96 Civic with 205/40r17?
Turn caps lock the **** off.
Did that? OK, good. Now, get ready to learn how tire sizing works.
Tire sizing comes in the format XXX/YYRZZ. The first number, XXX, is the width of the tire's tread. Example: A 205/50R15 will be wider than a 195/50R15. In practice, there is a little wiggle room here - some tire manufacturers are kind of *********, and fudge these numbers, but most of the time, two tires with a 205 tread will have the same width. The second number, YY, is the height of the sidewall. It is a percentage of the width. Example: A 205/50R15 tire will be taller than a 185/50R15. The third number, ZZ, is simply the size of wheel the tire is made to go on, in inches.
Now, let's talk about what you're trying to do. 185/65R14 is the stock tire size. Your 195/40R16 is already the wrong size - you have a 6% difference in size. Your speedometer is a good 5 MPH off at highway speeds. But let's look at the 205/40R17's. Since you can't find your caps lock key, I'm going to assume you don't actually care about the math, but long story short, they're exactly the same size, height-wise, as stock tires would be. That means your speedometer will be accurate again!
So yes, from a height perspective, they'll work just fine. Unfortunately, we can't actually answer your question, because you haven't bothered telling us the offset. No offset, no answer.
Did that? OK, good. Now, get ready to learn how tire sizing works.
Tire sizing comes in the format XXX/YYRZZ. The first number, XXX, is the width of the tire's tread. Example: A 205/50R15 will be wider than a 195/50R15. In practice, there is a little wiggle room here - some tire manufacturers are kind of *********, and fudge these numbers, but most of the time, two tires with a 205 tread will have the same width. The second number, YY, is the height of the sidewall. It is a percentage of the width. Example: A 205/50R15 tire will be taller than a 185/50R15. The third number, ZZ, is simply the size of wheel the tire is made to go on, in inches.
Now, let's talk about what you're trying to do. 185/65R14 is the stock tire size. Your 195/40R16 is already the wrong size - you have a 6% difference in size. Your speedometer is a good 5 MPH off at highway speeds. But let's look at the 205/40R17's. Since you can't find your caps lock key, I'm going to assume you don't actually care about the math, but long story short, they're exactly the same size, height-wise, as stock tires would be. That means your speedometer will be accurate again!
So yes, from a height perspective, they'll work just fine. Unfortunately, we can't actually answer your question, because you haven't bothered telling us the offset. No offset, no answer.
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Once you get past all of that fun stuff, there's a whole different thing you have to do when changing the size of the wheel itself. For that, it's easiest to just use an online calculator. This is my personal favorite.
Do you understand it, now? I used to sell tires on commission. My paycheck depended on knowing stuff like this better than the back of my hand.
Cool Cool Island Breezes. BOY-EE
iTrader: (1)
Joined: Sep 2006
Posts: 11,953
Likes: 9
From: TRILLINOIS....WAY downtown, jerky.
^he ain't finna read that. This the internet.
Tire sizing. Example size. 205/50/15
-205mm wide.
-50% of 205mm tall (per side wall).
-15" rim.
Compared to 225/50/15
-225mm wide.
-50% of 225mm tall (per sidewall).
-15" rim.
You see now why the 225/50 is taller than the 205/50?
# mathematics #yolo
Tire sizing. Example size. 205/50/15
-205mm wide.
-50% of 205mm tall (per side wall).
-15" rim.
Compared to 225/50/15
-225mm wide.
-50% of 225mm tall (per sidewall).
-15" rim.
You see now why the 225/50 is taller than the 205/50?
# mathematics #yolo
Cool Cool Island Breezes. BOY-EE
iTrader: (1)
Joined: Sep 2006
Posts: 11,953
Likes: 9
From: TRILLINOIS....WAY downtown, jerky.
Kudos to you for reading, my main man. Just trying to word it in a more straightforward way in order to convey e-messages. Not trying to take any credit away from NotARacist.
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