Tyre Load Rating Help - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Pegasus_86 · 08-13-2015, 09:24 PM

Hi all, this is my first post here and I am after advice regarding tire selection.

I am located in Australia and have a Toyota 86 GT fitted with the original 16" alloy wheels and 205/55/16 Yokohama tyres. The original tyres have a 91 load rating.

I recently purchased a set of 18" TRD USA wheels that are recommended to run a 215/40/18 front tyre. Unfortunately I cannot find a tyre in this size that meets the original load rating, which I need to comply with to maintain road worthiness.

I am thinking of stepping up to a 45 profile tyre which can be had in 91 and 93 load ratings. Besides the speedometer being out by a few km at 100km/h, is there anything else that I should watch out for?

Thanks

jawn · 08-13-2015, 09:35 PM

Can you run a 225/40/18? There are a lot of 92 rated tires in that size.

Pegasus_86 · 08-13-2015, 09:50 PM

I am not sure how well that tyre would work on a 18x7" wheel. Thoughts?

edit: I'd also have to step up the rear to a 235/40/18 for the 18x7.5" wheel?

tyrantcf · 08-13-2015, 10:32 PM

You don't really have to stick the OEM load rating, as you are switching to a completely differently sized tire with different characteristics.

08-13-2015, 09:24 PM	#1
Pegasus_86 Junior Member Join Date: Aug 2015 Drives: Toyota 86 Location: Australia Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Tyre Load Rating Help Hi all, this is my first post here and I am after advice regarding tire selection. I am located in Australia and have a Toyota 86 GT fitted with the original 16" alloy wheels and 205/55/16 Yokohama tyres. The original tyres have a 91 load rating. I recently purchased a set of 18" TRD USA wheels that are recommended to run a 215/40/18 front tyre. Unfortunately I cannot find a tyre in this size that meets the original load rating, which I need to comply with to maintain road worthiness. I am thinking of stepping up to a 45 profile tyre which can be had in 91 and 93 load ratings. Besides the speedometer being out by a few km at 100km/h, is there anything else that I should watch out for? Thanks

08-13-2015, 09:50 PM	#3
Pegasus_86 Junior Member Join Date: Aug 2015 Drives: Toyota 86 Location: Australia Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I am not sure how well that tyre would work on a 18x7" wheel. Thoughts? edit: I'd also have to step up the rear to a 235/40/18 for the 18x7.5" wheel? Last edited by Pegasus_86; 08-13-2015 at 10:09 PM.

08-13-2015, 10:32 PM	#4
tyrantcf Senior Member Join Date: Apr 2014 Drives: '16 WRX, CBR1000RR Location: Bakersfield, CA Posts: 560 Thanks: 422 Thanked 369 Times in 213 Posts Mentioned: 18 Post(s) Tagged: 1 Thread(s)	You don't really have to stick the OEM load rating, as you are switching to a completely differently sized tire with different characteristics. __________________ Phantom ESC'd Build Thread (Retired):http://www.ft86club.com/forums/showthread.php?t=75293

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08-13-2015, 09:35 PM	#2
jawn Senior Member Join Date: Jun 2015 Drives: 2015 CWP BRZ Limited Location: NOVA Posts: 2,800 Thanks: 1,801 Thanked 3,946 Times in 1,757 Posts Mentioned: 105 Post(s) Tagged: 7 Thread(s)	Can you run a 225/40/18? There are a lot of 92 rated tires in that size.

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