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Mazda CX-9 Tires and Wheels

70 messages,  Last post on Mar 11, 2009 at 10:49 AM

You are in the Mazda CX-9 Forum. Your Hosts are steve_ & tidester

What is this discussion about? Mazda CX-9, Mazda, SUV


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#31 of 70
Re: Chains for 20" wheels [redginton] by zotomomo
Mar 03, 2008 (2:55 pm)
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Replying to: redginton (Mar 03, 2008 8:51 am)

Check out the Super Z6 cables here:
http://www.vulcantire.com/cgi-bin/chainsearch.cgi?size=245/50-20&model=SZ435&f=c- hainz6_c.htm
 
Just bought a set for my 20" wheels. They need very little clearance. These guys shipped it out fast.
#32 of 70
Re: Chains for 20" wheels [zotomomo] by maltb
Mar 03, 2008 (5:26 pm)
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Replying to: zotomomo (Mar 03, 2008 2:55 pm)

I bought similar ones for my 18's; they fit well and were easy to get on/off.
Z-Chains
#33 of 70
Re: Chains for 20" wheels [zotomomo] by rhann
Mar 03, 2008 (9:40 pm)
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Replying to: zotomomo (Mar 03, 2008 2:55 pm)

Thanks for the link. Those chains look like a good option. We will likely keep the 20" wheels as we rarely need chains and they look a little cooler.
#34 of 70
Re: 20" Wheels - Ride Quality [belaircarguy] by 16ue
Mar 06, 2008 (10:37 pm)
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Replying to: belaircarguy (Dec 25, 2007 4:21 am)

Door post showed 34 PSI recommended. The tires were actually inflated to 45-46 PSI. Once adjusted to 34 PSI I took the CX-9 for a spin around the neighborhood and could feel quite a difference.
 
The tires on my CX-9 GT that I took delivery in January 2008 in California were also over-inflated to 46 when hot but dropped down to 40.5 when the car sat in the garage overnight. I reduced the tire pressure to 35 psi when cold. The ride is definitely less bumpy now.
#35 of 70
Re: 20" Wheels - Ride Quality [16ue] by ceric
Mar 06, 2008 (11:58 pm)
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Replying to: 16ue (Mar 06, 2008 10:37 pm)

Tires on new vehicles were over-inflated for the sake of preventing flat-spotting during long transportation and sitting on parking lots. Dealers are expected to adjust the pressure and top off all fluids before deliver the vehicles to customers. Often than not, they didn't do their job.
Check your tire pressure and fluid level. You would be surprised.
#37 of 70
Re: 20" Wheels - Ride Quality [ceric] by kbedwards
Jul 30, 2008 (5:58 am)
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Replying to: ceric (Mar 06, 2008 11:58 pm)

Within a couple of months of owning my CX-9, I was going up a ramp in a parking garage (SLOWLY obviously) and nipped the concrete barrier (approx 5-7" high, i.e. lower than a typical parking concrete "block") and blew out the two right side tires. I couldn't believe it. At the speed I was going, and the height of the obstacle, I was shocked at the carnage.
 
I wonder if mine were overinflated as well. No way to tell now of course. That was an expensive lesson.
#38 of 70
Re: 20" Wheels - Ride Quality [kbedwards] by ceric
Jul 30, 2008 (9:30 am)
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Replying to: kbedwards (Jul 30, 2008 5:58 am)

The sidewall of most tires are only polymer and rubber. The concrete barrier your tires ran into might have a sharp edge to it. It happened to me long time ago on my old Honda Accord. No tires are immune to that if the concrete barrier has a sharp edge to it.
#39 of 70
Do I have to replace all four tires? by fishrule1
Jul 31, 2008 (5:12 am)
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Let's cut to the chase here: if I blow out a single tire on my `08 GT AWD, can I replace it alone, or do I have to replace all four tires? Tire stores will tell you that the latter is the case, of course, but what is the truth?
 
Oh, and, sorry if I missed the topic elsewhere. My search revealed nothing.
#40 of 70
Re: Do I have to replace all four tires? [fishrule1] by ceric
Jul 31, 2008 (10:43 am)
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Replying to: fishrule1 (Jul 31, 2008 5:12 am)

AWD system is more sensitive to left/right balance of tires on one axle.
By balancing, I meant
- diameter
- tire grip (same brand, same age/wear)
Even tire of the same "size" (i.e. 245/55R20) actually might have slightly different diameters (see tirerack.com for specs).
 
So, in short,
- if your tires are still new (few miles on them), I would buy the same tire and put just ONE on.
- if your tires are pretty worn, I would recommend you buy two (per axle) and keep the old one as spare. And, put the newer two tires on the rear axle.
 
That is just my opinion. Let us see what others have to say.

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