285/70/17 on TRD Pro Wheels

I have read that a 285 should not go on a 7” wheel such as the TRD Pro wheel as a 7” wheel is too narrow for that size tire but I have also seen quite a few pictures on this site with that combination. Does anyone know the definitive answer to this question? Thanks for any information that can be provided.

 

All tire manufacturers do not recommend using a 285 series tire on a 7" rim. The minimum recommended width is 7.5", again from tire manufacturers. You can go on to Falken, Toyo, BFGoodrich, whatever and they all say the same thing.

Can you physically place a 285 on a 7" rim, yes absolutely. Have I seen it done without issue? Yes. Do tire manufacturers recommend it. No.

I'm not a tire scientist or tire engineer, but I can assume that the tire isn't designed to be pinched on a 7" rim, or that a 7" rim is out of the range of flexibility for a 285.

 

I have not heard any horror stories, or even mishaps with that combo, but maybe someone can chime in. I have been running mine for a year or so with no problems with anything.

 

I can tell the difference because I have done it on my Tacoma and now my Pro. Just the stock size tire 265/70/17 when it mounted on my SCS wheel being 8.5 inch you can tell it handles better. So jumping up to a 285 it’s definitely going to handle better with the 8.5 inch wheel than a 7 inch wheel. Just my opinion.

 

It's fine.

I know guys who have put 35's and 37's on 7" wheels with zero issues.

 

Been done a million times

 

I'm switching to a 9 inch rim for my 285s. Plus, you can sell your TRD PRO rims easily.

 

Several have done it with no issues. Personally 285’s look better on 8“+ wheels. Gives it more of a stretch.

 

The X overland guys drove their runner all the way from North America through South America with no issues with 285/70R17 on the pro wheels. just sayin.

 

It’s fine until you hit the limit of maximum force leading to failure. Most will never get to that point. But if a deer runs out in front of you and you swerve too sharply at speed, the not-so-recommended tire size will lose a bead before the recommended size.

The recommendations are there to protect people. Just like airbags. Most won’t need the airbags, but some will. And airbags will save some. But some accidents will be beyond the limits of the airbags ability to protect.

This stuff isn’t complicated, nor is any entity conspiring to limit tire sizes. The recommendations aren’t there to make lives miserable. They’re just recommendations. And they probably prevent a handful of tragedies each year.

 

It'll work but to prevent tire wear in the middle you're going to have to air them down some, which does affect handling.

 

I bet you’re fun at parties

 

Still going over 10,000 miles strong on my 285/70/17 Falken MT’s on OEM 7” TRD PRO wheels.

 

sweet ride...

 

I’m a lot more fun with a coupla drinks in me, yes.

 

I'm in the process of putting a 3in lift (OME BP-51) on my 2020 TRD and I'm starting to ask myself the same question, I'd like to keep my TRD rims but would also like to run 285's vs. 275's, I hear you can still fit a 285 on a stock TRD rim underneath in the spare compartment (tightly albeit)... anyone have experience with this? Also, has anyone run into tire places refusing to mount 285's on a TRD rim (or any 7inch wide rim)?...just getting my bearings with all this and there's so much conflicting info on forums and the internet in general. Thanks everyone, Happy Holidays

 

Also, if I were to mount 285's on a stock TRD pro rim would it be best to mount a stiffer sidewall load-E tire or a normal load-C tire to make it as safe as possible? Or would it matter? THX

 

Not everyone read specs before they do a mod..

 

285=8.5 wheel.

 

285/70/17 Falken Wildpeak MT on OEM steel spare wheel mounted in spare location with no issues. Went to America’s Tire and they gave me no lip on mounting the tire on the wheel. YMMV

 

LAstly, anyone know Are you able to put a 285 underneath if getting an aftermarket 17' 8.5 wide wheel? looking at the rrw rr5vwith -12 offset

 

If they are the same offsets as SCS wheels I would think they would work.

 

I have been running 285/70/17 on the pro wheels for close to two years now with no issues.

 

IM ASSUMING IT NOT GOOD IF YOU ARE RUNNING VERY LOW PRESSURE OFF ROADING - I HAVE NOT HEARD OF ANY ISSUES NORMALLY INFLATED

 

It's actually better offroad.