I still need help with 20" wheel sizing.... Help please...

[Hazieview]

I've pretty much asked this question a million times but I still have never gotten a straight answer so... Here goes!

I have drop spindles in the front and hangers/shackles in the back.

What size 20s do I need? What size tire?


Is anyone else running 20s with a drop like mine? If so can you post a picture of your truck? Someone PLEASE help me so I can quit posting this same question. Thanks guys!!!

[bagged81]

Are you looking for help selecting the width? I have 8's on my truck and I am happy. I think that is a pretty good all-around choice.

[C-10volvo]

It all really depends what you're after and what you can find in your budget. I strongly suggest reading this post Here.

He is running:
20x10 4.5BS: 295-40-20
20x8.5 5BS: 245-40-20

[Hazieview]

I know exactly what wheels I want. The grey C55s from Coys.

I just need to know the size. I know I want 20s I just dont know the width and backspacing I will need and what tire would look good with my drop.

[C-10volvo]

Originally Posted by Hazieview

I know exactly what wheels I want. The grey C55s from Coys.

I just need to know the size. I know I want 20s I just dont know the width and backspacing I will need and what tire would look good with my drop.

20x10 4.5BS: 295-40-20
20x8.5 5BS: 245-40-20

[SCOTI]

Originally Posted by C-10volvo

20x10 4.5BS: 295-40-20
20x8.5 5BS: 245-40-20

FWIW, I would recommend 255-40/20's up front for a good 4" of sidewall to offer better deflection vs. potholes if driven daily.

20x8.5's w/5.25"BS
20x10's w/5.00" BS

[tvblazer78]

Originally Posted by SCOTI

FWIW, I would recommend 255-40/20's up front for a good 4" of sidewall to offer better deflection vs. potholes if driven daily.

20x8.5's w/5.25"BS
20x10's w/5.00" BS

255-40-20 is only .2 taller then a 245-40-20. take a look at this link. This site will tell you everything about the two sizes, just put the two sizes in and it will Calculate it for you..

http://www.miata.net/garage/tirecalc.html

[SCOTI]

Originally Posted by tvblazer78

255-40-20 is only .2 taller then a 245-40-20. take a look at this link. This site will tell you everything about the two sizes, just put the two sizes in and it will Calculate it for you..

http://www.miata.net/garage/tirecalc.html

You are correct, the 245 is only .30 shorter & I use a traditional math calculator to figure my numbers. My point was..... for daily driving, strive for a 4.00" minimum to help prevent wheel damage from potholes which equates to the 255-40 recommendation.

Hazieview..... keep in mind that regardless of what math calculation indicates, it's only an estimate. Each tire manufacturer should have a list w/their tire dimensions.