I used with 225/70R18 tires. I then drop 35 kilos. up to 15. This tool works, but I noticed a few things. The sensor is not accurate. Pretty close, but not perfect. When the meter reads 15 lbs. After venting, the other 2 gauges will read either 16 or 17. For my application, sand driving, this is close enough, but the gauge needs to be accurate.2. Removing root values is not reliable and not always successful. I ran into this a few times so I'm very careful to align things and take my time to remove the value stems, but sometimes it just doesn't work and you have to go back and try again. I had no trouble reinstalling the valve stems. Overall the tool does the job I bought it for, but I have no confidence in the tool's durability. I'm also concerned that the sensor could become less accurate over the long term, rendering the tool unusable. Bonus points for including a valve core package.