Quality 1-speed chain.The Z1 WIDE chain is a 1-speed model for single-speed bikes. Compatible with Sram and ShimanoChamfered inner plates reduce noise. DETAILS116 links1/2" x 1/8" PURCHASING OPTIONSColor: brown INCLUDESSpare chain linkInstruction manual COMPATIBILITYShimano compatible with ALFINE/ NEXUSSram compatible with AUTOMATIX