Hello, dear community! As one or the other of you already knows, I recently switched from “Continental Contact Premium 2” to “Vredestein Sportrac 3”. In terms of dimensions, this resulted in a change from 185/55R16 to 195/55R16. My new flaps are therefore each one cm higher and wider. As a first positive effect, I could see that these tyres on the road, and here above all in curves, stick to the ground like anything else. However, it also seems to me as if they were my acceleration values lower since I put the new tires on it. At first I thought that I only imagined this, but then made myself more clever on the Internet. As far as I understood this, wider tires mean more circulation on the road. On the one hand, this means that the contact area to the road is wider with a resulting stronger grip on the ground, on the other hand, the resistance is greater due to the larger area. Corrects me if I am wrong Iege. As far as theory is concerned. However, can this effect be determined already with just one cm difference in width? The differences (more ground adhesion, lower acceleration values) to mine tires are minimal, yet noticeable. Would that be quite a bad thing if a centimeter in height and width already made such a big difference. The conversion took place as mentioned above from 185/55R16 to 195/55R16.