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Message
Can I put smaller tire on my truck?
Posted on 3/6/19 at 5:38 pm
Posted on 3/6/19 at 5:38 pm
My truck calls for 285/60r20e tires. Can I put 275s on instead? Many more choices in that size and way cheaper.
8
Posted on 3/6/19 at 5:44 pm to mikie421
Yes but you will run a little higher rpms at same speed you normally would with tires you have now. I don’t think it would be that big of a difference tho.
Posted on 3/6/19 at 5:49 pm to Gatorgar
I guess my question is will the tire fit on my wheel?
Guy at my mechanic shop said I shouldn’t do it.
Guy at my mechanic shop said I shouldn’t do it.
Posted on 3/6/19 at 5:56 pm to mikie421
I’m no tire expert but if it’s a 20” rim size tire Yes.
Posted on 3/6/19 at 7:02 pm to mikie421
Baw...this is blasphemy. You from the north shore or something?
Posted on 3/6/19 at 7:15 pm to Tigah Jr
Lol, I know. And yes.
Posted on 3/6/19 at 8:36 pm to mikie421
What’s next, you wanna put smaller titties on your wife?
Posted on 3/6/19 at 8:37 pm to mikie421
275 is the width of your tire, which means it is 275 millimeters wide. I doubt 10 mm of width will make a difference. Depending on what the aspect ration (2nd number) is, the tire may be the same height as the 285 and not affect the speedometer reading.
Posted on 3/6/19 at 8:39 pm to mikie421
Sure, it’s just a skinnier tire.
Posted on 3/6/19 at 8:46 pm to Yewkindewit
Width x aspect ratio = rim to tire edge
Rim to tire edge x 2 = diameter minus rim (metric)
Diameter minus rim x 0.03937 = diameter minus rim (inches)
Diameter minus rim + rim diameter = total diameter of wheel
285 x 0.6 = 171 x 2 = 342 x 0.03937 = 13.46 + 20R = 33.46” diameter
275 x 0.6 = 165 x 2 = 330 x 0.03937 = 12.99 + 20R = 32.99” diameter
Your speedometer may be slightly lower at high speeds but you probably won’t notice much difference.
Rim to tire edge x 2 = diameter minus rim (metric)
Diameter minus rim x 0.03937 = diameter minus rim (inches)
Diameter minus rim + rim diameter = total diameter of wheel
285 x 0.6 = 171 x 2 = 342 x 0.03937 = 13.46 + 20R = 33.46” diameter
275 x 0.6 = 165 x 2 = 330 x 0.03937 = 12.99 + 20R = 32.99” diameter
Your speedometer may be slightly lower at high speeds but you probably won’t notice much difference.
Posted on 3/6/19 at 9:21 pm to mikie421
Don't put tires so skinny to where you have to stop and crawl over the railroad tracks.
Posted on 3/6/19 at 9:30 pm to bapple
quote:
Your speedometer may be slightly lower at high speeds but you probably won’t notice much difference.
If the change is to a smaller diameter (more revolutions to travel the same distance), wouldn't that make the speedometer read a higher speed than the vehicle is traveling?
Posted on 3/6/19 at 9:39 pm to BiggerBear
No. Just the opposite. A bigger tire has a higher linear velocity than a smaller one. So you will travel farther with larger tires spinning the same number of times.
Posted on 3/6/19 at 9:47 pm to REB BEER
nvr mind
This post was edited on 3/6/19 at 9:49 pm
Posted on 3/6/19 at 11:30 pm to mikie421
I went with 275's instead of 285's and haven't noticed much of a difference. There are tire comparison calculators that tell you what size you can change to and how it affects rpm and mileage. I just found a tire size that was close to what factory specs are and what the dealership put on. The 275's were much cheaper.
For what it's worth, I don't tow much or go off road. I do use my truck to haul lumber for building furniture.
For what it's worth, I don't tow much or go off road. I do use my truck to haul lumber for building furniture.
Posted on 3/7/19 at 6:17 am to akimoto
Any issues with running a load range d instead of e?
Truck is a 2015 ram 2500 4x4 diesel. I have a boat that is about 10,000 lbs. but only tow it from the shed to the launch, about 3 miles. No other towing for the most part.
Truck is a 2015 ram 2500 4x4 diesel. I have a boat that is about 10,000 lbs. but only tow it from the shed to the launch, about 3 miles. No other towing for the most part.
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