LS - 4th Gen (2007-2017) Discussion topics related to the current flagship models LS460, LS460L and LS600H

Any issues with running 235/55r18 tires?

Old 08-20-14, 10:59 AM
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Ascari_2
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Default Any issues with running 235/55r18 tires?

HI everyone,

I am in need of some new rubber and can get four 235/55r18 Michelin Premier A/S tires for just under $900 installed. This seems like a good price and the tires appear to have good reviews but the sidewall is 55 rather than 50 (these tires aren't available in a size 50).

So what would be the consequences (aside from throwing off the speedo) of running these tires?

It's either the Premiers in 235/55r18 or Primacy MXM4s in 235/50r18 for about $50 less.

Thanks
Old 08-20-14, 12:16 PM
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Nospinzone
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The 55's will take the potholes a little bit easier, that and the speedometer being off is about it.
Old 08-20-14, 12:18 PM
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sktn77a
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I like the Primacy MXM in the correct size(!) Also worth consideration is the Continental Extreme Contact DWS. The 55 series tires may have a slightly plusher ride at the expense of braking and cornering. I doubt you'll notice it though. Others on this forum have gone to the 55 series tire with (apparently) no fouling of the suspension or wheel arch.
Old 08-20-14, 01:42 PM
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williakz
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Originally Posted by Ascari_2
HI everyone,

I am in need of some new rubber and can get four 235/55r18 Michelin Premier A/S tires for just under $900 installed. This seems like a good price and the tires appear to have good reviews but the sidewall is 55 rather than 50 (these tires aren't available in a size 50).

So what would be the consequences (aside from throwing off the speedo) of running these tires?

It's either the Premiers in 235/55r18 or Primacy MXM4s in 235/50r18 for about $50 less.

Thanks
Supposed to be a general (not outlet-specific) mail-in rebate of $70/set of 4 starting Monday morning (8/25/14) according to the shopping around I did today (8/20/14). Good luck.
Old 08-21-14, 06:37 AM
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Ascari_2
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williakz: Thanks for the heads up.

I decided to go for the MXMs since they are low rolling resistance and will give me slightly better MPGs. I drive a lot so maybe over the life of the tire that will translate into slight savings.
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