Ride quality at 39psi for Urban driving with 19" wheels

[CAM#3]

Has anyone else tried lower than mfr recommended tire pressure. In SF the road surface quality is poor -- not potholes but rough cracked pavement. IMHO 39 psi feels much smoother and "air-suspension" like.

Does anyone have opinion about the wisdom of doing it -- any big risk of lowering pressure to 39 psi cold with Tesla 19" wheels ?

 

[03DSG]

Has anyone else tried lower than mfr recommended tire pressure. In SF the road surface quality is poor -- not potholes but rough cracked pavement. IMHO 39 psi feels much smoother and "air-suspension" like.

Does anyone have opinion about the wisdom of doing it -- any big risk of lowering pressure to 39 psi cold with Tesla 19" wheels ?

Your fine at 39 psi. Any lower and you may get nagged by the TPMS. Even Musk agrees. His earlier tweet on May 30’th before the reduction to 42 psi for all Model 3 tires read:

Braking & UI upgrades apply to all Model 3s. Improved windshield for aero noise & suspension for ride comfort are major ops. Unless you’re really bothered by them, don’t replace. Best way to improve ride is drop tire pressure to ~39 psi. 45 psi is best range, but lower comfort.

 

[CAM#3]

Thanks...