yes, I know, and technology is good most times, but some things I just don't trust to it, I agree, getting down on one knee to check with a tire pressure gauge is a PITA,, I am nearly 60 yrs old, and have bad knees,,, but still have no desire to have TPMS on a Motorcycle.... not really dissing those that do. And if these damage the rubber stem,, (I presume they mount off the stem inside?) if they are damaging the stems, then it sounds like it's the manufacturers fault, they should be responsible... or give the metal stems with the kit,,,,, if they don't...I am not totally against new tech,, ABS on my 2010 SG was awesome,, many griped about it on here, "I can stop faster on my own" BULL CRAP! First time I really needed it turned out to be a blessing, and I KNOW no one could have stopped under those circumstances, wife and I on my SG,, light rain, (worse kind IMHO) someone pulled out in front,, I stood on both brakes hard, stopped about 5' from his door, he froze,, stopped after he saw me and just stared,, then sped off,,, I WAS PISSED! But we stopped straight and true,, it would have laid down without them,, and we'd have hit him, I know....so I am NOT against new tech,,,