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Old 10-13-2013, 02:02 AM   #1
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Default Need new tires- size question

My 95 Bonne SE needs some new shoes. Normally not an issue but I noticed the previous owner had 205/70/15'* installed. Stock size is 215/65/15 on the SE. Since I'm not really well versed in the differences is there any advantage to running the 205/70/15'* vs. the stock size?

From what I know the one'* I have now are narrower and taller than stock, but is there really any advantage to it for a DD? These are the steel rims if it matters.
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Old 10-13-2013, 08:51 AM   #2
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They were probably cheaper, but I'm surprised the shop installed such tall and narrow tires on a boat such as a Bonneville. Go with the factory spec. You have more tread on the ground and your not susceptible to roll off the bead because your CG is up higher.

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Old 10-13-2013, 11:03 AM   #3
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your talking 10mm difference in width and hardly any difference in height. not likely going to notice any difference, so if its a size that cheaper or easier to find in the brand you want, i would say either is fine. much more important is matching is the type and brand of tire to what you want it to do
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Old 10-16-2013, 01:16 AM   #4
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My PA is factory spec'ed at 205/70R15. I have seen both sizes out there. Either size is fine.

I also believe in running a tire pressure that works too. I believe GM recommendation is 30 psi, which is another joke. I try to do 40 in front (tires rated to 44psi) and 35 in the rear.
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Old 10-16-2013, 10:32 PM   #5
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My car has 205/70R15 stock too. It'* much cheaper than a 215/65R15 because its a more common tire. There'* very minor differences in the overall size, so I don't really see any problem running them. Some shops might not install them on your car though, because it isn't what the car calls for.
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