Tire size comparison web page.

[OuterUB]

Thought this might be usefull if not already here somewhere ....

285/60-R20 vs 35/12.5-R20 Tire Comparison - Tire Size Calculator | Tacoma World

35/12.5-R20 tires are 1.56 inches (39.6 mm) larger in diameter than 285/60-R20 tires and the speedometer difference is 4.4%

www.tacomaworld.com

 

[H3LZSN1P3R]

Thought this might be usefull if not already here somewhere ....

285/60-R20 vs 35/12.5-R20 Tire Comparison - Tire Size Calculator | Tacoma World

35/12.5-R20 tires are 1.56 inches (39.6 mm) larger in diameter than 285/60-R20 tires and the speedometer difference is 4.4%

www.tacomaworld.com

That is ok this page here has all kinds of great tools like offset comparison and more https://tiresize.com/calculator/

 

[OuterUB]

Now THAT'S a lot of information !

 

[Gondul]

Sticky at the top of the page with that, and a bunch of other information...

Wheel/Tire Size and gearing online resources

Bored cruising the internet and found this site which may be useful for folks looking at tire/rims compared to OEM. If the link is right, it should show the stock set up on the left and the custom on the right... keeping the same tire and going to a wheel with +18 offset creates positive scrub...

hdrams.com