michelin
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3,034 Posts
Handling in one word
The car was designed for a non square set up and the larger rear than the front still give the driver far more feedback than the square set up. If just for shopping or cruising without excessive speed, then square is fine, but any enthusiastic driving requires the 275/305 set up.
This only my opinion of course!
The car was designed for a non square set up and the larger rear than the front still give the driver far more feedback than the square set up. If just for shopping or cruising without excessive speed, then square is fine, but any enthusiastic driving requires the 275/305 set up.
This only my opinion of course!
My plan is to replace with MPSS and keep my Dunlops for track day as there just about legal.
Think I would prefer the 275/305 set up as when I'm on lates the roads are empty when I come home so most of the time have a little play.
What are the profiles of the 275/305 setup cheers
Think I would prefer the 275/305 set up as when I'm on lates the roads are empty when I come home so most of the time have a little play.
What are the profiles of the 275/305 setup cheers
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5,891 Posts
I had the bridgestones on when I bought the car, for 2 weeks! lol and was wondering why I couldnt get the power down in the wet, great in the dry tho.. rear end was very twitchy when pushed
so got the mpss, a lot better in the wet, and with the staggered setup, a lot less twitchy when pushed
Michelin pilot super sport MPSS
275/35ZR20/XL 102 (Y)
10mm tread when new
87598
305/30ZR20/XL 103 (Y)
9mm tread when new
After 6 months good use, over 6000 miles, my mpss still have 6-7mm all round, NO track use YET. :chuckle:
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2,404 Posts
Don't forget that the rim sizes and offset are different front to rear so one "spare" will not fit all ... unless you are just talking about the tyre itself which is not really something you can throw on quickly.
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2,426 Posts
If you go for the square set-up in the end I wouldn't worry too much as a couple of us on the Euro Tour have it and it didn't cause either of us any issues at all over 2700+ miles of hard driving - rain & shine (including a sodden Nordschleife ...).
As John said, it's probably down to personal preference (I will probably try the staggered set-up next time and decide from there ...) but I would think that the square set-up will give slightly less understeer and slightly more oversteer than the staggered set-up and may not be quite so planted at very high speeds (though I'm happy for someone who has tried both to counter that ...) so it may depend on how you want the car to react as much as anything else.
What was the combo and your findings
Im currently on development tyres for testing purposes so until all that's finalised it's not really too relevant.
They're damn impressive for an every day road legal summer / track tyre
I tried pretty much all other than 285/335 (due to requiring a 12J rear) but ended up going fastest and the car having the nicest balance with the 285 front and 295 K1 spec rear
What profile were these as camskill has them in stock. Is the 285/295 combo ok with the diff thingy everyone mentions
The tyre profiles need to have the same rolling radius for back and front tyres.
Would this be ok
Michelin Tyres / Car / Michelin SuperSport Pilot Michelin Super Sport -
285/35 R20 (104Y) XL TL
Michelin Tyres / Car / Michelin SuperSport Pilot Michelin Super Sport -
295/35 R20 (105Y) XL (K1) TL
I have to admit i dont have a clue about this ive seen that k1 is a ferrari spec tyre
In short, they don't. They need to be within a set tolerance and the 285/295 set up is within 0.5% of the stock front/rear differential which is well within tolerance.
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