anybody have pics with 275 60 20's

[mcloven]

looking for some pics of 275 60 20s, preferably on oem wheels lifted and non lifted.

 

[Patsfan4lif]

What size you running now?

 

[Patsfan4lif]

looking for some pics of 275 60 20s, preferably on oem wheels lifted and non lifted.

What size are you running right now?

 

[gixer2000]

What size are you running right now?

Most likely he's running stock 275/55/20 and wants to gain a little more sidewall

 

[Patsfan4lif]

Thts what I figured but I doubt you’ll be able to really tell a difference in a tire that’s gonna give you maybe .5” top and bottom

 

[mcloven]

currently i have the 275 55 20's Hancook dynapro all terrain. i would like to have a more aggressive, taller tire. i don't really want to do a lift, if i did, it would be something minimal like a 1.5f/1 rear. i tow a lot so i want to keep some rake in it. i also drive a lot so i want something that still handles fairly well on the curvy roads of the ozarks. I'm basically looking for the best of both worlds. I think that any tire over 33 inches i would want to regear and i would like to avoid that if i can but i may do eventually. i know that the 275 60 is just about 1 inch taller and that doesn't seem like much, but i am thinking that it may be just enough to accomplish what i am going for. all the pics i find are with much larger tires.

 

[1955moose]

What your trying to accomplish with a half size on the aspect ratio or in laymen's terms go from a 55 to 60 might do what you want, but will throw off your speedo reading, and raise your gear ratio a smidge. You should be ok on clearances front and rear. What year is the Expedition? Always post that info along with motor size, in your case only the year just in case things are different between years. One last thing although minor, going to a 60 aspect will make your SUV slightly less stiffer going through corners, as sidewall is spongier. On the plus side, it should be nicer over bumps/potholes.

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[Patsfan4lif]

What your trying to accomplish with a half size on the aspect ratio or in laymen's terms go from a 55 to 60 might do what you want, but will throw off your speedo reading, and raise your gear ratio a smidge. You should be ok on clearances front and rear. What year is the Expedition? Always post that info along with motor size, in your case only the year just in case things are different between years. One last thing although minor, going to a 60 aspect will make your SUV slightly less stiffer going through corners, as sidewall is spongier. On the plus side, it should be nicer over bumps/potholes.

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Going up 1” isn’t gonna do shit to the speedo. Maybe 0.5mph difference. I went to 35s and mine was off by maybe 2mph.

 

[1955moose]

If you say so. But theirs a reason both tire manufactures and the car dealers themselves recommend keeping the height the same as designed originally. 4 wheel drive vehicles in particular are very sensitive that tire depth is close on all 4 because of all wheel and 4 wheel drive. Do us all a favor please and keep the profanities to yourself. We try to keep the forum clean for all reading it. Thanks.

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[D Derr]

Going up 1” isn’t gonna do shit to the speedo. Maybe 0.5mph difference. I went to 35s and mine was off by maybe 2mph.

Going from a 275/55-20 to a 275/60-20 will change the speedo by about 3.4%. So, if your speedo is correct with the 55 aspect ratio tires, after the change to 60's, 70 mph indicated would be 72.4. This is totally by calculation and different tires will vary a bit from the strict height calculations. But, it will be close to that; so a small difference.

 

[D Derr]

Going up 1” isn’t gonna do shit to the speedo. Maybe 0.5mph difference. I went to 35s and mine was off by maybe 2mph.

Oh, and going to 275/35's (4.3" shorter tire) would make a calculated difference of 13.6%! So, an indicated 70 would be an actual speed of 60.5 mph. THAT is a huge difference.

 

[Patsfan4lif]

Going from a 275/55-20 to a 275/60-20 will change the speedo by about 3.4%. So, if your speedo is correct with the 55 aspect ratio tires, after the change to 60's, 70 mph indicated would be 72.4. This is totally by calculation and different tires will vary a bit from the strict height calculations. But, it will be close to that; so a small difference.

Calculate going from a 275/55/20 to a 35/11.50/20 and tell me why my speedo was off by less than 2mph

 

[Patsfan4lif]

Oh, and going to 275/35's (4.3" shorter tire) would make a calculated difference of 13.6%! So, an indicated 70 would be an actual speed of 60.5 mph. THAT is a huge difference.

I got my results from gps, driving next to another exact expedition and seeing difference and on 3 different radar guns. I think your math is wrong sorry to burst your bubble. And if someone is really worried about 5mph then do what I did and get a speedo corrector.

 

[1955moose]

The speedo difference is no big deal, who really cares if your speed is dead on anyway. When you see a cop, your always on your best behavior anyway, and hoping to God, when you turn left, he turns right! I grew up in a time when speedos didn't work at all most of the time, and did like I did in my brother in law's Austin Healy3000, and take the Rpm and double it, 3,000 rpm equals 60mph. He kept that car for all the 60's, through 71, I think. Great car, I wish I had it myself today.

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[Vancouver Bob]

I was snooping around on the Custom Offset site. You can get a pretty good idea of different tire sizes, different offsets on the Expedition or whatever other car you might be interested in. The 275 60R20's are 33" tall, about 10.5"wide. Offset is going to make a big difference in appearance.

Here's a 2004 with a 3/2.5 lift(level), these are -25 offset so stick out a fair amount.

 

[Vancouver Bob]

 

[limitedex]

I had 275/60/20 on stock platinum/limited wheels. Obviously they were bigger and you could tell. Going from 31.9” to 32.99” is noticeable. I had Goodyear Duratracs too. I sold them to a friend after about 5,000 miles since I wanted something wider. Went back to 305/55/20 on Fuel Anza wheels.

 

[Patsfan4lif]

35/11.5s nimrod

 

[D Derr]

Calculate going from a 275/55/20 to a 35/11.50/20 and tell me why my speedo was off by less than 2mph

OK, thought you meant you went to 35 aspect ratio tires. Anyways, the difference between 275/55-20 (31.9" tall) and a 35" tall tire is almost 10%. So, if your speedo was dead on with the original tires, at an indicated 70 mph with the 35" tires, you would be going about 77 mph. Now, about being only 2 mph off, all things being equal and linear, you would be only 2 mph off at 20 mph. So, not sure how you calculated anything, but that is the cold hard math of the situation. Math is really quite simple; if you need help, let me know.

 

[LokiWolf]

I got my results from gps, driving next to another exact expedition and seeing difference and on 3 different radar guns. I think your math is wrong sorry to burst your bubble. And if someone is really worried about 5mph then do what I did and get a speedo corrector.

Did you measure stock? My guess would be no. So your scale is off most likely.

D’s math is dead on.

Our 2015 had 34’s. GPS calibrated stock it was off a fair amount(Don’t remember percentage exactly). Once lifted and with 34’s it was actually closer to accurate based on GPS. My guess is yours was off Stock, so therefore the effect your taller tires had was less.