Connex chains pass all DIN EN and ISO9000 tests. We’ve used them for years as alternatives to SRAM and Shimano with great success; they run quietly and shift quickly and precisely. Chain reliability depends on accurate joining, and thanks to its foolproof Connex link this is a ﬁve-second, tool-free job.
We’ve worn a few Connex chains out, but never broken one in thousands of miles of off-road riding. The brass coating weatherproofs it against corrosion (though you’ll still have to oil it). This 116-link nine-speed chain weighs 294g including the connector link.