275/55-R20

[Mike Todd]

I have the opportunity get a smoking deal on a new set of 275/55-R20 BFG All Terrains.
These will be about an inch shorter than the stock 275/60-R20 that are on the truck right now.
I plan on using these for a winter tire.
Almost all threads regarding tire size is about how big people can go. Nothing about actually going to a bit of a smaller aspect ratio.
Will I have an issue with the speedometer reading correctly or any other issues going to a shorter tire?

 

[2016Bighorny]

If it makes you feel any better, the oem tire size for 20" rims on the 2019's, is p275/55-r20...

 

[ram1500rsm]

You should have no other issues, other than your speedo reading faster than what your speed actually is, which can be corrected if you wish.
Beneifts: little better mpg and little better overall performance, especially if you're running 3.21's

 

[chrislewis6568]

I have the opportunity get a smoking deal on a new set of 275/55-R20 BFG All Terrains.
These will be about an inch shorter than the stock 275/60-R20 that are on the truck right now.
I plan on using these for a winter tire.
Almost all threads regarding tire size is about how big people can go. Nothing about actually going to a bit of a smaller aspect ratio.
Will I have an issue with the speedometer reading correctly or any other issues going to a shorter tire?

Of course everything is going to be spinning faster and your speedo will be out as far as your tranny switching gears that will be also be out


Sent from my iPhone using Tapatalk Pro

 

[pacofortacos]

If you want your speedo and mpg to read correctly, take it to the dealer (or someone else who can change the tire size) and use the 265/70/17 tire size - they are about the exact same size and the 275/55/20's are.