Tire size question
08-31-15, 12:15 PM
#1
Driver
Thread Starter
Tire size question
Hey guys I'm in need of new tires asap due to my rear right tire being corded and tire rack is sold out on 255's and 275's till October....the only tire size they have for the Michelin pilot super sports is 265 but my question is do I go with 265/35 or 265/30? I'm not a tire guru so I'm not sure what the differences are. Also since I'm increasing the rear tire size I'm going to put 235's in the front so what specific sizes do you recommend for the front as well? Thanks in advance guys
08-31-15, 12:45 PM
#3
^^^^Though wheels varied by ½" during the ISFs lifetime (2012+ being wider) Stock Tire sizes didn't vary during the models run - 225/40/19 and 255/35/19. And Yes, 235/40/19 and 265/30/19 should be just fine. A bit wider and OD is only .3" difference, so should fit just fine.
Lou
Lou
08-31-15, 01:12 PM
#4
Tech Info Resource
iTrader: (2)
I would seriously consider Bridgestone S-04s. You can get them in the right sizes and you won't be having issues with availability. PSS are great tires, for sure, but the S-04s are well within the same ballpark, and I would change brands before I would change to sizes even less well suited to the OEM suspension geometry.
Full disclosure - I am running PSS in 255/35/19 front and 275/30/19 rear on the 2012+ wheels. I also have a full set of IS F specific RE050As in my garage just in case.
Full disclosure - I am running PSS in 255/35/19 front and 275/30/19 rear on the 2012+ wheels. I also have a full set of IS F specific RE050As in my garage just in case.
Last edited by lobuxracer; 08-31-15 at 01:16 PM.
08-31-15, 01:48 PM
#6
Driver
Thread Starter
I would seriously consider Bridgestone S-04s. You can get them in the right sizes and you won't be having issues with availability. PSS are great tires, for sure, but the S-04s are well within the same ballpark, and I would change brands before I would change to sizes even less well suited to the OEM suspension geometry.
Full disclosure - I am running PSS in 255/35/19 front and 275/30/19 rear on the 2012+ wheels. I also have a full set of IS F specific RE050As in my garage just in case.
Full disclosure - I am running PSS in 255/35/19 front and 275/30/19 rear on the 2012+ wheels. I also have a full set of IS F specific RE050As in my garage just in case.
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08-31-15, 05:10 PM
#8
Crap.. This thread made me realize I screwed up when getting my PSS tires.
I was going to get 235/40 front to go along with 265/35 rears. Both of those are .3 larger in overall diameter from OEM sizes. That would have kept the same .1 difference in diameter between front & rear. I wanted to keep the ratio the same to minimize changes to the suspension geometry & handling.
However, a friend of mine had some low mileage PSS for the front that I got for a very good price. However, I obviously overlooked the fact that they are 235/35. Their overall diameter is .5 less than OEM, but the rears are now .3 larger than OEM. I wonder if I've negatively impacted my handling now that I've increased the difference between the front/rear tire diameters.
How much of a concern is this? I've had the feeling that my understeer has been a bit worse with the new tires, but that could all be all in my head.
-Mike
I was going to get 235/40 front to go along with 265/35 rears. Both of those are .3 larger in overall diameter from OEM sizes. That would have kept the same .1 difference in diameter between front & rear. I wanted to keep the ratio the same to minimize changes to the suspension geometry & handling.
However, a friend of mine had some low mileage PSS for the front that I got for a very good price. However, I obviously overlooked the fact that they are 235/35. Their overall diameter is .5 less than OEM, but the rears are now .3 larger than OEM. I wonder if I've negatively impacted my handling now that I've increased the difference between the front/rear tire diameters.
How much of a concern is this? I've had the feeling that my understeer has been a bit worse with the new tires, but that could all be all in my head.
-Mike
08-31-15, 05:39 PM
#9
Tech Info Resource
iTrader: (2)
09-01-15, 04:09 AM
#10
They are offered in the 245/275 sizes. If you look closely at the thread-pattern , they are nearly identical to PSS. Close to $300 cheaper :-) I have them on my ISF right now, I personally prefer them over the PSS. If you look up the feedback for this tire, everyone whom tried these on our forum seems to love them thus far.
Last edited by Rossi; 09-01-15 at 04:27 AM.
09-01-15, 06:52 AM
#11
Pole Position
Check out the new Goodyears F1 Eagle Assymetric 2.
They are offered in the 245/275 sizes. If you look closely at the thread-pattern , they are nearly identical to PSS. Close to $300 cheaper :-) I have them on my ISF right now, I personally prefer them over the PSS. If you look up the feedback for this tire, everyone whom tried these on our forum seems to love them thus far.
They are offered in the 245/275 sizes. If you look closely at the thread-pattern , they are nearly identical to PSS. Close to $300 cheaper :-) I have them on my ISF right now, I personally prefer them over the PSS. If you look up the feedback for this tire, everyone whom tried these on our forum seems to love them thus far.
09-01-15, 07:45 AM
#12
The grip is enormous. I get noticeably less wheel spin than before. They are run wider than PSS in the same size. My previous tire was PSS 245/275. Wet traction second to none. With PSS, I was all over the place when wet. The curbrash protector is an awesome feature.
If someone to offer me a free set of Michelins or Goodyears, I'll take Goodyears every day of the week and the spite of the cheaper price. They really feel solid, I remember when I installed the PSS after the PS2 set, they felt weird at first before they became great, Goodyears felt awesome from the very first mile.
If someone to offer me a free set of Michelins or Goodyears, I'll take Goodyears every day of the week and the spite of the cheaper price. They really feel solid, I remember when I installed the PSS after the PS2 set, they felt weird at first before they became great, Goodyears felt awesome from the very first mile.
09-01-15, 08:01 PM
#13
Driver
Thread Starter
I say go with tire rack and then have some place in town go install them for you. The local good guys quoted me just below $2,000 for the change but I decided to order the tires off tire rack for $1100 and have the good guys install them and get an alignment and whatever else I need for $150. So moral of the story is I saved about $600 bucks ordering them myself
09-03-15, 09:20 PM
#14
The grip is enormous. I get noticeably less wheel spin than before. They are run wider than PSS in the same size. My previous tire was PSS 245/275. Wet traction second to none. With PSS, I was all over the place when wet. The curbrash protector is an awesome feature.
If someone to offer me a free set of Michelins or Goodyears, I'll take Goodyears every day of the week and the spite of the cheaper price. They really feel solid, I remember when I installed the PSS after the PS2 set, they felt weird at first before they became great, Goodyears felt awesome from the very first mile.
If someone to offer me a free set of Michelins or Goodyears, I'll take Goodyears every day of the week and the spite of the cheaper price. They really feel solid, I remember when I installed the PSS after the PS2 set, they felt weird at first before they became great, Goodyears felt awesome from the very first mile.
09-04-15, 05:01 AM
#15
Are you using a tire with the same load rating as an OEM rear in that size? Looks like a (96Y)XL is recommended for a rear in that size, which are currently out of stock as others have mentioned. However, there's a (92Y) available in the same size. Would that be suitable for the front of this car? The OEM 225 fronts have a (93Y) rating & I was wondering how important it is to have something the same or higher. I assume the (92Y) will have a slightly softer sidewall compared to a (93Y) OEM tire, but it's also .1 less in diameter, so perhaps the difference is negligible as far as road feel. Though, I'm mostly concerned with the safety/durability factor.. Thanks.
-Mike