Originally posted by lil_1_2002
i'm totally lost by what you said dave heheh. i'm currently running 215/45/17, what did you say about braeking? i didnt understand a word heheh.
No worries...
Tramlining refers to a car's tendency to follow the contours/ cracks/ variations of the road surface, which is felt through the steering wheel as a tug left or right. This problem is particularly severe on cars with tires that are actually
too wide...because, especially under braking, the shape of contact patch in front is wider than it is long.
As shown in this [shitty] diagram, the grey oval shows an excessively wide contact patch.
The red arrows illustrate the forces placed upon the tire by elevated sections of road. As the tire contact patch gets wider, without getting sufficiently long, the leverage these forces have upon the tire is enough to affect the steering of the car.
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The rest of my earlier post was me debating internally whether or not a 225/40R17 tire would even fit or not. The answer is: I don't think so....