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tire size differences front to rear

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Old 04-04-2012, 10:37 PM   #1
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Default tire size differences front to rear

Is a 4% difference from front to rear tire size a major concern for stability/traction control? 245-45-18 front and 275-45-18 rear.
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Old 04-05-2012, 11:26 AM   #2
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Na, you'll be fine. Your car will be going a few miles faster than the speedo shows and you'll go farther than the odometer shows.

http://www.tacomaworld.com/forum/tirecalc.php
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Old 04-05-2012, 11:34 AM   #3
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You may have stab control issues with that much of a difference in tire size. You should try and keep the front and rear tires as close to the same diameter and or circumference as possible.
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Old 04-05-2012, 11:59 AM   #4
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Why not go with 275/40 on the rear and there will be no real difference.
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Old 04-05-2012, 03:31 PM   #5
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i got a set of nice continentals that were 275/45/18 for $100 ea.... i was not going to pass that up. I just don't know how big the difference has to be for the traction control of stability control to activate. I sure as hell don't want it activating at freeway speeds for no reason.
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Old 04-06-2012, 09:11 AM   #6
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I want to say 4% is a large enough difference to trigger the stability control... however I don't have first-hand experience to back that up.
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Old 04-06-2012, 09:17 AM   #7
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Im on 245 35 19 up front and 275 30 19 in the rears. And I am fine. Going up to 285 30 in teh rears next time.
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Old 04-06-2012, 09:38 AM   #8
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biggie I have 245/45/18 on the front and 265/40/18 on the rears (instead of the 275's most ppl run). No probs dont know if that helps.
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Old 04-06-2012, 09:45 AM   #9
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Go big... Why I want 285s. Also thinking spacers in the fronts.
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Old 04-06-2012, 10:03 AM   #10
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Quote:
Originally Posted by kl2onik View Post
biggie I have 245/45/18 on the front and 265/40/18 on the rears (instead of the 275's most ppl run). No probs dont know if that helps.
That's only a 1.3% difference. Non-issue.
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Old 04-06-2012, 10:05 AM   #11
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Quote:
Originally Posted by CTSVBiggie View Post
Im on 245 35 19 up front and 275 30 19 in the rears. And I am fine. Going up to 285 30 in teh rears next time.
Your current setup is only a 1% difference, and going to 285 would make that a .1%
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Old 04-06-2012, 10:27 AM   #12
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I am running 245/45 Front and 275/40 rear...no serious issues. Outside of a slight rub after I went lower, but that has been fixed.

OP, there it will not be a huge deal going 245/45 275/45 front and rear. However, you will see the the stabilitrak and T/C engage a little more then with stock size at all 4 corners. But the way I faxed that is, I drive with "Competive Driving Mode" on at all times (unless there is rain/wet roads). If you are lowered, you will need to roll the lip on the inner fender well, or you will see some rubbing.
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Old 04-06-2012, 10:47 AM   #13
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Im running at stock height. Ill have to get my Tpms all fixed now.
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Old 04-06-2012, 05:53 PM   #14
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Quote:
Originally Posted by CTSVBiggie View Post
Im on 245 35 19 up front and 275 30 19 in the rears. And I am fine. Going up to 285 30 in teh rears next time.
Having a smaller or larger rolling diameter from stock won't be an issue. It's the difference from front to back that's the issue.

I ran 245/40 18 track rubber all the time with zero issues. I had 245/45 18; 275/40 18 street rubber for years with zero issues.
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