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Old 02-14-2014, 11:20 AM   #1
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New TV Tire Size Question

Hello All,

The DW and I are finally ready to pull the trigger on a new TV to replace our aging Trailblazer. I am sold on the new 2014 Chevy Silverado but am curious on the advantages/disadvantages of 20" tires/rims a compared to 18" tires/rims. I have been looking at two different options on a few trucks that come with 18" or 20" tires. Any input?
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Old 02-14-2014, 11:43 AM   #2
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Rim size is only part of it. The amount of sidewall the tire has plays a big part of load capacity as well as stability of the tire. My opinion is a tire with a 65-70 aspect ratio to tire width is best for towing. You may not be able to find that in a 20" diameter without going to a rather large over all sized tire.

265/70/17 is what is on my truck.

265 is the width of the tire while 70 is a ratio of sidewall vs tire width an the 17 is rim diameter.
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Old 02-14-2014, 11:59 AM   #3
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I have 275/65R20 Michelins on my F350 and no problems at all towing. A 20" tire looks better on a larger truck IMHO.
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Old 02-14-2014, 12:54 PM   #4
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Missing Tire Size

Sorry. The tire size would be 265/65/18 or 275/55/20. My question is there an advantage to one size over the other? Either would be factory installed options.
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Old 02-14-2014, 01:02 PM   #5
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whats the load range on the two tires you question ?
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Old 02-14-2014, 01:07 PM   #6
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Don't like the squatty look of 20"s. Nor the higher cost. My 18" cost too much already on my half ton. Father in law has 16"s on his Chevy 3/4 ton. ??
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Old 02-14-2014, 01:27 PM   #7
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My stockers are lt275/65/20....my nittos are 35x12.5x20....over all nearly identical in height....the stock 17 or whatever ford puts on the other 250s look funny heck even the 20s look like pizza cutters on the big ol truck.....although the stock michellins tow and drive fantastic....

Also ford makes u go to the 355 rear end instead if you option the 20s from the factory...I think the smaller wheels come with like 337 rears....so there is some difference there as well..
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Old 02-14-2014, 01:50 PM   #8
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I don't know the load range of either tire size. We have seen both sizes on various models at the dealer lots. Our trailer is only 4700-5300 lbs.
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Old 02-14-2014, 01:56 PM   #9
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Quote:
Originally Posted by tipakajohn View Post
I don't know the load range of either tire size. We have seen both sizes on various models at the dealer lots. Our trailer is only 4700-5300 lbs.
Is that weight ready to roll down the road or sticker light weight?
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Old 02-14-2014, 01:58 PM   #10
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That weight is my estimate. I would guess it is lower than the actual weight once I start to think about it.
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