275/60/20 on oem 20'' wheel?

[Tlaug01]

Okieeeee can someone enlighten me on tire sizes since I don't have a freaking clue. I have on my Laramie 20". 275/55/20 falken wildpeak A/T. can I safely go up to let's say from 55 to a higher number which I would think would give me a higher wall?

I a having 275 60 20s wildpeaks at put on in the morning. I heard you can get a 275 65 20 without a level, but I didnt want to push my luck.

 

[Kamikaze6780]

I a having 275 60 20s wildpeaks at put on in the morning. I heard you can get a 275 65 20 without a level, but I didnt want to push my luck.

Yeah, I have the off-road package so I believe I have a 1" lift but I don't know if that even means anything as I am not educated on tires.

Will a 65 not fit?

 

[Tlaug01]

Yeah, I have the off-road package so I believe I have a 1" lift but I don't know if that even means anything as I am not educated on tires.

Will a 65 not fit?

I've heard a 65 should fit, but I dont know that first hand.

 

[Tlaug01]

got it all done. Big horn is looking like a laramie now with the new wheels, with 275 60 20 wildpeaks

 

[egnarp]

The first number (275) is the width of the tire. Second number relates to height of sidewall. Therefore if you change to a 275/60/20 tire, it should have the same width, but around 1" taller sidewall.

 

[Kamikaze6780]

The first number (275) is the width of the tire. Second number relates to height of sidewall. Therefore if you change to a 275/60/20 tire, it should have the same width, but around 1" taller sidewall.

Thanks for the info/help.

I have currently 275/55/20 falken wildpeak. I am not familiar with these, but if they last decent for the price, I may get 275/60/20 in these same tire.

I may get bf goodrich but I will see how these are first.

 

[MN5241]

View attachment 11890 got it all done. Big horn is looking like a laramie now with the new wheels, with 275 60 20 wildpeaks

I figure the case is no, but how any rubbing at full lock? Looking to run the same tire, though will most likely level.

 

[Tlaug01]

I figure the case is no, but how any rubbing at full lock? Looking to run the same tire, though will most likely level.

No rubbing here

 

[Nucknfutz]

My truck is a 2019 Sport, with factory suspension, no air ride, no level, fit Nitto Terra Grappler G2, LT275/65/20. No Rubbing

 

[runamuck]

My truck is a 2019 Sport, with factory suspension, no air ride, no level, fit Nitto Terra Grappler G2, LT275/65/20. No Rubbing
View attachment 12208 View attachment 12207 View attachment 12206

those look more like the size the truck should come with. nice. did you get the truck reprogrammed for the new size ?

 

[Fidomac]

Okieeeee can someone enlighten me on tire sizes since I don't have a freaking clue. I have on my Laramie 20". 275/55/20 falken wildpeak A/T. can I safely go up to let's say from 55 to a higher number which I would think would give me a higher wall?

Go to tiresize.com Very helpful charts

 

[djeazie]

275 = millimeters wide
60 = 60% of width, tall ( so that tire is 60% as wide as it is tall. 65 is wider and so on.)
20 = your rim size

After adding taller tires how are you recalibrating your speedo?

Sent from my SM-N960U using Tapatalk

 

[Kamikaze6780]

What? So if my truck uses 275/55 I am going to have to recalibrate my speedo if I use 275/60 or 275/65?

 

[djeazie]

What? So if my truck uses 275/55 I am going to have to recalibrate my speedo if I use 275/60 or 275/65?

If it is a taller or short tire, yes.

Sent from my SM-N960U using Tapatalk

 

[Tlaug01]

What? So if my truck uses 275/55 I am going to have to recalibrate my speedo if I use 275/60 or 275/65?

Yes. Until I recal, my rule of thumb is up to 50 mph the speedometer is showing 1mph slower than you are actually going. 50 to 70 it reads 2mph slower than you are going and so on...this is just my general thinking. There are charts you can look up online to show you exact speeds

 

[Pyleketerson]

Fun tire math:

275 x .6 = 165

165 x 2 = 330

330/25.4 = 12.99

12.99 + 20 = 32.99 in. (there is your height)

275/25.4 = 10.83 in. (there is your width)

Once you learn the formula it’s MUCH easier to talk tires/wheels. Took me awhile before someone explained it to me.

 

[Kamikaze6780]

Well I think my brain just popped, I swear I could hear it. I work in the Aerospace industry and due to watching numbers all day long I am quite fried by the end of the day.

I though tires were showing as I saw them previously but now your juggling other numbers that I am not familiar with. Haha. For tires that is.

 

[Pyleketerson]

Well I think my brain just popped, I swear I could hear it. I work in the Aerospace industry and due to watching numbers all day long I am quite fried by the end of the day.

I though tires were showing as I saw them previously but now your juggling other numbers that I am not familiar with. Haha. For tires that is.

Ha, sorry to dump a bunch of numbers on you. Since you’re originally starting with a size in mm, you’ll eventually want to convert that in to inches. There are 25.4mm in one inch, so that is the number you will use in the conversion formula. Hope that helps.

 

[Pyleketerson]

The “20” in the formula is where you will always plug in your wheel size (18, 20, 22, etc)

 

[Pyleketerson]

Yes. Until I recal, my rule of thumb is up to 50 mph the speedometer is showing 1mph slower than you are actually going. 50 to 70 it reads 2mph slower than you are going and so on...this is just my general thinking. There are charts you can look up online to show you exact speeds

I found a calculator online that showed my bigger tires accounted for an 8.4% difference in what my speedometer was showing. For simplicity I just round up to 10% and use that. At 50 I’m really going 55. At 60 I’m actually 66, and so on. Hopefully it works...haven’t been pulled over