If the puncture is near the center of the tire, I always just plug it and ride. If I somehow pickup a puncture in the sidewall, then it's time for a new tire. I check the pressure in both tires before every ride. If I replaced a tire everytime I got a puncture, I'd be broke and couldn't afford to pay the deductible for that hospital visit.
Just picked up a 2" screw in my back tire the other day. Almost dead center of the tread. Plug, air up, and ride.
Lot of home construction in my area and a lot of careless construction workers with screws/nails/fasteners rolling out of the beds of their work trucks.
Last edited by mowcowbell; 08-25-2015 at 12:59 PM.