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Author Topic: 215/45/17 on stock wheels?  (Read 8766 times)
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Roast Beef
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Posts: 79



« Reply #15 on: February 14, 2006, 06:48:45 PM »

Responses are all over the map.
Some 215/45/17 don't rub, some do.
Some say 225/45/17 are fine, others say no way (they rub easily).
Some say 235/40/17 are too wide for stock rim, others disagree.
Some say 225/40/17 will fit and not rub.

Is the tire brand making the difference?
If so, what is good tire to prevent rubbing for these sizes?



The brand does make a difference.

I would think that if some 215/45s rub then 225/45s would have significant rubbing problems. 

I'll probably end up with 215/40's, since 235s seem to require an 8" wide wheel and the MSM wheels are only 7" wide.
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2004 Velocity Red MSM (sold)
2006 Evo IX SE
Keeper of the FAQs
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Posts: 1221


« Reply #16 on: June 21, 2006, 02:25:25 PM »

Responses are all over the map.
Some 215/45/17 don't rub, some do.
Some say 225/45/17 are fine, others say no way (they rub easily).
Some say 235/40/17 are too wide for stock rim, others disagree.
Some say 225/40/17 will fit and not rub.

Is the tire brand making the difference?
If so, what is good tire to prevent rubbing for these sizes?



The real question you should be asking is: have the folks telling you something doesnt work actually done it? When several people tell you 'Im doing X and it works fine' and then a couple of people say 'thats wrong, there is no way that could work'... I know who I would believe.

This goes for pretty much any mod on the car. A lot of us got told, in no uncertain terms that the things we had already done to our cars would
1) Never work
2) Wouldnt make a diffrence
3) were totally dumb and there was a better way to do it.

A good rule of thumb: If someone hasn't actually tried a change, and cant provide a solid answer besides 'no', have a lot of doubt. ESP when you have other folks raising thier hands saying 'oh yea, that works fine, I did it on my car, no problem'
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Derek
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« Reply #17 on: July 05, 2006, 02:28:16 PM »

Anybody use this?
http://www.miata.net/garage/tirecalc.html
It's a tire size calculator (that I've been using for years) that'll let you know how your speedo is going to change.

I was thinkin' a 215/40/17 would provide just a little more grip and a little bigger sidewall that will protect your wheels a little more but wont get your speedo off.

Hope that's useful.  sssmilely
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2005 xB
Curious about the MSM...
SilverMiataRacer
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« Reply #18 on: July 06, 2006, 08:26:43 PM »

TThe only problem with any tire calculator is they assume the tire sizes are standard.  Sometimes a manufacturers specs aren't standard.  The best way to use the tire calc to get real results is to look up the tire you have and get it's specs from a place like Tire Rack and make sure the size you enter gives you that spec.  Then do the same thing for the tire your picking.  I've found as much as a 1/2" difference from reality.
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Larry

4 Miatas but who's counting!!   Cool

White Knight    1991 Crystal White   #99 CSP
Silver Bullet     1992 Silverstone     #17 SM2  FM I+ Turbo  (Gone but not forgotten)
Honey B          1992 Sunburst Yellow #99 SM2 J.R. M45
Whooosh         2004 Titanium MazdaSpeed MX5  #403 of 4000
Subie              2006 Steel Gray WRX STi Cobb Stage 2 (Gone but not forgotten)
No name yet    2008 Velocity Yellow Tintcoat Z06 Corvette
No Name yet    2014 Ashen Grey Metallic Camaro 2SS 1LE

“There are only three sports: mountain climbing, bull fighting, and motor racing. All the rest are merely games.”
– Ernest Hemingway
Derek
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« Reply #19 on: July 06, 2006, 08:41:33 PM »

1/2" ? Wow, that's significant.
Is that a between manufacturer comparison, or a (same manufacturer, same tire) comparison?
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2005 xB
Curious about the MSM...
SilverMiataRacer
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« Reply #20 on: July 06, 2006, 09:53:47 PM »

Between what the tire calc said a tire of that size should be in Dia. and what the manufacturers spec for their tire was.
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Larry

4 Miatas but who's counting!!   Cool

White Knight    1991 Crystal White   #99 CSP
Silver Bullet     1992 Silverstone     #17 SM2  FM I+ Turbo  (Gone but not forgotten)
Honey B          1992 Sunburst Yellow #99 SM2 J.R. M45
Whooosh         2004 Titanium MazdaSpeed MX5  #403 of 4000
Subie              2006 Steel Gray WRX STi Cobb Stage 2 (Gone but not forgotten)
No name yet    2008 Velocity Yellow Tintcoat Z06 Corvette
No Name yet    2014 Ashen Grey Metallic Camaro 2SS 1LE

“There are only three sports: mountain climbing, bull fighting, and motor racing. All the rest are merely games.”
– Ernest Hemingway
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