If you crank the valve nut on with pliers then yeah your going to need a pair to get it back off. Suppose to only put them on finger tight but I've been guilty of busting out pliers myself when one ticks me off and won't quit leaking. I carry a leatherman with me on my mountain bikes but I don't bother on my road bike. My new valves that are on my roadie have a larger nut with a big flat spots on the sides that makes doing and undoing them by hand much easier so hopefully not an issue.
oh and a trick that helps. When you get the tire off the rim push down on the rubber part of the valve stem in the rim to take pressure off the nut while turning it. If you are having trouble getting the nut by hand that can make all the difference.
Last edited by Canker; 12-20-22 at 09:18 AM.