What size are standard front and rear disks?

[nick172sport]

As title really, what size are front and rear disks on a 172? F: 280mm and R: 238mm?

If they are smaller than that, would these sizes fit with stock calipers and stock 172 wheels?

Thanks!

 

[Austin-182]

Front are 260 i think mate

 

[James23]

Front are 280.