Can wheels be too wide for certain tires?

Martinjmpr

Wiffleball Batter
Just curious about wheel/tire sizes. I still have the (stock) BFG Rugged Trail 265/70 16s on the truck but I'm at 50k and I'm going to be needing new tires within 4-5 months.

Since I like the idea of the tall/skinny tire, I'd like to go with a 235/85 16. According to my calculator that's only an inch bigger than my current tires. Since that's just a half inch of radius, I'm not worried about clearance.

What I am worried about, though, is whether my wheels are too wide for those tires. I don't see anything on the tire given the width, though, so I'm not sure. The wheels are the optional 16" steel wheels - anyone know what the width is off hand, and/or whether a 235/85 16 will fit on it?

My concern is that if the wheel is too wide, I imagine I could run into problems with the bead unseating, especially at low pressures.

Thanks for any help!
 

kcowyo

ExPo Original
Toyota stock 16" steel wheels are 7" wide, which should be fine for a 235/85.

Check TireRack.com for available models in that size and look under their "Specs" tab which will show what tire size fits which rim size, properly. According to their site for instance a BFG AT KO in a 235/85/16 size is recommended for a 6" - 7" rim.
 

Nullifier

Expedition Leader
Although I personally would run a 6" wide rim the 7" rim should cause you no issues. Just be er a littl eon the side of caution as you air down the first time or 2 till you fins a good medium om the wider rim. Wide rims can cause you to loose a bead if you go to low in comparrison to a more narrow rim witht he same tire.
 

paulj

Expedition Leader
The spec table for a specific tire model gives the allowable Rim Width Range, as well as the Measured Rim Width for each size. A quick look at several models, shows a range of 6-7" or 6-7.5" for this tire size.

paulj
 

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