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I originally had a 245/35/20 and I changed it to a 245/40/20 and now am not 100 percent sure if I like all that sidewall.
Why do you prefer a harsher ride, less tread or more frequent replacement, and being more susceptible to wheel and tire damage? Further if you have already made up your mind you don't like more sidewall why are you asking which to go with lol. Did you change to the exact tire in a different size or change tire types at the same time?
 

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Discussion Starter · #5 ·
Why do you prefer a harsher ride, less tread or more frequent replacement, and being more susceptible to wheel and tire damage? Further if you have already made up your mind you don't like more sidewall why are you asking which to go with lol. Did you change to the exact tire in a different size or change tire types at the same time?
Yes I want a comfortable ride with more tread that’s why I went with the 245/40. First time I have done this and I just wanting peoples opinions to see if I made the right decision
 

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Will you might be right. 👍 we agree the 245/40 will give me a better ride
I can’t decided on what size tires I need for my 20” rims
Suggestions on either a 245/40/20 or a 245/35/20
The 40 profile would be a hair taller, but will not give you more tread just FYI. And the ride the difference between a 35 and a 40 will be minor. As far as fitment, a huge part of that is the rim. You’ll want to check the offset.
Online Wheel and Tyre Fitment Calculator. Offset, Tyre Stretch and Speedo Error | Will They Fit it’s a great tool for comparing your current rims and tires to other sizes.
For reference, I have 235/35/20. 8.5” wide rims. Offset of 35.
Wheel Tire Car Vehicle Sky
 

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The 40 profile would be a hair taller, but will not give you more tread just FYI. And the ride the difference between a 35 and a 40 will be minor. As far as fitment, a huge part of that is the rim. You’ll want to check the offset.
Online Wheel and Tyre Fitment Calculator. Offset, Tyre Stretch and Speedo Error | Will They Fit it’s a great tool for comparing your current rims and tires to other sizes.
For reference, I have 235/35/20. 8.5” wide rims. Offset of 35. View attachment 7638
Close but some tires do have less tread for the different aspect ratios and you need to read the specs. Yes the difference is minor, usually 1/32, but there is a difference with some manufacturers. But all.the differences we are talking about here are minor in the first place.
 

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Close but some tires do have less tread for the different aspect ratios and you need to read the specs. Yes the difference is minor, usually 1/32, but there is a difference with some manufacturers. But all.the differences we are talking about here are minor in the first place.
Correct. I was replying to the earlier comment that the second number in a tire spec can affect the tire tread width. That is incorrect. The first number in a tire spec is regarding tread. The second is the percentage of the sidewall when compared to the tread. Using fitment tool link I provided before will show you exactly the differences between an existing tire rim combination and a proposed tire and rim combination.
 

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Discussion Starter · #11 ·
The 40 profile would be a hair taller, but will not give you more tread just FYI. And the ride the difference between a 35 and a 40 will be minor. As far as fitment, a huge part of that is the rim. You’ll want to check the offset.
Online Wheel and Tyre Fitment Calculator. Offset, Tyre Stretch and Speedo Error | Will They Fit it’s a great tool for comparing your current rims and tires to other sizes.
For reference, I have 235/35/20. 8.5” wide rims. Offset of 35. View attachment 7638
I appreciate the information you just provide me. The tire place put 20” rims with a 9.5 offset because I wanted it flush to the fender as much as possible. The original size tires were 245/35/20 but I changed them to 245/40/20 but after looking at it I don’t like all the sidewall. I think am screwed
 

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Correct. I was replying to the earlier comment that the second number in a tire spec can affect the tire tread width. That is incorrect. The first number in a tire spec is regarding tread. The second is the percentage of the sidewall when compared to the tread. Using fitment tool link I provided before will show you exactly the differences between an existing tire rim combination and a proposed tire and rim combination.
You didn't say tread width just that the 40 would not give you more tread. I always advocate for more width hence my initial suggestion to go with a 255. More with provides more grip and stability. Just clarifying so there isn't any confusion, cheers.
 

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I appreciate the information you just provide me. The tire place put 20” rims with a 9.5 offset because I wanted it flush to the fender as much as possible. The original size tires were 245/35/20 but I changed them to 245/40/20 but after looking at it I don’t like all the sidewall. I think am screwed
When you say 9.5 offset, do you mean inches in width? Just making sure you aren’t getting those mixed up when you enter them into that online calculator.
 

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This shows you am new at this lol. Am going to take it back and get the 245/35/20 if there isn’t much of a difference
Hopefully this helps....

Looking at this site, stock rims on a 2020 Accord Sport have the following stock rim size, tires etc.
235/40R19 8.5" wide x 19" diameter ET50 <-- The "ET" is the offset I was mentioning earlier. The offset is a very important measurement when it comes to fitment.

I bring up the stock rims/tires because you will want to see where the stock rim/tire compare to what you would like to buy so that the speedometer will not be off (or be off by as little as possible). This can also be valuable because there are likely other GenX Accords in your area with stock rims/tires that you can look at so you can validate how far out from stock the tire and rim you are considering will be.

So, I don't know what the exact measurements of your rims are (including offset). So I entered what mine are, just so you can get an idea. I then added the tire size you mentioned you considering (from your last post). You can clearly see the difference. The tool will show you how much further out the rims and tires will sit on your car. Also, how they compare in overall outer diameter (which effects speedometer error). Not only visually, but in exact measurements. Just trying to help you avoid any surprises. Here's the link:

Once you get the offset and width of your existing rims, you can enter that into the tool and get exact measurements. Also, make sure you pay attention to the "stretch" that is displayed as well. By "stretch", I'm referring to the sidewall angle in comparison to the rim. The thinner the tread (235, 245, 255, etc) the more "stretch" you will see. So when you see tires that the sidewalls are angled toward the center of the vehicle, this is showing the tread is more narrow. If the sidewall is angled toward the fender lip (or outside of the vehicle), this is indicating that the tread is wider.

Good luck!!
 
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