Please define: Retail axles and wheels only

I cannot find the actual definition of Retail axles and wheels only.
I think I know what it means... but... Can someone point me in the right direction? The glossary did not list it that I could find. I did find this snippet: "The "retail wheels and axles" guideline means you need to use axles and wheels that come from toy cars. You can use wheels from another casting, and even axles from another casting, but you can't use some other object to make your axle - like a hat pin, or paperclip, or whatever. What you use has to come from a toy car. (You can still use axle tubes if you need, however, the axle you're shoving into the tube needs to be from a toy car)."
But really, is there a rules document that explains these requirements?
Thanks!
FredD
F'D Racing
Discussion
Retail is a general term.
retail
1 of 4verb
re·?tail ?r?-?t?l especially for sense 2 also ri-?t?l
retailed; retailing; retails
Synonyms of retail
transitive verb
1
: to sell in small quantities directly to the ultimate consumer
2
: TELL, RETELL
intransitive verb
: to sell at retail
retailer noun
retail
2 of 4noun
re·?tail ?r?-?t?l
: the sale of commodities or goods in small quantities to ultimate consumersalso : the industry of such sell
I'd say axles you buy from Ali or in kits are totally valid...that's retail. It's purchased. Not retail is something you make on your own, it's custom. You could probably swap "retail" with "custom" if that makes it better.
But also, yeah, like Numbskull said, don't worry too much about it :) No one is going to know unless they crack it open and look, which no one wants to do. Annnddd...they'd have to be suspicious first anyway. Don't sweat it.
What you found is about as official as it gets.
"Retail axles" means axles that came from a car you purchased.
A non-retail axle would be something you create or make from other items, like the example you found - hat pins, piano wire, whatever...something that didn't from a purchased car.
I believe the majority of races opt for this type of restriction on axles so as long as you're using axles from other cars, you'll be fine. If such a thing is not specified, I would contact the host and get their thoughts on it. They might not care but using retail axles gives everyone some common ground.