On Wed, 2 May 2018 18:47:38 -0700 (PDT), Lawrence Brennan
wrote:
Where is a good google group to post the selling of commuter/ touring
bike equip? Is this it? Thanks

No. This is a newsgroup (not actually a Google Group, even though you
can see it via Google Groups. Newsgroups are operated under the NNTP
protocol and predated Google by a couple of decades. rec.bicycles.tech
is just sort of grandfathered into Google Groups, as are many other
newsgroups, but Google doesn't operate them) for discussion of technical
matters about bikes.

Craigslist is probably a better choice if you live in a metropolitan
area, perhaps less useful if you live in a rural area.