The bike is a Raleigh Kelloggs Pro Tour road bike approx 1987. I'm not sure if these are the original wheels or not as I bought it used, but they have the following engraved in; Weinmann 116 Alloy, ETRTO 622x16 700c if that helps.
I don't race it competitively, just use it to get from A-B.
I'm about 11 stone.
I'll have to do some measurements and see if there is any info on the tires tomorrow.
I'm not sure what you mean by PSI? Do you mean the pressure that the wheel is pumped up? I just put the pump on and pump till the tyre is inflated.
It looks like I might have picked a hard thing to start off with, but that's just the most urgent thing that needs doing.