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SRAM'S Super Narrow 10-speed PowerChain features the PowerLock connecting link the only secure tool-less attachment device for a sub 6mm chain in today's market. The SRAM PC-1031 chains feature solid rivet pin construction. Lighter weight plus smooth, positive, precise shifting adds up to true performance. Compatibility extends to industry standard 10-speed systems.Closing Link: PowerLockWeight: 272g (114 links)Rivet Type: Chrome Hardened Pins