The SRAM PC-991 is nearly identical in design to the PC-991 Hollowpin. The hollow pins have been replaced with chrome-hardened solid pins, which is reflected in the slightly heavier weight and the lower price. Otherwise the link design is the same. This chain also includes the gold-colored PowerLink for ease of installation and removal of the chain.
• 9-speed compatible
• Closing Link: PowerLink™
• Outer Plate: Nickel Plate
• Inner Plate: Nickel Plate
• Pin Treatment: Chrome Hardened
Brand: SRAM