What is the benefit of downsizing from 20" wheels to 17" or 18" other than looks. Wanting to get rid of factory SR-A's. Thinking about staying same height tires but wider. Not wanting to give up much in mpg.
Thanks
Thanks
Wheel Size
- Thread starter mrwayne
- Start date
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crazykid1994
Senior Member
The smaller rims give you more sidewall which allows for a softer ride. It’s good for off-road. You may lose a little mpg as a the tire choices are most likely going to be a bit heavier. It shouldn’t be noticeably much with the same diameter though
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RainDesert
Senior Member
You will save wheel weight, wheel cost and tire will cost a little less. Go for a lighter AT tire like cooper AT3 to help the mpg.
awpratt
Member
I also am looking to go away from the factory 20's I am looking to get the smallest wheel diameter I can put on my 2017 Express Crew I am a big fan of the smaller wheel more tire combination but want to stay with stock tire height a slightly wider tire would be fine. I am wondering if anyone has specific wheel sizes and widths and offsets that would keep things relatively stock configuration. thanks for any information
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17's are the smallest wheel diameter you can go
John Jensen
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I changed from 20" to 17" Rebel wheels with 285/70-17 E Falken A/T3W tires.
Here are the wheel specs and a pic.
Rebel - 17x8.0 Wheel - Offset +18.05 mm - Back Space 5.50”, 29 lbs
Big Horn - 20x8.0 Wheel - Offset +19.5 mm - Back Space 5.25”
Laramie - 20x9.0 Wheel - Offset +19.5 mm - Back Space 5.75"
All:
Lug Pattern = 5 x 5.5” (139.7mm)
Studs = 9/16”, Thread M14x1.5
Hub Bore = 3.06”/3.075” (77.8mm/78.1mm)
TPMS Sensors = 68249197AA
Here are the wheel specs and a pic.
Rebel - 17x8.0 Wheel - Offset +18.05 mm - Back Space 5.50”, 29 lbs
Big Horn - 20x8.0 Wheel - Offset +19.5 mm - Back Space 5.25”
Laramie - 20x9.0 Wheel - Offset +19.5 mm - Back Space 5.75"
All:
Lug Pattern = 5 x 5.5” (139.7mm)
Studs = 9/16”, Thread M14x1.5
Hub Bore = 3.06”/3.075” (77.8mm/78.1mm)
TPMS Sensors = 68249197AA
Last edited:
WTM75
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awpratt
Member
I changed from 20" to 17" Rebel wheels with 285/70-17 E Falken A/T3W tires.
Here are the wheel specs and a pic.
Rebel - 17x8.0 Wheel - Offset +18.05 mm - Back Space 5.50”, 29 lbs
Big Horn - 20x8.0 Wheel - Offset +19.5 mm - Back Space 5.25”
Laramie - 20x9.0 Wheel - Offset +19.5 mm - Back Space 5.75"
All:
Lug Pattern = 5 x 5.5” (139.7mm)
Studs = 9/16”, Thread M14x1.5
Hub Bore = 3.06”/3.075” (77.8mm/78.1mm)
TPMS Sensors = 68249197AA
I like the look of the smaller wheels and I'll bet the rid is better with more tire to absorb the road shocks we'll see what happens next spring the RSA's should be wore out by then
I
StevieK
Junior Member
Did you buy a spare or can you get away with using the 20" Big Horn wheel/tire as a spare?
VA-RAM
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The stockn spare on my 17 Laramie 1500 is a 17" wheel with something like a 205/65 tire on it. It's a black 5 star stock Ram rim but with a thinner, taller tire. Space and weight considerations I guess. Manual also says it is a temp spare...but definitely not a donut!!
StevieK
Junior Member
Thanks VA-Ram
VA-RAM
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