If my seatpost is a 27.2mm and its a on steel kona frame, what size will the seatclamp be?

29.8 or 31.8mm

thank you

I'd guess 29.8, but if you can measure it with a pair of calipers to be on the safe side.

I can measure it with an ikea paper tape measure. Should be accurate enough. It's just that I'm at work now and the bike is at home.
cheers

Would it not be 28.6mm?

I'd expect it to be a 29.8mm on a Steel frame.

27.2 post Alloy frames tend to be 31.8mm.

inbreds run a 27.2 post and a 29.8 clamp

but I seem to remember having a steel Kona which ran a 28.6 clamp so it might not be so clear cut. Konas used to run 27.0 posts though…