Rim Width

[tallsville]

ok im sure this has been asked before but im having an old blonde day and cant find it. is there certain tire widths that have to go with certain rim widths? ei will a 285 tire fit on 10" wide rim or a 305 fit on an 8" wide rim, etc ?

 

[Soldier777]

I run 285's on 8" wide and I bet I could run a 305... dont know if i would go much wider than that though

 

[tallsville]

ok so far i've been looking at other forum/ places trying to find answer and so far i find that it says to look at tire specs online for each manufacture and it gives an acceptable rim width range. does anybody have any other info?

 

[LastExpo2000]

ok so far i've been looking at other forum/ places trying to find answer and so far i find that it says to look at tire specs online for each manufacture and it gives an acceptable rim width range. does anybody have any other info?

285's on a 10 in should be fine. I ordered some 9 in rims for my 265s until I get bigger tires

 

[Remo]

I like this tool:

http://1010tires.com/TireSizeCalculator.asp

 

[Remo]

Also, the more sidewall the tire has, the bigger the acceptable range in most cases. No chart or tire shop will tell you that, but it is definitely the case.

 

[GAINMOB]

10 wide with 305...can do 315...

 

[tallsville]

thanks remo. that helps. i've been looking at rims on craigslist. and im just trying to see which is best to get. dont want to get a rim where i have to buy $500 to fit it.

 

[walnuts4x4]

8 or 10s for 285s and bigger

 

[Thermo]

The rule of thumb I use for all terrain tires and MT tires is what I call the 4" rule. As long as the tread width is within 4 inches of the rim width, then you are good. When you start going with low profile tires, then the difference can not be as great. I am running 37x12.5's on an 8" wide rim. They fit on there fine and keep the rim out of the way during 4x4ing.

Just keep in mind that when using a wider rim, it can lead to clearance issues as the backspacing is remaining constant, so, all the additional width is going to the outside edge which will lead to the tire touching the back of the front wheel wells sooner. For example, with a 4" lift, you can fit 315/75R16's (aka, 35x12.5's) on an 8" rim, but if you were to use a 9" wide rim or wider with the same backspacing, you will have rubbing issues. So, it is a balance between what you want and what you have clearance for.

 

[tallsville]

thank you guys for the responses. these helps me narrow the search on rims