Wheel and Tire

assymetrical tires

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Old Jun 14, 2007 | 03:27 PM
  #1  
namax's Avatar
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Default assymetrical tires

If a tire is assymetrical and unidirectional, shouldnt the tires on the left side of the car have an opposite tread pattern to the tires on the right side?
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Old Jun 15, 2007 | 01:22 PM
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Default Re: assymetrical tires (namax)

Anyone? I am thinking about buying Nitto NeoGen tires, but if all four tires are the same, the tread patterns will be different depending what side of the car you are looking at. Maybe this doesn't matter from a performance standpoint, but i think it will look weird.
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Old Jun 16, 2007 | 09:51 AM
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Default Re: assymetrical tires (namax)

lol this is kinda funny, ok lets say the water groove on the tire goes like this \ if you take the tire and flip it around the water groove will go like this /

run two on the left side one way and two on the right side the other way like this / \


not like this lol \ \


hope that made sense


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Old Jun 16, 2007 | 01:45 PM
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Default Re: assymetrical tires (Scotty Dosent Know)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by namax &raquo;</TD></TR><TR><TD CLASS="quote">If a tire is assymetrical and unidirectional, shouldnt the tires on the left side of the car have an opposite tread pattern to the tires on the right side?
</TD></TR></TABLE>

I'm not sure whether you're referring to tires that are asymmetric and non-directional, or symmetric and directional (uni-directional means the same thing as directional).

Some tires are asymmetrical and non-directional (like the ones you're talking about), and other tires are symmetrical but directional/rotational. Tires that are asymmetrical and unidirectional are usually designed to maximize dry traction, with a different tread pattern on the outer part of the tread from the inner part. The same is true on both sides of the car - the outer part of the tire looks the same on both sides of the car.

These are the tires that, as Scotty Doesn't Know notes, often have tread patterns that look like this:

///////////
///////////
///////////
///////////
///////////

For example, the Falken Azenis RT-615 is asymmetric and non-directional, and looks like this:



The part of the tread with the widest tread blocks, shown as the left/nearer edge in this photo, should be the outside edge of the wheels, on both sides of the car.

Other tires are symmetric but directional (uni-directional). They are designed to rotate in a specific direction. This is usually done so that they are good at shedding water; they should be mounted so that, as the car moves forward, the tread pattern channels the water from the center of the tread to both outer edges.

These are the tires that, as Scotty Doesn't Know notes, usually have tread patterns that look like this:

\\\\\\//////
\\\\\\//////
\\\\\\//////
\\\\\\//////
\\\\\\//////
\\\\\\//////

For example, the Kumho MX is symmetric and directional, and looks like this:



This tire is mounted on the wheel so that it should be used on the left side of the car (passenger side, in North America and mainland Europe). If it were flipped on the rim, so that the outer face of the wheel were at the left side of the tread as pictured, it would be used on the right side of the car.

A few tires - VERY few, mostly OEM tires designed for specific cars - are both asymmetric and directional. Those tires have different part numbers (different tires) for a tire that's used on the left side of the car, and one that's used on the right side of the car.

Hope that makes sense.

The Nitto NeoGen is asymmetric and non-directional; like the Falken Azenis shown above, it is supposed to be mounted so that the part of the tread pattern with the widest tread blocks is mounted on the outside, towards the wheel, as shown here:



The NeoGen is also an all-season tire, designed for those who have to use the same tires in snow and frigid cold as the rest of the year. It's okay, but if you need all-seasons, I think the Kumho ASX gives better performance for less money.
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Old Jun 26, 2007 | 04:59 PM
  #5  
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Default Re: assymetrical tires (nsxtasy)

yeah, ok. I thought that was a misprint about the Neogens being non-directional. I just thought it would look dumb from the rear of the car if the tread lines are going the same way on both wheels, like this |/|-----|/|. Thanks for the confirmation. I just got the Neogens today. I wanted a good all season tire that performed well, and I've heard much more good things than bad things about them, and I got them at a good deal. Thanks
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