Q: I just bought a pristine 2017 Mercedes-Benz GLA250, only 60,000 miles, with brand new run-flat tires.

Love the car! Hate -- I mean hate -- the ride! My teeth jar going over bumps! These tires are just terrible!

My mechanic took some air out of the tires but told me if I want a more smooth, regular ride, I need to buy “regular tires.” I only drive about 12 miles round trip to play pickleball and do some shopping and I have AAA, so I’m not concerned about a flat tire.

Thinking about pulling the $1,000 trigger on some new Michelins. Your opinion is so much appreciated.

B.J., Orefield, Pennsylvania A: See the next question.

Q: What is your opinion on runflat tires? I understand their value and actually had one save me once when I went over a pothole and got a flat. I was able to drive the 35 miles home on the run-flat.

However, I think they ride much rougher and are more noisy than traditional ties. I also think they are actually more prone to getting flats.

I ran over a pothole a second time and the entire sidewall came apart, which required a tow. Never once had this happened with potholes on traditional tires.

A.W., West Simsbury, Connecticut A: My opinion matters less than yours, but for the record, I prefer traditional tires for both handling and riding comfort. You’ve got to base your opinion by weighing safety and security against comfort and handling and cost.

Q: The tire pressure indicator on my instrument panel, I assume, is electronically transmitted. Where are the sensors located in the wheels? If I need new tires, do the sensors also have to be replaced ? M.M., Des Plaines, Illinois A: There are two kinds of tire pressure sensing systems: direct and indirect. The direct system is the most common and has sensors mounted in the rims and is part of the valve stem through which air is injected. The second, indirect system relies on the ABS system’s wheel speed sensors. On the indirect system, if a tire loses air, it rotates faster than the other tires triggering the warning light. If they are working, the sensors do not require replacement.