So here's my questions..what truely affects the concavity of a wheels? I'm buying wheels in 4 to 5 weeks and i'm questioning about how concave these wheels will be. Here are the specs for the Forgestar F14 on a V36 sedan...

front 19x8.5 +35
rear 19x10 +40
http://www.forgestar.com/v2/wheelsf14.php

In the first picture that is what i DO NOT want. I want MOAR concave


Tire sizes are pending, but they will be stretched so i do not mind running stretched tires. I asked one guy and he told me that the lower the offset the more concave it will be, but the Forgestar rep told me the wider the wheel the more concave it will be.

To break it down...
What really affects concavity?
I DO NOT WANT TO PULL FENDERS AT ALL.
Can anyone reccomend me good specs for the wheel?
Can anyone reccomend me good specs for the tires?

 

If your wheels are wider then the face of the wheel can dip in more for a more concave look. Also, if your offset is lower that means that there is a greater distance from the mounting surface to the outside of the rim. allowing for more concavity. The offsets do not directly affect the concavity. Thats all in the wheel design.

 

Depends on the wheel, some may change the "look" of concavity on offsets some are built that way regardless.

 

Hmm since these don't come with a lip, wouldnt offset affect concavity more?

 

Do 19x10 front and back.

If you plan to run stretched tires than do the 19x10 and go with a +25 offset front and rear.

You will not need to to pull the fenders and with the right drop you will camber enough to be nice and flush with a tiny bit of poke.

If you do the 8.5" front wheel it will not be concave.

 

No its just more metal added to the face, like a built in spacer.

 

If it's 19x10 all around what do you think about tire specs?

What about a 9.5(F) and 10(R)?

 

19x10 with a +25 offset will be flush for a coupe but aggressive for a sedan. If you have a sedan you might have to roll them suckers. Tire stretch go for 245/35 all around
we dont really know your taste? do you favor a staggered setup?

 

And offset doesnt have an affect on the concavity.
high offset= tuck inside fender
low offset= outside fender(aggressive stance)

But don't get a low offset on a car at stock height. It will be hella flush to the max LOL

 

The disk of the wheel change the concave of the wheel.. high disk have little to no concave.. low disk has more..

 

Not correct there. On a custom 3 piece wheel, offset will affect concavity along with width and pad height. On a cheaper wheel, the manufacture may only offer two options for wheel concavity.

Also, you should note that your offset analysis is only true if you are referring to the same width. A +10 on an 11 is going to be more aggressive fitting than -10 on a 9.

 

^^ Thanks for the note man. I didn't know

 

^^^ no worries. it can be confusing.

I think with all the fitment hype over the last few years, people are really confused and just assume negative offsets + camber + stretched tires.