The Box One Prime 9 chain is protected by a dual coating process: nickel plating for corrosion resistance, topped with a Diamond-Like Carbon (DLC) layer that enhances hardness, wear resistance, and slickness. Featuring chamfered shifting edges, solid plates, and pins, it’s engineered for secure engagement with wide/narrow chainrings and built to endure the rigors of modern riding.
• Prime 9TM Technology
• Our Best Performing Chain
• Durable dual coating > increased hardness = higher load
capacity and longer service life
