Sidewalls are critical for NVH at higher speeds, as well as fuel economy. But a demo of a tire on a car going 55 mph doesn't make sense, so they are able to rem

Sidewalls are critical for NVH at higher speeds, as well as fuel economy. But a demo of a tire on a car going 55 mph doesn't make sense, so they are able to remove the sidewalls for these stationary photoshoots and low speed rolling tests.