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<table border="0" cellpadding="6" cellspacing="0" width="100%"> <tbody><tr> <td class="alt2" style="border:1px inset"> Originally Posted by
eddiebx 
I understand what you are trying to say, but don't you think you're making a bit too much of a generalization here? Based on your blanket statement, the unsuspecting individual might think that anything taller/wider will perform worse in the rain, which is simply not always true. Tire size does not dictate how a tire will perform as much as the tread pattern will, yet you refuse to accept this and actually try to traverse someone else's suggestions about tread pattern.
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It wasn't a blanket statement it was a generalization. That means all else being equal..., in this case yes a wider taller tire will perform worse ON ROAD in rain, ice, snow than the exact same tread pattern in a slightly narrower, shorter tire (tires sizes given, vehicle given). I'm not trying to traverse someone else's suggestion (I don't even know what that means). I'm saying that going to a larger wider tire of the exact same, type and brand as the smaller size will give slightly degraded performance on road in foul weather.
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<table border="0" cellpadding="6" cellspacing="0" width="100%"> <tbody><tr> <td class="alt2" style="border:1px inset"> Originally Posted by
eddiebx
Given four sets of tires, two sets (one set of 265/70r17 and another set of 285/70r17) with deep water channeling tread pattern, and two similar sized sets but with wide flat large tread blocks; the tires with the deep water channeling tread pattern will out perform the other ones in the rain no matter the size.
Would you look at that, it does "work both ways..."
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I agree with that 100%. I never suggested comparing a larger MT tire to a smaller tire specifically designed for xxxx (fill in the blank). I'm suggesting comparing the exact same brand and tire in different sizes. If you look closely at what I posted, I didn't say the stock tire is better in the rain than your larger 285/70R17 size, I said the stock size - as in the stock size in the exact same tire, no difference except size.
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<table border="0" cellpadding="6" cellspacing="0" width="100%"> <tbody><tr> <td class="alt2" style="border:1px inset"> Originally Posted by
eddiebx
I'm pretty sure most of us can sit here all day long making up hypothetical scenarios to disprove people by only telling part of the story, but please for the sake of providing accurate information on a public forum which other people read (and might take as fact), disclose your entire thoughts completely, instead of just the part that alludes to you proving someone else wrong.
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You seem to be reading intent on my part where there is none. My two Tacomas ride on Micky Thompson ATZ's in 265/75R16 and 265/70R17 respectively for the OR and Sport. I have been very pleased with their performance they handle on road, on road foul weather and off road chores very well (much as you describe your satisfaction with your tires).
I am about to purchase a set of tires for my wife's <acronym title="Toyota 4Runner">T4R</acronym>, I will be purchasing Micky Thompson ATZ's. Will I purchase the 285/70R17 or 265/70R17? The tire brand, type has been decided, only question is the size. Everyone acknowledges that the larger tire will degrade gas mileage in comparison to the smaller size, many believe it is worth it for the slight increase in performance off road vs the smaller size. My point was that the gas mileage decrease is not the only negative to the larger tire - there is a slight decrease in on road foul weather performance. The larger tire is not much different in performance on road than the smaller tire, just as there is not much difference in the slight increase in off road performance vs the smaller tire.
That's what I meant by it works both ways....
From the above links:
Why Downsize?
For the most part, downsizing is great for that second set of winter tires. Snow tires tend to become much more expensive at sizes larger than 17”. In addition, the narrower the tire, the more effective it tends to be on snow and ice. So if you have 18” or 19” wheels and want an extra set of wheels for snow tires,
it’s often a good idea to go down to 17” or 16” wheels for the winter set, which will give you better winter performance at a lower price.
If you look at the other links and go down to the graphs at the bottom you can see a direct comparison of the plus sized tires in hydroplaning performance. This difference is primarily due to the increased width, not due to the decreased sidewall. I understand this is not the clearest example to look at, as I said before I was running short on time this morning and didn't have much time for google fu.
Greg,
I haven't had a chance to review your link yet, I will.
Thanks,
David
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