I tested it on my 2011 Harley Ultra Limited. The valve stems are difficult to access on this bike due to the dual rotors up front and the saddlebag and rotor at the rear. The Motor Luxe tire pressure sensor was the perfect tool for the job. I compared his readings to two other sensors I had and they were all fine. Holding it in your hands, you immediately understand that this is a quality sensor. I was able to run the gauge through the rotors and the way they angled the chuck on the end of the gauge made it ideal for fitting snugly to the shank and taking accurate readings. I'm glad the gauge lasts until you press the exhaust valve. I found it difficult to put air in the tires as they were low. When I checked the pressure again, it was too high. I was able to release the pressure through the gauge precisely to get the exact pressure I needed. I found it a great feature and saves time. It took its place in my tool box, two thumbs up