Can anyone explain this tire assessment sheet?

Hey guys

We stopped by Speedco to have a tire changed and wanted to ask, what does the F, C, N, stand for in the boxes for each tire?

Thanks

View attachment SpeedCoTiresInfo (1).pdf

 

my guess, C= cap,F=flothru cap, N= no cap

 

I don't know the steers are marked C as well.

 

From looking at it, I was thinking the same thing. The C is circled on the steering tires which should definitely not be capped, so maybe some other meaning?

 

valve stem caps

 

I wasn't thinking valve stem caps. I will admit the words flothru were my sign, but I missed it. Wasn't the first one this week lol

 

well I did say it was a guess I could be wrong and I hate to admit how long I looked at that sheet until that guess made any sense to myself. now I'm going to fridge for 1st beer

 

I called them..

C = reg cap
N = no cap
F = flow thru cap