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Are Slightly Larger Tires an Option?

brantse

Member
Supporting Member
May 18, 2015
656
3,364
Somerset, PA
So, I'm looking for winter tires and have come across some very gently used tires that are a slightly larger OD (235/50-19) than the the standard 245/45-19. Standard tire OD is 27.7", whereas these would be 28.3" or about a 2% difference in diameter and speedo readings. Does anyone know if these will work fine, or will I run the risk of the tire rubbing somewhere?
 

scottm

Legacy account
Jun 13, 2014
3,070
2,374
Canada
I'd say it's ill advised to try anything that is even slightly larger than stock OD on the rubber..

Even correctly dimensioned tires of some brands mounted on stock rims can rub front fender when wheels are turned hard, due to tread design (width of contact patch).

Do you want taller aspect for a reason? Pot-hole roads..

On some cars it's possible to go down a rim size, to 18" from 19" and then pick a taller aspect tire. But on Model S there is no chance of doing this because of front lower suspension arms will contact the inside of that rim, there is very little clearance between that and stock 19" rims.
 
So, I'm looking for winter tires and have come across some very gently used tires that are a slightly larger OD (235/50-19) than the the standard 245/45-19. Standard tire OD is 27.7", whereas these would be 28.3" or about a 2% difference in diameter and speedo readings. Does anyone know if these will work fine, or will I run the risk of the tire rubbing somewhere?
Curious.. Did you try this size and did it work fine? I'm guessing not? Looks like these would require about .6 inch more clearance in the front which seems like it wouldn't work due to clearance.
 
Last edited:

NoMoGas

Active Member
Supporting Member
So, I'm looking for winter tires and have come across some very gently used tires that are a slightly larger OD (235/50-19) than the the standard 245/45-19. Standard tire OD is 27.7", whereas these would be 28.3" or about a 2% difference in diameter and speedo readings. Does anyone know if these will work fine, or will I run the risk of the tire rubbing somewhere?

Im running 275/40 in rear
 

NoMoGas

Active Member
Supporting Member
IMG_0689.JPG
I went with the largest and widest I could get. These are nearly 11" wide on a 10.5" after market staggered setup wheel.
 

NoMoGas

Active Member
Supporting Member
Your car looks fantastic! Can you please take a shot of your car from a very low vantage point (almost at ground level) from the back showing how wide the tires are ? I'd love to see that.

You cant really appreciate how wide these are from this pic I'll see if I can get a better one when theres more light
IMG_1622.JPG
 
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