For AUE consumption,
Jack Campin noted that:

The more unlikely term is "chainwheel". I'd say that's pretty
rare in BrE, foreign-sounding even. It's usually "chainring"
for the cogs at the front
"chainwheel" is used by the British company Brompton Bicycle Ltd.
It is used to refer to the whole "wheel" to which the pedals are
attached. The "chainring" is the replaceable outer part of the
assembly.

I've only ever known "chainwheel" as the word for that, too.
All standard books on bicycles use it (like Richard's Bicycle
Book, written by an American but first published in the UK,
where he lived).

The one I have is
URL:https://www.amazon.com/Anybodys-Bike-Book-Original-Bicycle/dp/0898150035
but I my copy is in storage, so I'm not quoting from it yet.

/dps "the spoke tightening discussion is amusing"

--
"I am not given to exaggeration, and when I say a thing I mean it"
_Roughing It_, Mark Twain