The Tire I want does not come in OE Size.......

[Cut-Throat]

So, how much can I vary the size from a 235/45/19 Tire ? This would be for a 2014 R Spec. The Tire Size for the 2014 3.8 is 235/50/18 and the Tire I want is available in this Size.

Would I have to buy Different Wheels or could I vary the Tire a Bit? What are the downsides to putting 18 inch wheels on the R Spec?

 

[homeofstone]

18" wheels may not fit on an r-spec due to size of the brakes. the r-spec has larger brakes. Have you checked tirerack.com for all the brands of tires available in the correct size for the R-spec? You may find another tire you like.

 

[Cut-Throat]

18" wheels may not fit on an r-spec due to size of the brakes. the r-spec has larger brakes. Have you checked tirerack.com for all the brands of tires available in the correct size for the R-spec? You may find another tire you like.

Tire Rack has 4 tires for the R-Spec and all of them are Crap in Snow!

I need a tire like the Conti DWS Extreme Contact which I now have on my 2011. Pirelli Makes another Great All Season

 

[homeofstone]

Maybe the Conti DWS in 245-40-19. Its very close in revs per mile ( only 7 revs different) and I think it will work fine. Take a look.

 

[Cut-Throat]

Maybe the Conti DWS in 245-40-19. Its very close in revs per mile ( only 7 revs different) and I think it will work fine. Take a look.

That is what I was asking about in my OP. I have looked at this size and was wondering how it might do on a R-Spec. Also the Pirelli Cinturato P7 All Season Plus is a great tire in the snow with Great Ride Noise marks as well!

 

[Crusty Old Shellback]

245 is the size that came on my '12 R Spec. It's the size of the factory summer optioned tires. The all season factory tires are 235. So yes, a 245 will fit the stock rims and the car. When I bought new tires, I went from the original Bridgestone SO4 pole position 245 summer tires to a 245 Conti DW summer tire and really like them.

 

[Cut-Throat]

Maybe the Conti DWS in 245-40-19. Its very close in revs per mile ( only 7 revs different) and I think it will work fine. Take a look.

Can you tell me how you calculated that it would be 7 revs Different than the 235/45/19 ? Also which way would this affect my Speedometer/Odometer?

 

[scottdk]

Play around with this calculator and check out some different size tires.

http://www.miata.net/garage/tirecalc.html

 

[Crusty Old Shellback]

Here's some rough caliculations for you converting from the meteric ratio system to the old inch system that most of us understand.

245/40/19 tire is 9.65" wide and 26.72" tall. so basically a 27 X 9.5 19
235/45/19 is 9.25" wide and 28.2" tall. a 28 X 9 19.

The sidewall of a 245 is 3.86" while the 235 is 4.16"

As for difference in the speedo, you probably won't notice it since Hyundai puts both size tires on the R Spec from the factory. Your talking about a 1" less distance traveled per revolution of the tire.

 

[Cut-Throat]

Maybe the Conti DWS in 245-40-19. Its very close in revs per mile ( only 7 revs different) and I think it will work fine. Take a look.

I just ran thementioned calculator and came up with a diference of 17

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[EXBMWGUY]

http://advantiwheel.com/current-wheels/b2-denaro-black/

This is the wheel I am using in 18x8 on a 2012 R-Spec. The installer recommended they use 3/8 spacers in front, because although they cleared the brakes, hard cornering might have caused caliper contact.

Advanti is a sub-brand of Koenig. I like these wheels, which are also available in silver. Bought them from NTB, who I have had very good success with. Discount Tire, who I also like, stumbled a bit with sourcing something that would fit. NTB ordered these from Tire Rack's (wholesale division). They are cheap (under $180 as I remember, and very light, which is always a good thing with wheels. I'm sure they are Chinese gravity-cast, but there are plenty of good wheels in this category, and if there were quality problems, Tire Rack would not sell them.

 

[Crusty Old Shellback]

That's 17 revolutions per mile. 2.2% which means at a indicated 100 MPH, you would really only be doing 97.8 MPH if you go with the 245/40 19.

Are you really going to notice that?

 

[brfatal]

Can you tell me how you calculated that it would be 7 revs Different than the 235/45/19 ? Also which way would this affect my Speedometer/Odometer?

RPM statistics are readily found on the internet. It shouldn't be that much off.

 

[Cut-Throat]

That's 17 revolutions per mile. 2.2% which means at a indicated 100 MPH, you would really only be doing 97.8 MPH if you go with the 245/40 19.

Are you really going to notice that?

I probably wouldn't notice it, but I'm trying to get the closest size that I can. (Nothing wrong with that, as far as I can tell).

I have played around with the Calculator and the size of 245/45/19 seems a lot closer. Only 9 revs/Mile and only 1.3% Difference.

Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
235/45-19 4.2in 13.7in 27.3in 85.8in 738 0.0%
245/45-19 4.3in 13.8in 27.7in 87.0in 729 1.3%

 

[scottdk]

FYI -

my OEM 235 50 18 was 4 mph off actual GPS speed vs needle speedo.

my R Spec 245 45 19 is only 1 mph off actual GPS speed vs needle speedo.

I'm glad my "upgrade" also improved my speedo accuracy

 

[Cut-Throat]

FYI -

my OEM 235 50 18 was 4 mph off actual GPS speed vs needle speedo.

my R Spec 245 45 19 is only 1 mph off actual GPS speed vs needle speedo.

I'm glad my "upgrade" also improved my speedo accuracy

OK, Good to know.... You obviously went through these calculations as well and arrived at the same size that I did. What tires are you using in the 245/45/19 ?

When did you get the R Spec (Time to update you Signature Line) ?

 

[scottdk]

OK, Good to know.... You obviously went through these calculations as well and arrived at the same size that I did. What tires are you using in the 245/45/19 ?

When did you get the R Spec (Time to update you Signature Line) ?

I don't have the actual R Spec trim level, just the wheels/tires and soon to be suspension. (All my vehicle info is in my signature below)

I'm using the Conti DW's which are a great tire......buuuuttttttttt....if I were to buy new tires soon I'd get the Michelin Pilot super sports. These are also a summer tires just as the DW's are.

These 2 tires in the first pic shown below are a great option for you for a 19" tire. The 2nd tire is the DWS as you mentioned. Did you see how many miles are reported for reviews on the DWS - Holy Moses

Otherwise - the next pic is for less performance oriented tires: You can probably pass on the Bridgestones since they don't rate well in snow etc.

 

[Cut-Throat]

I don't have the actual R Spec trim level, just the wheels/tires and soon to be suspension. (All my vehicle info is in my signature below)

I'm using the Conti DW's which are a great tire......buuuuttttttttt....if I were to by new tires soon I'd get the Michelin Pilot super sports. These are also a summer tires just as the DW's are.

These 2 tires in the first pic shown below are a great option for you for a 19" tire. The 2nd tire is the DWS as you mentioned. Did you see how many miles are reported for reviews on the DWS - Holy Moses

Otherwise - the next pic is for less performance oriented tires: You can probably pass on the Bridgestones since they don't rate well in snow etc.

Yup, I have the DWS Extreme Contact Contis on my 2011 Genesis. I will get a 2014 R Spec soon (Less than 1 month) and Will get the Pirellis that you listed on your Chart.

The Contis worked perfect this past winter! No trouble at all with the snow and ice. BTW - I took the Bridgestones off ... They were terrible in snow. No traction at all!

 

[homeofstone]

Can you tell me how you calculated that it would be 7 revs Different than the 235/45/19 ? Also which way would this affect my Speedometer/Odometer?

per tire rack from mfg specifications. 235-45-19 contiprocontact 761 revs per mile. 245-40-19 conti DWS 778 revs per mile. my 7 was a typo. But 17 is no big thing.

 

[Cut-Throat]

per tire rack from mfg specifications. 235-45-19 contiprocontact 761 revs per mile. 245-40-19 conti DWS 778 revs per mile. my 7 was a typo. But 17 is no big thing.

Agree, but the 245/45/19 is closer yet to the OEM Size. Might as well get the closest.