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Turbo S rear tire size???

It's been getting more and more difficult to find the correct size for my rear tires; 205/45-16.

What is everyone doing for their rear tires? Is there a compatible size? I want to keep the OEM rims.


Thanks,
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Old 05-03-2012, 09:15 AM
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Rears for the Turbo S are 245/45-16. 205-series tires are way too narrow.

No-one seems to be making 245/45-16 tires anymore though, aside from some track and competition DOT semi-slicks.

The tire sizes for the regular 951 would probably fit (225/50-16 rear and 205/55-16 front) without mucking up the rolling diameter or looking too weird.
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Last edited by AaronM; 05-03-2012 at 10:21 AM..
Old 05-03-2012, 10:14 AM
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Sorry typo, You're rite its 245

I've seen a couple of close sizes:

245/50-16 g-Force
255/50-16 g-Force

Would any of these work?

Thanks
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Old 05-03-2012, 11:03 AM
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Use a tire size calculator to get an idea:

http://www.miata.net/garage/tirecalc.html
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Old 05-03-2012, 03:08 PM
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I guess the 245/50-16 is the closest...

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
245/45-16 4.3in 12.3in 24.7in 77.5in 817 0.0%
245/50-16 4.8in 12.8in 25.6in 80.6in 786 3.9%
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Old 05-03-2012, 06:50 PM
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that'll throw your speedo off: one inch is about a 8mph difference at 60mph: i've tried it many years ago running a 275/40-17 viper tire: gotta stay with the smaller diam.

I have a set of Turbo S wheels off my TS, sitting in my attic while my car is fitted with 285/30-18's: perfect diameter, more traction. :/
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Old 05-04-2012, 07:33 AM
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245X50X16 will make your speedo read slow....speedo shows 60mph, actual speed is 62.3mph....this will also make the odometer read slow. Sorry to say this, but the tire selection for 16 inch wheels is getting smaller all the time. As manufacturers continue to enlarge wheel diameter, the older smaller tires become less popular (and profitable) so they get dropped from the line.

My 16" club sport wheels are now track wheels, and I use 17" for the street....255x40x17 and my speedo reads slow by only 9/10ths of a mile, 60mph is actually 60.9mph
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Old 05-04-2012, 08:54 AM
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i just got these bfgoodrich sport comp 2 in 255/50/16

imo, not as good as the goodyear eagle f1 gs-d3's they replaced (discontinued), but still a very good tire.
BFGoodrich*g-Force Sport COMP-2
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Old 05-04-2012, 10:31 AM
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If I use the regular 951 rear tires 225/50-16 the speedo is only off by .4
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Old 05-04-2012, 10:37 AM
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I'm about to get the Falken Azinis 615K's for my 87 non S with 7x16f and 8x16r. They come in 215/45/16 @23.6" dia. and 225/50/16 @24.9 dia. These are a 200 wear rate so they won't last as long as the 300-400 wear rate that is more common for our cars. I don't care because I work at home, have 4 other cars and only drive the 951 to chase twisties or road trips to get to twisties. They do real good in the wet, actually they're used as wet race tires. Even though they aren't as wide as the 225's and 245's I've always had, I believe they'll stick better because I have a street Miata set-up with spec Miata suspension. Was running some Dunlop 205/45/16's - changed to 195/60/14 on stock wheels. Way better grip. --My 2 cents--

Barry
Old 05-04-2012, 11:22 AM
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toyo T1R's are a widely distributed tyre down this end of the world and popular with enthusiasts that see the odd track day. I just bought 225/50/16's and 245/45/16's, both of which were readily available. R888's are regarded as the next step up from these.



Our are roads are volcanic chip and we see moderate temps in winter, mostly just rain. I expect to get about 3-4 yrs life out of these, even with the occasional trip to the track.
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Old 05-05-2012, 03:03 PM
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This tire size has been unavailable for quite some time. A few years.

245/45/16 (yet again)
245/45/16 (group buy?)

Most folks seem to be upgrading to 17's. I know the deal - been looking for tires for about two years now, can't find room in the budget new wheels let alone wheels and tires!

However if you want to run 265s, there's a thread on the turbo forum, search "kumho gift from tire gods" or something like that.

Good luck, let me know if you have any leads.

Take care!
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I just finished chatting with Tire Rack. They stated Bridgestone Potenza RE-11 have the correct size: 245/45-16

2 problems:

1. National backorder
2. $224.00
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Old 05-18-2012, 11:29 AM
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Thumbs up Falken 225, 245 /255 50 16 "Nothing but Love..."

They work great!
Best handling for the $$...Low road noise and longer treadlife...
Only other option is dunlop or michelin.

Later.
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Old 06-05-2012, 09:37 PM
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I was looking at the Firehawks: 245/50/16
Maybe even the BFG g-Force
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Old 06-06-2012, 04:12 AM
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there is another thread with a discussion about the re-11's being made again in 245/45/16 which is a fantastic tire;
245/45-16 Bridgestone RE-11s
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Old 06-06-2012, 11:25 AM
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I'm sure they are a fantastic tires. But holy cow!!! I just spent almost the same amount on my 996 18" tires (Pilots)! I know it's all about supply and demand.

Good news is they came down $10 since the last time I looked. Maybe once the initial hype is over, they will be priced accordingly with similar sizes (150-175 range).
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Old 06-06-2012, 11:48 AM
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+1 on the Toyos!
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re

Nice

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Old 06-11-2012, 09:13 PM
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Primewell has 245 45 16 and 225 50 16 (Turbo S OEM sizes) in a summer tire. Firestone.
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