Correct tire sizes?
12/7/19, 07:52 PM
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Correct tire sizes?
I have a 2011 gt lowered 1.25 in front and 1.5 in rear, anyway I'm planning on running 20×8.5 in the front and 20×10 in rear looking for tire size options. I'm thinking on 255×35 in front and 275×35 in rear is there any unforeseen things I'm missing and can I run larger tires in front & rear?
12/9/19, 09:07 AM
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I think I answered this in one of your other posts (or maybe it was someone else) but I'll recap:
1) check the diameter of your current or original tires; if they clear then other tires the same diameter or smaller will clear for sure and if you check your current tires you can get an idea how much additional clearance is available
2) learn how to read/understand the tire size codes and how they affect the overall size of the tires . . . for example the "35" when you say 255 x 35 is not the sidewall height, it is the aspect ratio (sidewall height / tread width) so that's why it is written as 255/35 not 255 x 35 (pretty sure Tire Rack has good explanation of this)
3) learn how to read the specs that are shown in Tire Rack ; they give you all the information that you need to compare tire sizes based on the manufacturers actual recommendations for the tires that you are looking at (except what will clear on your car, see #1 above, nobody else knows that because they don't have your car)
4) match the tires to the wheels -- Tire Rack has that information also (the recommended wheel width for the tires that you are looking at)
5) #3 in combination with #1 will give you the answer to the "can I run bigger tires" question . . . plus you don't want rear tire diameter that is more than about 3-5% different from the originals unless you want to recallibrate your speedometer or you don't care if it is wrong . . . and yes you "can" put on bigger tires than the manufacturer recommends for the wheel, but it is not a good idea and that's why the engineers figure out the correct/recommended sizes
Since nobody else probably has the same exact combination of everything that you are considering, nobody can answer it for your exactly/specifically, they can only generalize and then you will have to make the judgment based on the things outlined above
good luck, if you run into any specific questions about the info, feel free to ask
1) check the diameter of your current or original tires; if they clear then other tires the same diameter or smaller will clear for sure and if you check your current tires you can get an idea how much additional clearance is available
2) learn how to read/understand the tire size codes and how they affect the overall size of the tires . . . for example the "35" when you say 255 x 35 is not the sidewall height, it is the aspect ratio (sidewall height / tread width) so that's why it is written as 255/35 not 255 x 35 (pretty sure Tire Rack has good explanation of this)
3) learn how to read the specs that are shown in Tire Rack ; they give you all the information that you need to compare tire sizes based on the manufacturers actual recommendations for the tires that you are looking at (except what will clear on your car, see #1 above, nobody else knows that because they don't have your car)
4) match the tires to the wheels -- Tire Rack has that information also (the recommended wheel width for the tires that you are looking at)
5) #3 in combination with #1 will give you the answer to the "can I run bigger tires" question . . . plus you don't want rear tire diameter that is more than about 3-5% different from the originals unless you want to recallibrate your speedometer or you don't care if it is wrong . . . and yes you "can" put on bigger tires than the manufacturer recommends for the wheel, but it is not a good idea and that's why the engineers figure out the correct/recommended sizes
Since nobody else probably has the same exact combination of everything that you are considering, nobody can answer it for your exactly/specifically, they can only generalize and then you will have to make the judgment based on the things outlined above
good luck, if you run into any specific questions about the info, feel free to ask
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