Anthony Brewer 5 This chain has a quick-release link, not a missing link, as advertised. A tool for removing old ones is highly recommended. Chain is quite light due to weight-saving cutouts, which will soon fill with crud, but strong enough to handle clunky changes on tough climbs. With Ultegra Di2 it works well with the 52-36 + 11-34 all-you-need-for-anywhere combo and for the max length 116 links is two extra.