Sram: Flattop technology is so much more than a distinctive look. It allows our 12-speed chain to be lighter, stronger and more durable than anything that came before. The Apex chain uses the same construction as the Rival and Force chains, with a polished grey finish.FEATURES12-speedFlattop technology allows for a narrower chain with quieter operation and increased strength and durabilityIncludes Flattop PowerLockPolished steel with grey finish SPECIFICATIONSCompat - Speed (CN): 12s-RoadChain length (links): 120 links, 114 linksColor - Outer link: GreyColor - Inner link: GreyChain connector: PowerLock D1Inner link finish: PolishedOuter link finish: PolishedPin variant: Solid PinPin treatment: Chrome Hardened