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Tyres need replacing

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Old Jun 5, 2012 | 10:07 PM
  #1  
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suraj83
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Default Tyres need replacing

Hi guys,

i need to change my front two tyres and i was wondering what my options are.

currently i have 235/55/r18 on the original lexus rims...

i tried replacing the two front tyres with 255/55/r18, and the ride was excellent and felt well damped.

is it advisable to have two different tyre sizes on the front and the back wheels? (235/55 back, and 255/55 front?)
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Old Jun 6, 2012 | 06:09 AM
  #2  
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Originally Posted by suraj83
Hi guys,

i need to change my front two tyres and i was wondering what my options are.

currently i have 235/55/r18 on the original lexus rims...

i tried replacing the two front tyres with 255/55/r18, and the ride was excellent and felt well damped.

is it advisable to have two different tyre sizes on the front and the back wheels? (235/55 back, and 255/55 front?)
IMO they need to be the same. Replace the rear tires w/the same type as front.

http://www.tirerack.com/tires/TireSe...55&diameter=18
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Old Jun 6, 2012 | 06:59 AM
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It will alter the handling characteristics on unstable surfaces like rain, snow, etc. Even cornering on dry surfaces will need to be 'felt' out. Rolling diameter is the same but lateral holding forces are changed. Just take it easy until you know how it's going to handle and get matching tires for the rear when you can.
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Old Jun 6, 2012 | 10:41 AM
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Originally Posted by suraj83
is it advisable to have two different tyre sizes on the front and the back wheels? (235/55 back, and 255/55 front?)
Not advisable but it's not the end of the world as indicated in the prior reply. It would also restrict your ability to fully rotate.
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Old Jun 6, 2012 | 01:14 PM
  #5  
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RX330inFL
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From: FL
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Originally Posted by suraj83
is it advisable to have two different tyre sizes on the front and the back wheels? (235/55 back, and 255/55 front?)
FWD or AWD?

If AWD... no, they should all be the same size.
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Old Jun 6, 2012 | 03:12 PM
  #6  
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From: Sav. GA- but still Yankee at heart ; )
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No doubt, it always helps the ride quality / road noise to upsize at least one metric size.

But, you really need to do it on all four corners. Your speedo will be off a few MPH.
So figure that out before you get a speeding ticket.
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Old Jun 11, 2012 | 08:36 AM
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Not the end of the world if you have two fronts that are different, but it's best to use the same brand and rotate them so they wear out about the same time. Also, it looks down right cheap (I'm pretty cheap, but I draw my line here) to drive a semi-luxury car with two different sets of tires - reminiscent of crappy vans with different brands at all four corners.

Also, you can catch sales on tirerack that are pretty reasonable. I just bought a set at $115 each + shipping for about $525 total. Had to sell them to my in-laws as I traded in my RX

Last edited by howdybob22; Jun 11, 2012 at 08:58 AM.
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