The KMC S1 is a single-speed chain suitable for use with any single-speed drivetrain: internally geared hubs, BMX, Fixie.
High pin power with reinforced durability Offers a quieter riding experience Anti-drop design Internal gear hub system compatible 1/2x1/8" 112 Links 9.3mm Wide Includes Reusable Master Link Formerly the Z410 Model
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