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Jul 31, 2008 7:56:35 PM

spluff: Co-Pilot; Loc: UK , United Kingdom; Posts: 200, Gallery; Registered on: Dec 12, 2006

tread direction

The car has michelin sports and the passenger side the tread is going one way the driver the other. It says outside on all the tyres.

I presume this is normal - is it? :P

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Jul 31, 2008 8:03:34 PM

Minok: Co-Pilot; Loc: Pacific Northwest; Posts: 263, Gallery; Registered on: Jun 29, 2008; Reply to: spluff

Re: tread direction

Looks like the tread on that tyre is asymetric.

Pilot Sport PS2 image from tire rack

As such, the left side can look different than the right, with the tire rolling in the correct direction.

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Jul 31, 2008 8:25:43 PM

Grant: Rennteam VIP; Loc: Denver, CO , United States; Posts: 12588, Gallery; Registered on: Aug 21, 2002; Reply to: spluff

Re: tread direction

Quote:
spluff said:
The car has michelin sports and the passenger side the tread is going one way the driver the other. It says outside on all the tyres.

I presume this is normal - is it? :P

Is there an arrow indicating direction of rotation? If not, then you're fine as long as "outside" is on the outside. Some tires are asymetrical (outside and inside), some are directional (clockwise or counterclockwise) and some are both...

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Jul 31, 2008 8:29:55 PM

spluff: Co-Pilot; Loc: UK , United Kingdom; Posts: 200, Gallery; Registered on: Dec 12, 2006; Reply to: Grant

Re: tread direction

wow confusing lol
the curve i can see is the one to the right of the picture..... on the left it curves that way on the right it curves the other way.....

no arrow indication direction - just the word outside on it.

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Jul 31, 2008 8:44:33 PM

JoeRockhead: Rennteam VIP; Loc: Topside , Monaco; Posts: 8033, Gallery; Registered on: Sep 17, 2007; Reply to: spluff

Re: tread direction

I just checked my 997S with PS2's... they are mounted like this:

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Jul 31, 2008 8:49:03 PM

spluff: Co-Pilot; Loc: UK , United Kingdom; Posts: 200, Gallery; Registered on: Dec 12, 2006; Reply to: JoeRockhead

Re: tread direction

hmmmmmm mine is mounted like

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Jul 31, 2008 9:22:58 PM

JoeRockhead: Rennteam VIP; Loc: Topside , Monaco; Posts: 8033, Gallery; Registered on: Sep 17, 2007; Reply to: spluff

Re: tread direction

Yeah, that's more accurate. I thought you meant the orientation of the three vertical treads being to the inside.

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Jul 31, 2008 9:28:10 PM

spluff: Co-Pilot; Loc: UK , United Kingdom; Posts: 200, Gallery; Registered on: Dec 12, 2006; Reply to: JoeRockhead

Re: tread direction

phew

thinking logically it makes sense that the tyre is rotate 180o

Does this not make the performance of the tyres worse?

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Jul 31, 2008 9:44:09 PM

JoeRockhead: Rennteam VIP; Loc: Topside , Monaco; Posts: 8033, Gallery; Registered on: Sep 17, 2007; Reply to: spluff

Re: tread direction

I wouldn't think that the direction of the vertical treads is relevant to water dispersion which is their primary function. The contact patch is the same on both sides, so there would be no adverse effect on performance.

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Aug 1, 2008 1:49:04 AM

jeffbco: Pilot; Loc: Denver; Posts: 494, Gallery; Registered on: Mar 18, 2006; Reply to: JoeRockhead

Re: tread direction

Easiest thing to do is look on the sidewall - if it says "outside" then it's mounted correctly. If it's a directional tire (not PS2's) then you will see an arrow showing rotation direction.

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