Can you use the 9 speed KMC “quicklink” on a 9 speed Shimano chain (HG73)
I don't see why not. I've used Sram Powerlinks and Wipperman Connex links (which I prefer) and they work just fine.
I had one on an Ultegra chain and it worked fine.
Hiking is just walking where its okay to pee... Sometimes old people go hiking by accident. -Demetri Martin-