[tsubus]

That does look great, and you confirm no side effects? How does it feel when driving, any different?

 

[RYUK]

Nope

I posted in the Spacers and what did you do thread when I installed them.
Installed at the end of April so I have a little over 2 weeks of driving on them.

 

[tsubus]

It looks absolutely great. I'll add those to my wish list.

 

[tap]

I am surprised you can go that far out, but I don't know every inch of this car inside out yet.

I gave 10mm as a safe guideline limit.

I bump out just about all my cars. Sometimes, if I order aftermarket wheels, I'll reduce offset that way (bumping things out). Otherwise, I dive in and add spacers behind stock wheels or wheels with stock offsets.

For my AWD Audi, I just went 10mm all around (equality for all the drive wheels) , and it's absolutely amazing how .04 of an inch -- just 10mm -- makes such a difference.

As for tire sizes: I am NOT a fan or ever going to endorse more total meat on a tire if the aspect ratio doesn't correct it. I don't care if it fits, but a 235/35 19 should never turn into a 245/35 19, for example. That's more meat everywhere, including the sidewall, which is a handling no-no. Even in a Plus One conversion, which is adding meat correctly, the sidewall grows slighty -- ever so slightly -- but is stiffer as a ratio of the total rubber and diameter.

So far, in this thread, my belief is that the thread starter should pick up some new stock Pirellis and bump the wheels out at least 10mm. MPSS are better, but most people will never be able to find out, and while they will last longer, the return on the investment for the extra life barely exists. And if it's a bigger tire, because stock sizes don't exist, and it's NOT a plus one (it ain't), then the thread starter should opt for stock Pirellis.

.

I appreciate your input, get what you are saying, and tend to agree with you. However, the Pirelli's lasted a little over 8K miles and that's with relatively easy driving....no bueno. :laugh: It sucks that they are the only tire available in the original size. I'm not sure if bumping it up one size will make a noticeable difference in the cars performance for me (+0.2 inch sidewall increase). I will be doing 1 track day next month but will use the Pirelli's for it. Other then that I might do a couple of spirited drives a year at events like Fiat on the Dragon.

Aesthetics is important to me and the car does look better with the wheels pushed out a bit with spacers. But will that also have a negative impact on the optimal handling characteristics of the car?

 

[Philster]

For a sports car (heck, all cars) it's a hard and fast rule to not increase the sidewall height without adjusting the aspect ratio.

Do people do it? Can you? What percentage of response or handling is lost/altered/improved? Yes, Yes... and that last part is the unknown.

.

 

[Racer Z]

With 8,300 mile on the car and the Pirelli?s close to the wear indicators it?s about time to get new tires (was hoping to get more miles out of them). I?m still torn between putting on 225/40 R18 and 255/35 R19 on the original wheels or play it safe and get 215/40 R18 and 245/35 R19.

With the 225/255: I?m looking at the BF Goodrich G-Force Comp-2 A/S ($540), the Michelin Pilot Sport A/S 3+ ($685), or the Pirelli P Zero All Season Plus ($700), balanced and mounted. My son works for NTB so I can get them cheaper than Tire Rack. All 3 have very good ratings on Tire Rack, with the Pirelli?s just inching out the Michelin?s. I?m leaning towards the Pirelli?s.

With the 215/245 the only real choice is the Michelin Pilot Sport A/S 3+ ($680).

I?ve probably read all the treads on this and still not sure which way to go.

I?d like to get some feedback on what size and type tires I should get.

Back to the original question.

I have these tires on my 4C. Stock wheels. 225/40x18 & 245/35x19 Michelin Pilot Super Sport. About 5000 miles now. They fit well and look good. I don't have spacers. My 4C is my daily driver. Although it doesn't snow here and we usually have a mild winter anyway, this winter was very cold and wet compared to our norm. The tires worked great, even in the cold rain. In the canyons they feel great.

A track tire they are not. If I was to seriously track my car, I'd get a second set of wheels and serious track rubber.

Going this route with tires on stock wheels is fine. I did my homework. The rim widths are in the acceptable range of widths. They actually feel better than the stock P-Zero.

 

[RYUK]

In regards to this question, I was trying to find the exact Pirelli that came on mine.
The description is
Pirelli P Zero AR Three-Season Tires
205/40R18 Front and 235/35R19 Rear
which Tire Rack Tires does that match up to?
It seems like the only one they list that has this tire size combo is a the Pirelli Pzero Max performance tire. :huh:

 

[tap]

Back to the original question.

I have these tires on my 4C. Stock wheels. 225/40x18 & 245/35x19 Michelin Pilot Super Sport. About 5000 miles now. They fit well and look good. I don't have spacers. My 4C is my daily driver. Although it doesn't snow here and we usually have a mild winter anyway, this winter was very cold and wet compared to our norm. The tires worked great, even in the cold rain. In the canyons they feel great.

A track tire they are not. If I was to seriously track my car, I'd get a second set of wheels and serious track rubber.

Going this route with tires on stock wheels is fine. I did my homework. The rim widths are in the acceptable range of widths. They actually feel better than the stock P-Zero.

Thanks for your input. Why 245 instead of 255?

 

[John4C]

In regards to this question, I was trying to find the exact Pirelli that came on mine.
The description is
Pirelli P Zero AR Three-Season Tires
205/40R18 Front and 235/35R19 Rear
which Tire Rack Tires does that match up to?
It seems like the only one they list that has this tire size combo is a the Pirelli Pzero Max performance tire. :huh:

Tire Rack should have two models in the stock sizes. There's the AR Alfa Romeo and the ARR Alfa Romeo. The extra R is the racing tire that was an option. I have the 3 season (AR Alfa Romeo) ones on my LE as well.

 

[tap]

In regards to this question, I was trying to find the exact Pirelli that came on mine.
The description is
Pirelli P Zero AR Three-Season Tires
205/40R18 Front and 235/35R19 Rear
which Tire Rack Tires does that match up to?
It seems like the only one they list that has this tire size combo is a the Pirelli Pzero Max performance tire. :huh:

TireRack has that size in AR an ARR

 

[4Canada]

In regards to this question, I was trying to find the exact Pirelli that came on mine.
The description is
Pirelli P Zero AR Three-Season Tires
205/40R18 Front and 235/35R19 Rear
which Tire Rack Tires does that match up to?
It seems like the only one they list that has this tire size combo is a the Pirelli Pzero Max performance tire. :huh:

https://www.tirerack.com/tires/Tire...ntSortCode=53445&rearWidth=235/&rearRatio=35&rearDiameter=19&rearSortCode=57260

Should give you the two Alfa tire options (PZero AR, and ARR)

 

[Philster]

I give: What is ARR ?

.

 

[heelntoe]

I give: What is ARR ?

See John's post 3 up from yours. AR (R)acing. A stickier compound version of the AR. They look identical. They don't perform the same, however. I've had them since I got my 4C, on the second set now. Not a bad compromise tire, but they're no RE71R. Better dry weather track tire than the MPSS in my opinion.

 

[John4C]

I give: What is ARR ?

.

Alfa Romeo Racing - it's a manufacturer tire so that's what Alfa wanted to call it.

 

[Philster]

Yep... was slightly unsure of the last R is the designation.

.

 

[DrDuke]

Honestly just buy the Michelin Pilot Super Sport. Nobody with the MPSS thinks about going back to the pirellis. Most ppl over here had the ARR fitted and its more part of the problem than the solution.
If you dlike to use semis then go for the michelin sport cup 2. But you need other rims to fit them (17/18").

 

[(ZO)]

Thinking of buying Nitto NT05 semi slick 225/40/18 front and 275/30/19 rear not expensive and good review.

 

[Racer Z]

Thanks for your input. Why 245 instead of 255?

Stock was 235. I only went up one size to get a better tire selection. So, both my front and my rear went up one size.

Regardless of what you end up choosing, just make sure the load rating is equal to, or greater than, the OEM load rating.

The MPSS is is a larger tire than the P-Zero, for the same size markings. If the MPSS was available in our stock sizes, it would be physically larger than the OEM P-Zero.

This thread has a lot of info on tires, including the MPSS.
http://4c-forums.com/14-tires-wheels-suspension/32873-4c-tire-reviews.html

 

[tap]

Stock was 235. I only went up one size to get a better tire selection. So, both my front and my rear went up one size.

Regardless of what you end up choosing, just make sure the load rating is equal to, or greater than, the OEM load rating.

The MPSS is is a larger tire than the P-Zero, for the same size markings. If the MPSS was available in our stock sizes, it would be physically larger than the OEM P-Zero.

This thread has a lot of info on tires, including the MPSS.
http://4c-forums.com/14-tires-wheels-suspension/32873-4c-tire-reviews.html

I thought you said you had 225s up front, so you have 215 and 245.

 

[Racer Z]

Stock was 235. I only went up one size to get a better tire selection. So, both my front and my rear went up one size.

Regardless of what you end up choosing, just make sure the load rating is equal to, or greater than, the OEM load rating.

The MPSS is is a larger tire than the P-Zero, for the same size markings. If the MPSS was available in our stock sizes, it would be physically larger than the OEM P-Zero.

This thread has a lot of info on tires, including the MPSS.
http://4c-forums.com/14-tires-wheels-suspension/32873-4c-tire-reviews.html

I thought you said you had 225s up front, so you have 215 and 245.

Yes, 215 & 245, my mistake, sorry about that.

There's plenty of room to go bigger if you want. I'd suggest keeping the size difference proportional as compared to stock. The computerized nannies might get weird if the wheels aren't rotating within a certain range. It calculates wheel rotation to determine if the car is out of control or something.