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Ok - so having read through the grip i understand that if you increase the width you decrease the pressure per square inch of the tyres. Thats fine.
So what your saying Zak, is that my 205 eagle F1's give the same level of grip as if i had 255 eagle F1's. But my 205 eagle F1's will wear out faster than if i had 255's on there. So what i need to find, is the width of tyre that gives the best value with regards to wearing out.
So in the case of eagle F1's, 205x16 ones are £72 and 215x16 ones are £115 so putting the 215's on would mean they give the same grip but wear out a little bit slower, BUT the initial asking price is so inflated due to them being a uncommon size, that the 205's would be better value overall as even tho they wear down a bit faster theyre so much cheaper.
Looking at 225x17's theyre actually quite cheap at £91 as they are a common size, so if i had 17" wheels and 225x17's it would work out better value to get them compared to getting 215'16's as the 225's are wider so will wear out slower, but they are also cheaper to buy in the first place.
But now we need to guess the wear rates between the 205x16 and 225x17. The 225's are quite a bit wider, but are quite a bit more expensive, but given that 17's look better, and have lower profile side walls, they may actually give better handling due to less side wall movement? So the 225x17's may actually be the ones to go for in the long term?
Now the other thing i was thinking about is in the wet. Sureley given the same model of tyre, the wider it is, the wider the grooves and channels are, so the more water will be able to be displaced, so the better the grip in the wet? So even though 205's give the same amount of friction as 225's, in the wet, the 225's should be able to work more efficiently thus giving more grip? Is that correct?
So with 225x17's not only would i get slightly better handling due to lower profile, i would get more grip in the wet, an they would look better too, and theyre not too costly, and they should last longer than my current 205x16's
Am i on the right line here or am i way off the apex?
And can i just ask one question. If zak's theory is right, and all the above holds true, how come moving from wet tyres, to slicks increases grip in the dry? Sureley the slight extra surface area that loosing the groves gives, is offset by a slight decrease in the pressure per square inch of rubber? Or are wets a different compound to dry?
Anyone?
Butuz
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Originally Posted by Advice Trinity by Knoxville
