Not long ago, I put some 20's (20x8.5)on lay-a-way for my boring 02 Blazer. Tires they want to give me are p245/40/r20. I was not sure this was a good idea & someone just told me I need a taller tire like at least a 255 or expect to me mad as h** due to busted tire/bent rim. Suggestions please!!!

 

Certainly someone has a suggestion..I know! Wake up guys! I need your input, please!

 

well a taller tire would be like a 245/50 or 245/55 a 255 tire is wider. the first number is the width and the 2nd number is the height of the tire. and yes a 40 will have a thin side wall.

 

Wow! go figure. So what can I put so I Dnt have a problem?

 

well both right. The second # is % of the first, which is measure of sidewall to sidewall width -not tread- in MM .
Reading A Tire Sidewall

So a 255 would have a taller sidewall than a 245.. not much but some.

I'm old school though.. If I dont see brake rotors rim to rim I think 'Ricer'


Remember.. you also need to consider overall tire height
http://simonstires.com/TireHeightChart.aspx

 

Ok I'm understanding a little now but still not sure what would be good or best to go with

 

id get at least a 50 or 55 sidewall

 

I saw someone else here had 20's with 275/46/20 and it looked nice.

*can't find that blazer pic with those tires but I think it might have been 4x4, mine is not. So not sure if that would make a difference.

I guess when I go make a payment I'll ask them for a taller tire.

 

I'm pretty sure it goes in increments of 5 so i don't believe a 46 exist

 

Sorry typo from iPhone. It was showing as 275/45/20