Offset or Diameter

[Paradigm]

Im about to pull my hair out on researching this, and I need to make a decision basically today. Where Im struggling is offset + Size. So at risk of being flamed heres my question.

2017 TRDP, Fox 3" lift going on, want to run 285/75 or 70s if I have to. My question of deliberation is. All things considered and the same. Tire size and lift. What is it that rubs the most? Is it the circumference, or is it offset?

Im torn between scs f5 at -10 and fifteen52 at 0mm to run 75's what offset is better, negative or zero?

My brain hurts, someone just help.

 

[4runnin4mylife]

Im about to pull my hair out on researching this, and I need to make a decision basically today. Where Im struggling is offset + Size. So at risk of being flamed heres my question.

2017 TRDP, Fox 3" lift going on, want to run 285/75 or 70s if I have to. My question of deliberation is. All things considered and the same. Tire size and lift. What is it that rubs the most? Is it the circumference, or is it offset?

Im torn between scs f5 at -10 and fifteen52 at 0mm to run 75's what offset is better, negative or zero?

My brain hurts, someone just help.

I would have to say offset affects the rubbing more than the circumference, since turning is where your issues comes into play! I say this because someone could go up from 265/70's to 275/70's and be fine, then add spacers and they will be rubbing when turning. This is caused by the increase in the radius in which your wheel turns. With that said -10 would put your wheel further out... same as a small spacer would do.

If you are truly going to 285/75's the 0mm offset would be better. Therefore you are only dealing with the larger circumference of the tire and not the circumference and the wider (negative) offset.

Unless you are dead set on 285/75's I would go 285/70's and get the slightly better stance with the -10mm offset wheels.

Just my opinion!

 

[ayeyothisiskyle]

What fifteen52s are you getting? HD or HD classics?

The F5s will rub a bit with both 70s/75s. You most likely will have to trim a bit off the bumper and trim/remove front muds. Body mount will rub a bit, but at full lock in most situations.

The fifteen52s will rub less iirc.

Do you have UCAs? if you do, max out caster as close to 4 as possible.

 

[dot_tom]

If the wheels are 17x8.5 -10 vs 17x8.5 0, that 10mm isn't a big deal.

Your real dilemma is 285/70 vs 285/75. That's a big difference regardless of which wheel you go with.

Decide which wheel you like the look of better and buy that one.

The second decision, decide if you want the extra height of the 285/75 or not. keeping in mind the additional loss of power due to the 285/75 being a much taller tire.

If you decide to go the more aggressive route, 17x8.5 -10 and 285/75 and the 3" lift you will be able to make it work.

Go big or play it safe, just go with what you think looks best and you won't regret it.

this link should take you to a visual picture of your dilemma. I've taken the liberty of typing in the safe option and the more aggressive option. Feel free to adjust at your own convenience.

https://www.willtheyfit.com/index.p...=75&wheel_size=17&wheel_width=8-5&offset2=-10

 

[Zed Dredd]

I'll add my 2 cents and say I agree with 4runnin4mylife that offset may have more of an impact than circumference.

While I'm no expert, I recently I swapped out my stock rims/tires on my TRD Off Road with 265/70/17 BFG ATs and XD 131 Wheels which are a 17x8 wheel with a 0mm offset. The modest difference in offset (and beefier tire) is now causing the tires to rub on the front wheel well when in reverse. I've added Bilstein 5100 shocks set at 0.85" and they still rub although it really doesn't bother me any more. I'll eventually set the shocks at 1.75" and hope that fixes the issue.

Good luck.