What Tires!!
Posting Guru
Joined: Apr 2003
Posts: 1,089
Likes: 1
From: Michigan
See....I am debating this. Dumb question but here goes. I want a bigger tire than stock anyway, but if I switch from my current 20" rim to say a 17", do you think it'd mess up my speedometer? The 20"s probably weigh more?? So the smaller rim and bigger tire should offset each other??
Logistics Pro
Joined: Jul 2006
Posts: 4,512
Likes: 18
From: Detroit
I do not understand your question about mileage here. If you have a 31" tire with the same tread design and width, I would imagine that your gas mileage would not change much based on wheel size alone. In general, the 31" wheel/tire combo would weigh somewhat more with the 20" diameter wheel than with 17 or 18" (metal is heavier than rubber) and might affect your city mileage just a tiny bit (because it takes a bit more power to get the wheel/tire rolling--for a ridiculous example, imagine your tires were full of concrete...they would take a lot more power to get rolling).
Tire spec charts have information like overall diameter, section width, tire weight (don't forget to add wheel weight), etc. Are you considering increasing the overall diameter of the tires?
George
New User
Joined: Sep 2010
Posts: 23
Likes: 0
From: Lake Charles, LA
thanks! Yeah right now I have a stock 32" tire on a 20" wheel. I'm thinking of switching to a 33" or 35" tire on a 17" rim.
Really would like to get the Ford Raptor stock tires & rims for my truck. They are 35" tires on 17" rims.
Really would like to get the Ford Raptor stock tires & rims for my truck. They are 35" tires on 17" rims.
Hotshot
Joined: Sep 2010
Posts: 10,459
Likes: 10
From: RVA
I'm personally a fan of the stock 20" with a 275/65/20 tire (roughly a 34 by 11)
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