New Tire Question ?

[Granite Willys]

A Friend gave me Four Sahara wheels with Falken Wildpeak at3w tires they are 18 inch wheels. I put them on my 21 Willys yesterday and they ride much smoother than the Oem Firestone Mud terrain tires which were wearing quickly. My question is, is there a way to figure out how much this will effect the speedometer reading ? Wondering if there is a chart somewhere. Original tires were 255/75/17. New tires are 265/65/18.

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[garyji]

You won't even notice it. They're fine.

G.

 

[Jim1964]

https://tiresize.com/comparison/

 

[Granite Willys]

Thanks for the reply.

 

[jmr]

-1.55% speedometer error so you will be slower than indicated.

55 is 54.1
60 is 59.1
65 is 64
70 is 68.9
75 is 73.8

 

[Granite Willys]

Thank you, Free tires though !!!!

 

[Old Dogger]

Great tires, definitely one of the best.. ?

 

[lowmpg]

A Friend gave me Four Sahara wheels with Falken Wildpeak at3w tires they are 18 inch wheels. I put them on my 21 Willys yesterday and they ride much smoother than the Oem Firestone Mud terrain tires which were wearing quickly. My question is, is there a way to figure out how much this will effect the speedometer reading ? Wondering if there is a chart somewhere. Original tires were 255/75/17. New tires are 265/65/18.

You went from 629 revolutions per mile to 639, so very small change. You can check all the tire specs to compare here: https://tiresize.com/calculator/

 

[Mudduck]

Free tires are awesome!
There are several tire size comparison tools online. It will show you an overlay of previous vs current and give you the proposed speed differences.

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