Realised i had a flat on the rear when i left the work carpark sideways n i was only doin 15mph. Just put on a new tyre tho so really dont want to have to replace it. Iv located the puncture, its a screw in my tyre right upto the head. Am i best having an innertube fitted or use tyre weld or similar product or get it plugged? Also, anyone got a rough idea of the price of gettin a hole plugged?