anyone use 215/40r17's for the front tires? - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 6 (permalink) Old 07-01-2014, 04:10 PM Thread Starter
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anyone use 215/40r17's for the front tires?

so i recently obtained for free a pair of Nexen N5000 215/40r17 tires in near new condition. they were on some lexus wheels someone decided to just throw out. i just so happened to be in desperate need of new tires (its a miracle i didnt have a blowout). so i had these tires installed and with the smaller sidewall obviously they look much nicer on the front. i know it was going to throw my speedometer off a bit, but now my TCS light comes on and occasionally when braking (on the harder side) the ABS wants to kick in too. is there any simple solution to this or am i ultimately going to have to rotate them to the back? Advice anyone?
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post #2 of 6 (permalink) Old 07-01-2014, 08:13 PM
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Originally Posted by drice9988 View Post
so i recently obtained for free a pair of Nexen N5000 215/40r17 tires in near new condition. they were on some lexus wheels someone decided to just throw out. i just so happened to be in desperate need of new tires (its a miracle i didnt have a blowout). so i had these tires installed and with the smaller sidewall obviously they look much nicer on the front. i know it was going to throw my speedometer off a bit, but now my TCS light comes on and occasionally when braking (on the harder side) the ABS wants to kick in too. is there any simple solution to this or am i ultimately going to have to rotate them to the back? Advice anyone?
Cool. Another person! Im located in Goose Creek and so are at least two other members.

For your question, not really sure how that works but what size are your back tires? I think the main problem would be the tires are different sizes.

I run 215/50r17 all around on the stock rims so far.


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post #3 of 6 (permalink) Old 07-03-2014, 04:26 PM Thread Starter
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i have 215/50r17 on the back. i just had to fork out a good chunk of change for a new throttle body. i had one of the defective VP3M4U-9E928-AA tb's and ended up buying a brand new 3.7 with a conversion kit. then after all that i needed a new battery. not much left in the wallet for tires after all that so these 215/40r17s are what's gonna have to do. im having to turn my tcs system off every time i drive so it doesnt try to "correct" itself. in overall tire height difference from the 40s to the 50s is a good 1.69" though. throws my speedometer off by about 5-6mph off
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post #4 of 6 (permalink) Old 07-03-2014, 05:09 PM
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Yeah, if all 4 tires were the same size you wouldn't be having the problem. The difference in RPM between the two sizes is confusing the ABS/Trac system.

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post #5 of 6 (permalink) Old 07-04-2014, 12:48 PM Thread Starter
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Originally Posted by kevinspann View Post
Yeah, if all 4 tires were the same size you wouldn't be having the problem. The difference in RPM between the two sizes is confusing the ABS/Trac system.
This shouldnt be a significant issue should it? im not as concerned about the Trac system as much as the ABS since it affects my braking ability slightly. so far ive noticed that i just need to brake a little lighter and earlier than usual. wondering if it would wear out my brake pads out at a faster rate.
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post #6 of 6 (permalink) Old 07-06-2014, 08:38 PM
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I have tired it with my car. If your suspension is still original, not a problem at all. But if you have obtained a suspension upgrade, let say lowering spring or coils. The the front wheels may have some rubbing issues in every full turn you do.
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