18" vs 20" rims - pro's / con's, myth's
#11
Super Duper Senior Member
Mileage is going to depend on which tires you have on the rims. The tires that came on my truck were 275/55/20 General Grabber UHP's. Summer on road performance tire. It weighed 39 lbs. I went up to 285/55/20's in a pretty aggressive all terrain tire. They are only 1" taller, and just under 1" wider, but they weight 61 lbs. I noticed a slight hit in my mileage when I installed them.
Same type and brand of tire on an 18" or 20" rim, you won't see much difference in mileage, as long as they are the same height and width.
But, as other have said, the 18" will give a bit of a cushier ride, where the 20's will give better cornering.
Love my 20's, many people actually ask if they are 22's. But I have them for looks. If I was going to be doing any serious off roading, I'd have bead lock 17's.
Same type and brand of tire on an 18" or 20" rim, you won't see much difference in mileage, as long as they are the same height and width.
But, as other have said, the 18" will give a bit of a cushier ride, where the 20's will give better cornering.
Love my 20's, many people actually ask if they are 22's. But I have them for looks. If I was going to be doing any serious off roading, I'd have bead lock 17's.
#13
Senior Member
#14
other than looks.
Thanks for all the info.
Mine came with 20's and i like them, my son's came with 18's and at first we were going to swap them which had me wondering what all the differences were. The 20's were considerably more $ and not too mention when you go buy new rubber up here anyway, that you will def. pay more $ for 20's vs the 18's when the time comes.
#15
Senior Member
yes correct, was referring to why some stock trucks come with 18's vs 20's
other than looks.
Thanks for all the info.
Mine came with 20's and i like them, my son's came with 18's and at first we were going to swap them which had me wondering what all the differences were. The 20's were considerably more $ and not too mention when you go buy new rubber up here anyway, that you will def. pay more $ for 20's vs the 18's when the time comes.
other than looks.
Thanks for all the info.
Mine came with 20's and i like them, my son's came with 18's and at first we were going to swap them which had me wondering what all the differences were. The 20's were considerably more $ and not too mention when you go buy new rubber up here anyway, that you will def. pay more $ for 20's vs the 18's when the time comes.
#16
GDreject
I have 20's and no problems with curbs!
#17
I like my 20s..Less body roll..although it took a while to figure out what pressures to run..35 frt 32 rear..rear end is way too light! I miss some fuel economy because of the flywheel effect. So have to watch foot or the transmission wants to downshift. However trucks looks Boss!
Power suffers as well. But I couldn't imagine trying to keep the 17/18s from spinning. these 20s will fry! Corning is a plus as well, I really like the responsiveness of the 20s. and the electric steering, great feedback as well..I had the 2011 3.5 w20s and it too would fry the tires, but it handled very well. I think it rides better as well. hope this helps.
Power suffers as well. But I couldn't imagine trying to keep the 17/18s from spinning. these 20s will fry! Corning is a plus as well, I really like the responsiveness of the 20s. and the electric steering, great feedback as well..I had the 2011 3.5 w20s and it too would fry the tires, but it handled very well. I think it rides better as well. hope this helps.
#18
Sure, your wheel weighs more than your tire.
But the bulk of that tire weight is in the tread.
We're talking about the following:
- An extra 1-inch band of sidewall (all the way around the tire)
- Decreasing the overall diameter of the wheel by two inches.
Weighing less than:
- Removing that 1-inch band of sidewall (all the way around the tire)
- Increasing the overall diameter of the wheel by two inches.
Logic dictates that while you did also provide a factual statement here, it's not relevant to the discussion at hand.
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Silvertt (02-01-2022)
#19
My 14 had 20's, which I had on during the spring summer and fall then switched to snow tires on 17" rims. Since i had a tune I could adjust for the change in Revs per mile. The ride though changed dramatically. The 20's give a firmer more car like ride and handling. The larger sidewall 17's had more give which made the truck handle softer and more bounce to the ride.
Since I still have the 20's that were on the 14, I can do a direct comparison since my 16 has the 18" LT tires. It has a soft bouncy ride which I don't care for and look forward to the firmer riding tires. I never go off road, and don't really need 4WD either, but its all that is available. If they improve handling I will enjoy the truck more.
Since I still have the 20's that were on the 14, I can do a direct comparison since my 16 has the 18" LT tires. It has a soft bouncy ride which I don't care for and look forward to the firmer riding tires. I never go off road, and don't really need 4WD either, but its all that is available. If they improve handling I will enjoy the truck more.
#20
Super Duper Senior Member
For a 2wd truck, yes. But not for a 4wd truck. (In my year range)
I have a 2 1/2" level, and the largest I can go without rubbing is 33"/12.5"/20". The 285/55/20's are 32.28"/12.28"/20".
I could have gone a little taller, but wanted to give myself a slight buffer from the max size I could do.
I have a 2 1/2" level, and the largest I can go without rubbing is 33"/12.5"/20". The 285/55/20's are 32.28"/12.28"/20".
I could have gone a little taller, but wanted to give myself a slight buffer from the max size I could do.