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Discussion Starter · #1 ·
Hi
I want to change the fronts only to 215/40 18 from 205/40 18
to give more clearance for the front spoilier

Pros and cons?


Has anyone done this and what is better 4s or 5?

many thanks
All the best
 

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‘15 Spider: MP/R; ‘16 Fiat 500X Pop; 1.4t/M6; Hers ‘13 500 Abarth; ‘95 Wrangler.
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Per John4C’s advice, I quickly changed to 225/40 and 255/35 respectively. Clearance is better, the ride is better and traction is much better.
I can’t speak on the Michelins though, I like Michelin but got a good price on continental extreme sports and couldn’t be happier.
 

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2015 4C Launch Edition
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215 front is good but 225s on a 7" rim (our stock size) are oversized and not recommended. Tire choice is mostly what sizes are available currently. I have Michelin PSS in 215/245 combo which is really great but they discontinued the 215 and have yet to come out with a replacement in that size. The Continentlals as mentioned above are a very good choice also and may be my next choice unless Michelin comes out with the correct combo size.
 

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215 front is good but 225s on a 7" rim (our stock size) are oversized and not recommended. Tire choice is mostly what sizes are available currently. I have Michelin PSS in 215/245 combo which is really great but they discontinued the 215 and have yet to come out with a replacement in that size. The Continentlals as mentioned above are a very good choice also and may be my next choice unless Michelin comes out with the correct combo size.
I did multiple trackdays and 18,000 miles on:
225s and 255s. One size smaller would have been better probably, the car was MUCH better to drive but the added sidewall flex was less ideal.

However, the PS5 is narrower than the PS4S

If you're doing PS5, go 225/255
If PS4S, they're rounder and wider, go 215/245
 

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Photos of the tyre fitments as described, since I've been through a few tyres and fitments...

You'll see the 255 R19 PS5 almost look closer to the OEMs than they do the 255 R19 PS4S

1. Pirelli 235/35 R19 - No Spacers - FULL OEM
Tire Wheel Land vehicle Car Vehicle



2. Pirelli 235/35 R19 - Spacers
Tire Wheel Car Vehicle Land vehicle


3. Michelin PS4S 255/35 R19 - Spacers
Tire Automotive parking light Wheel Car Vehicle



4. Michelin PS5 255/35 R19 - Spacers
Wheel Tire Land vehicle Car Vehicle



5. Michelin PSS 265/35 R19 - Bspk Forged wheels
Tire Wheel Car Vehicle Automotive tire
 

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Wow that PS5 is really narrow
mmm, wondering if they are as small compared to the oem Pirelli's and the weigth of them.....
I'm staying Pirelli's for the less weigth for my new wheels.... Guess i'll have a look for the PS5's weigth and narrowness....
(y)
 

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Discussion Starter · #10 ·
Photos of the tyre fitments as described, since I've been through a few tyres and fitments...

You'll see the 255 R19 PS5 almost look closer to the OEMs than they do the 255 R19 PS4S

1. Pirelli 235/35 R19 - No Spacers - FULL OEM
View attachment 140907


2. Pirelli 235/35 R19 - Spacers
View attachment 140906

3. Michelin PS4S 255/35 R19 - Spacers
View attachment 140908


4. Michelin PS5 255/35 R19 - Spacers
View attachment 140909


5. Michelin PSS 265/35 R19 - Bspk Forged wheels
View attachment 140910
Wow you tried them all😊
 

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Hahaha basically, yes!

Just not the Cup 2, but not sure that's great for London
Cup 2 are basically a track tire. A few hear cycles and they are dead for track also. And forget wet road performance. It is important to realistically decide how you will use your car.....if mostly or 100% street driven, ultra summer performance tires are a poor choice.
 
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