Well, getting to the valve stems to check pressure is a giant pain for sure. I had bought some of the Ride-On sensors, that flash a red led when the pressure drops below 4 lbs from when you screwed them on. Still had a problem seeing the things, before I'd go for a ride, especially the rear. Also, they would flash a yellow led when the battery was low. The first batch had non replicable batteries, but the newer versions do. However both of mine went dead, and I never saw a yellow led. The batteries have to be tiny, and I don't think the life is near as long as advertised. I bought a cheap small dial gauge, but the ****ed thing doesn't hold the reading, meaning you have to get on your hands and knees to try to see the thing. And reading glasses required. Yup, I'm an old fart (67 in Sept), and arthritis kickin my butt. Anybody have a link for a good gauge, that you can easily get on the Rocket stems, and holds the reading until you release it?