Considering different size tires... (1 Viewer)

[Lcerva]

Hey all,

I know what your thinking. Another tire thread. But, I really am having trouble finding exactly the right information I need. Perhaps, I’m not looking in the right place. Anyhow. I’ve decided on BFG ko2s. And, I’ve also narrowed it down to one of these sizes: 275/70/18 or 285/65/18. I know these sizes will fit without rub from my research. My question is what are the spec differences on these two sizes? What am I losing or gaining? Gas mileage, on road manners, change in ride? What do you recommend out of these two tires? I will mostly be on pavement. But, I want an aggressive look and the go anywhere feel. Will one size be better suited to me?

Thanks for your time
Lorenzo

 

[jLB]

285/65R18 is ~32.59" tall and ~11.22" wide
275/70R18 is ~33.16" tall and ~10.83" wide

I've run both sizes, and really don't notice that much of a difference between the two.

Most recently, I went with the 275/70R18, because it was ~$35 per tire cheaper than the same tire (KO2) in 285/65R18, and the 275/70R18 seemed to be a regularly stocked item, where the 285/65R18 needed to be ordered from the warehouse.

 

[rvk]

285/65R18 is ~32.59" tall and ~11.22" wide
275/70R18 is ~33.16" tall and ~10.83" wide

I've run both sizes, and really don't notice that much of a difference between the two.

Most recently, I went with the 275/70R18, because it was ~$35 per tire cheaper than the same tire (KO2) in 285/65R18, and the 275/70R18 seemed to be a regularly stocked item, where the 285/65R18 needed to be ordered from the warehouse.

Can you post a pic of your 275/70 KO2? Curious how well it fills the wheel well. Thanks

 

[Lcerva]

I was more concerned with fuel economy and handling. It has already been proven that both of these sizes fit wheel well without rubbing even at full articulation.

 

[rvk]

I was more concerned with fuel economy and handling. It has already been proven that both of these sizes fit wheel well without rubbing even at full articulation.

I was curious about how "rugged" it looked - as you also mentioned - though its still stock size. I feel like stock 275/70 Michelin LTX look small, compared to the wheel well.

 

[Lcerva]

I was curious about how "rugged" it looked - as you also mentioned - though its still stock size. I feel like stock 275/70 Michelin LTX look small, compared to the wheel well.

Below are the two different sizes. Posted on a thread in Facebook. The black one is 275/70/18. The blue one is 285/65/18.

So, back to my question of ride quality, handling, fuel economy, etc? Can anyone confirm the differences?

 

[birch hill]

275/70r18. Handling is like stock, very slight tread noise at interstate speeds. Avg 14.5 mpg @ 75 mph on recent trip to beach with a cartop carrier and 8 people in car. Around town I avg 12.5mpg

 

[jLB]

I was more concerned with fuel economy and handling. It has already been proven that both of these sizes fit wheel well without rubbing even at full articulation.

Going from a P-metric tire to a taller/heavier (load range E) LT tire, it will ride a bit rougher, it will affect braking, you may notice more of a "tread squirm" feel, and you will take a bit of a hit on MPG.

Michelin Defender LTX M/S P275/60R18 = 37.02lb per tire
BF Goodrich KO2 LT285/65R18 = 57.19lb per tire
BF Goodrich KO2 LT275/70R18 = 58.73lb per tire

I was curious about how "rugged" it looked - as you also mentioned - though its still stock size. I feel like stock 275/70 Michelin LTX look small, compared to the wheel well.

Keep in mind, you're thinking of the stock 275/70R16, the OP is asking about a 275/70R18.

 

[Lcerva]

Going from a P-metric tire to a taller/heavier (load range E) LT tire, it will ride a bit rougher, it will affect braking, you may notice more of a "tread squirm" feel, and you will take a bit of a hit on MPG.

Michelin Defender LTX M/S P275/60R18 = 37.02lb per tire
BF Goodrich KO2 LT285/65R18 = 57.19lb per tire
BF Goodrich KO2 LT275/70R18 = 58.73lb per tire




Keep in mind, you're thinking of the stock 275/70R16, the OP is asking about a 275/70R18.

Thanks for the response. More to the point of my question. But I am wondering what the difference is between the two sizes I listed. Is it very minor in difference? How will it affect braking? And, by tread squirm do you mean vehicle will move over the street with a slight crawl/wobbly movement?

 

[Lcerva]

275/70r18. Handling is like stock, very slight tread noise at interstate speeds. Avg 14.5 mpg @ 75 mph on recent trip to beach with a cartop carrier and 8 people in car. Around town I avg 12.5mpg

View attachment 2118346

Perfect thank you!

 

[jLB]

Thanks for the response. More to the point of my question. But I am wondering what the difference is between the two sizes I listed. Is it very minor in difference? How will it affect braking? And, by tread squirm do you mean vehicle will move over the street with a slight crawl/wobbly movement?

There is a noticeable difference between the P-metric and LT tires, but as I stated above, the difference between the 2 LT sizes that you’re looking at, is trivial in my experience.

No, there is a bit of a “feel” difference due to tread depth, and the relatively large unsupported tread blocks. You may feel some flex or movement between the tread surface and the tire carcass in turns.

 

[sum1]

Hey all,

I know what your thinking. Another tire thread. But, I really am having trouble finding exactly the right information I need. Perhaps, I’m not looking in the right place. Anyhow. I’ve decided on BFG ko2s. And, I’ve also narrowed it down to one of these sizes: 275/70/18 or 285/65/18. I know these sizes will fit without rub from my research. My question is what are the spec differences on these two sizes? What am I losing or gaining? Gas mileage, on road manners, change in ride? What do you recommend out of these two tires? I will mostly be on pavement. But, I want an aggressive look and the go anywhere feel. Will one size be better suited to me?

Thanks for your time
Lorenzo

what did you decide to go with. I am wondering about the same thing too. I'm looking at either 285/60R18 or 275/65R18 Yokohama Geolandar AT G015's. And if there will be a noticable difference between the two. I am currently running ROADONE Cavalry MT 285/70R18's.

 

[99Cruiser]

I have the G015 285/60/18 on my 200. I got them since they were a good price, $125 per tire after rebate. The 275 will be 32" vs 31.4" for the 285. So the 275 is taller but .4" narrower. It is a good quiet tire. The 285/60/18 is p metric only and the 275/65/18 is available both p metric and LT. I would probably go with the 275 in p metric. I went with the 285/60/18 since it is the stock size for a 200.

 

[Lcerva]

what did you decide to go with. I am wondering about the same thing too. I'm looking at either 285/60R18 or 275/65R18 Yokohama Geolandar AT G015's. And if there will be a noticable difference between the two. I am currently running ROADONE Cavalry MT 285/70R18's.

I ordered 275/70/18 ko2 BFG tires. Should be coming in today or tomorrow. Will update when they’re on. How do you like your roadones?

 

[nitteo]

275/70/18 is more common and is cheaper to find. its the oem size for dodge ram rebel and rubicons i believe.

 

[sum1]

I ordered 275/70/18 ko2 BFG tires. Should be coming in today or tomorrow. Will update when they’re on. How do you like your roadones?

snow and ice, they are not so good. On dry road and gravel they are good, I haven't had them long enough to try anything else. I would imagine they would do great off road, rock and mud. I will be looking to get a less aggressive tire for my needs.

 

[sum1]

I have the G015 285/60/18 on my 200. I got them since they were a good price, $125 per tire after rebate. The 275 will be 32" vs 31.4" for the 285. So the 275 is taller but .4" narrower. It is a good quiet tire. The 285/60/18 is p metric only and the 275/65/18 is available both p metric and LT. I would probably go with the 275 in p metric. I went with the 285/60/18 since it is the stock size for a 200.

thanks for the advice. Did you have a Toyota dealership install them or other?

 

[sum1]

Never mind, I found a good thread for my question already asked.

 

[blatant]

Fuel economy and Landcruiser... mutually exclusive. Anyone who buys one of these things should not be worried about fuel economy. If you are indeed concerned about economy/mileage, you should get a civic.

 

[krice118]

To add to this - I recently went form 285/75 R16 to 275/70 R18 and I love the new tires much more. Turning radius is sharper (shorter) with the 275s.