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Rotating Directional Tires for Dry Conditions #5287020 12/06/19 03:42 PM
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CharlieBauer Offline OP
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I have directional staggered tires that have never been rotated. The rears have worn unevenly.

I am thinking that once our rainy season is over (it doesn't rain in much of CA for half the year), could I swap the rears?

I read that in dry conditions, directional tires are better for high speed. But what kind of speeds are we talking about?


It ain't what you don't know that gets you into trouble. It's what you know for sure that ain't so.

- mistakenly attributed to Mark Twain
Re: Rotating Directional Tires for Dry Conditions [Re: CharlieBauer] #5287080 12/06/19 04:43 PM
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JLTD Offline
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Sure you could swap L-R but since they're directional you'd need to switch rims and pay for mount and balance.


"Let’s not pretend like 0w20 is anything but a CAFE required crutch to eek another 1/2MPG" - BLND1

Hers: 2018 Ford Flex AWD EB, 35k, dealer fill

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Re: Rotating Directional Tires for Dry Conditions [Re: CharlieBauer] #5287139 12/06/19 05:53 PM
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old1 Offline
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I think he is asking if it would hurt to just switch sides, and run the directional tires backwards.


2017 Nissan Frontier 4.0 5w30
1965 Mustang 200 c/4 10w30 QS defy
1964 Ford Ranchero 302 c/4 15/40 Delo
Re: Rotating Directional Tires for Dry Conditions [Re: old1] #5287152 12/06/19 06:18 PM
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CharlieBauer Offline OP
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Originally Posted by old1
I think he is asking if it would hurt to just switch sides, and run the directional tires backwards.


Yep. For driving in the dry only (6-8 months in CA).


It ain't what you don't know that gets you into trouble. It's what you know for sure that ain't so.

- mistakenly attributed to Mark Twain
Re: Rotating Directional Tires for Dry Conditions [Re: CharlieBauer] #5287177 12/06/19 07:14 PM
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Originally Posted by CharlieBauer
Originally Posted by old1
I think he is asking if it would hurt to just switch sides, and run the directional tires backwards.


Yep. For driving in the dry only (6-8 months in CA).


Totally your call, but I wouldn't do it.

Maybe CapriRacer will be by shortly to add his expertise.


"Let’s not pretend like 0w20 is anything but a CAFE required crutch to eek another 1/2MPG" - BLND1

Hers: 2018 Ford Flex AWD EB, 35k, dealer fill

His: 2015 4Runner 60k, SS 5w20/Amsoil

Re: Rotating Directional Tires for Dry Conditions [Re: CharlieBauer] #5287179 12/06/19 07:17 PM
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slacktide_bitog Offline
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If you got your tires at Walmart, their lifetime balance/rotation includes the flip/remount for directional tires smile

Re: Rotating Directional Tires for Dry Conditions [Re: CharlieBauer] #5287197 12/06/19 07:33 PM
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Eddie Offline
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I don't think Walmart includes the "flipping" tires during a free rotation. If the tire guy does it under cover be sure a give him a $20 tip. Ed


2014 CX5 Touring 2.5L :-)
Re: Rotating Directional Tires for Dry Conditions [Re: CharlieBauer] #5287519 12/07/19 08:20 AM
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CapriRacer Offline
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You didn't say what kind of car you have, but I'll bet it is a RWD.

If so, the just swapping directional tires left to right is going to reduce the wet traction somewhat, so be careful with the throttle when it rains.

If not RWD, then you need to reduce your speed when it rains - especially when cornering. Tires can hydroplane as low as 40 mph.


CapriRacer

Visit my web site: www.BarrysTireTech.com
Re: Rotating Directional Tires for Dry Conditions [Re: CharlieBauer] #5287594 12/07/19 10:10 AM
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ecotourist Online Content
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Originally Posted by CharlieBauer
... could I swap the rears?

I wouldn't without reversing them on the rims. They may work fine in the dry, but if you ever had an accident the fact they were on "backwards" could get major play. And if it came out that you had done that on purpose, you would be hard pressed to find anyone to support you.

If the fronts have relatively similar I'd leave them where they are.


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Re: Rotating Directional Tires for Dry Conditions [Re: CharlieBauer] #5287658 12/07/19 11:32 AM
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geeman789 Offline
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Here is a question ... why are some (most ... ) of the highest performance tires out there NOT directional ? Like Michelin PSS or PS4, Continental Extreme Contact etc.

If a directional tread design made such a huge difference in the rain, you know that the top tire makers would use it on their flagship performance tires. And they don't ...

That is because the actual performance difference is very small, and often only measurable at extremely high speeds. Tread DEPTH is vitally important, and the tread / void ratio plays a large role as well. The water needs a place to go.

The actual tread pattern itself makes little difference, IF the water has some place to go.


2011 SUBARU Impreza 5-door manual / 2016 HONDA Pilot / 2011 MAZDA 2 auto
Re: Rotating Directional Tires for Dry Conditions [Re: geeman789] #5288301 12/08/19 07:25 AM
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CapriRacer Offline
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Originally Posted by geeman789
Here is a question ... why are some (most ... ) of the highest performance tires out there NOT directional ? Like Michelin PSS or PS4, Continental Extreme Contact etc.

If a directional tread design made such a huge difference in the rain, you know that the top tire makers would use it on their flagship performance tires. And they don't ...

That is because the actual performance difference is very small, and often only measurable at extremely high speeds. Tread DEPTH is vitally important, and the tread / void ratio plays a large role as well. The water needs a place to go.

The actual tread pattern itself makes little difference, IF the water has some place to go.


Way back when, someone tested a directional tire for wet traction, then reversed the direction of travel. They got a 10% difference. That means that the difference between a directional tire and a non-directional tire is only 5%. I think a professional racecar driver could find that 5% useful, but I'll bet the average motorist could never tell.

And as pointed out above, tread depth makes much more of a difference.


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Re: Rotating Directional Tires for Dry Conditions [Re: CharlieBauer] #5288449 12/08/19 11:03 AM
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Traction Offline
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It's too late for those tires anyway. Just run them and start shopping for some new non-directional tires, and keep them rotated side-side, plus make sure the alignment is spot on.


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Re: Rotating Directional Tires for Dry Conditions [Re: CharlieBauer] #5288495 12/08/19 12:16 PM
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The only way to make a staggered tire fitment last longer is to dismount, flip and rebalance the tire. Most cars running a staggered set up have more rear negative camber than average, so that inside edge of the tire gets more wear, on either side of the car. The inside shoulder is always on the inside ... you need to flip the tire to move it to the outside.


2011 SUBARU Impreza 5-door manual / 2016 HONDA Pilot / 2011 MAZDA 2 auto
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