Especially fun are the fact that some of them are now asymmetric with hollow pins, though that one is a bit more expensive. Incremental improvements. A bike tod

Especially fun are the fact that some of them are now asymmetric with hollow pins, though that one is a bit more expensive. Incremental improvements. A bike today looks fairly similar to a bike from 50-60 years ago, but every last bit is very different. https://bikecloset.com/product/shimano-cn-hg901-11-dura-ace-xtr-chain-quick-link-super-buy/?gclid=EAIaIQobChMI-ZrWw8G44wIVTL7ACh13MgpEEAQYASABEgJ4jPD_BwE https://bikecloset.com/product/shimano-cn-hg901-11-dura-ace-...