Connex circuit chain sb-packed, 1/2 x 11/128, 10-speed with a width of 5.9 mm, these chains are compatible with all standard 10-speed systems. high-quality materials combined with extremely chamfered shaped outer plates promise long life and outstanding shifting performance. in models 10s1 and 10sx the inner member made ??of stainless steel provides even better protection against wear and thus protects the expensive sprockets. with the included connex link mount and dismount your bike chain in no time - without any tools! pin length: 5.9 mm 10sb, brass, ultra-black-coating of the plates ensures optimum corrosion protection, extremely durable, 114 links, weight: 275 g