Another Wheel Offset Question

H

H_MED

Member
Car
2011 FX35 AWD
Good Evening,

I've been here visiting for a few weeks now and gathering great information on wheel setup and offsets.

I'm looking to purchase a set of Ferrada FR4's 20x10.5 F&R (295 45 20's). Trying to decide correct offset that won't interfere with the AWD system and daily driving. Which Offset would you guys recommend?
+15
+28
+38

2011 FX35 AWD


Thanks in advance for your help.
 
Every wheel rim has the offset marked on the inside it should read as ET 15 or 28 or 38 if you want to know the offset you have just remove one of your rims
 
Appreciate the input, however I was trying to see if anyone has personal experience running the offsets mentioned above
 
H_MED said:
I'm looking to purchase a set of Ferrada FR4's 20x10.5 F&R (295 45 20's). Trying to decide correct offset that won't interfere with the AWD system and daily driving. Which Offset would you guys recommend?

+15
Click to expand...
Inner Clearance: (the inside of the wheel to the strut housing) 3 mm more
Outer Position: (position of the outside edge of the wheel) extend an extra 67 mm

H_MED said:
+28
Click to expand...
Inner Clearance: (the inside of the wheel to the strut housing) 10 mm less
Outer Position: (position of the outside edge of the wheel) extend an extra 54 mm

H_MED said:
+38
Click to expand...
Inner Clearance: (the inside of the wheel to the strut housing) 20 mm less
Outer Position: (position of the outside edge of the wheel) extend an extra 44 mm

Take a look at your current tires and see what you'd want for the outer position. I'm guessing either +28 or +38... +15 looks like it might be TOO aggressive...
 
Offsets have no impact on AWD system. If you're stock height you could run +15 without problems. If you're lowered, +28 works if you don't want to trim plastic on rear. +38 works but doesn't look as good.
 
shadow191 said:
Offsets have no impact on AWD system. If you're stock height you could run +15 without problems. If you're lowered, +28 works if you don't want to trim plastic on rear. +38 works but doesn't look as good.
Click to expand...
Wouldn't the +15 stick out a bit? I'm guessing +28 would be flush...
 
It might a little bit at stock height. When I sold my car, I dropped the offsets down to +20 for the new owner (on 10.5" wheels) and it didn't stick out. It was flush but my car was lowered so that cambers the wheel in a bit. At stock height, the wheel gap is so big it would be hard to notice the poke and it would look more aggressive. If dropped, it would camber in a little bit. But +28 would be fine as well.
 
I Would go +38 if you have no intention of ever lowering(even if you do you can play with spacers later on). If you plan on lowering you can go +28 without a problem but it will poke out very little at stock height.


Sent from my iPhone
 
I have the Ferrada FR3's I believe the offset is +38. It doesn't sit flush because of camber from lowering. 22x10.5 squared setup, I told the guy at the wheel shop that I wanted it flush even with the drop and he said this is the lowest offset ferrada would give them for our cars at that size. I wanted a deeper concave
 

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Most wheel companies will say that to avoid being blamed for any rubbing. +38 will never rub in any situation while the others might if you had say 5 passengers and hit a big dip in the road while turning - almost never happens but it could... Wheel companies would rather not deal with complaints like that so they go most conservative. When I got my 10.5" wheels, I had to put in writing I understood that +20 offset might rub and I was ok with that. They wouldn't sell me the wheels otherwise. It never rubbed on +20 on a first gen and even with spacers and +5 or +0 effective offsets, it only rubbed over big bumps while slammed.

Most wheel companies are way too conservative unless you're working with a custom wheel maker.
 
Yah I was disappointed because I wanted a certain look, still satisfied with my wheels though, but if a customer is willing to pay top dollar for a certain size they should get what they asked for regardless of the fitment they chose rubs or not. Just sign a waiver of some sort
 
You could easily put some spacers on it. On one piece wheels, the concavity is determined by width not offset so it's easy enough to space them out. I actually prefer the look of spacers if you're running aftermarket lugs when you have concave wheels. To get the higher offset, they machine off the backpad on the wheel (part that mates with hub). That means that if you run nice lug nuts, then they are exposed. If you get a lower offset wheel, the backpad is thicker and the lug nuts are sunken in. I discovered this when I got wheels that were both 10.5" but one pair was +35 and the other was +20. The lugs look much better on the +35.
 
FX808702: What size tires are you running?

Shadow191: Any pictures of your ride before it was sold?

I'm leaning towards 20x10.5 or 11.5 F&R 28+offsets
(295 45 20)
 
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