-brake" or "BMX chains" because they're wider, and for use with coaster-brake, BMX and certain 3-speed drivetrains. If you have any questions about chain compatibility, please contact us.