20mm vs 35mm offset
 

I did my research and I think I do have basic idea of offset but I still dont quite get it of how it influance looks and stance.... Also Im trying to get new wheels and I keep seeing they're either in +20mm offset or +35mm offset... How are they diffrent in looks and fit? Please help me understand that concept.

there are plenty of sources out there that explain this.
Go to tirerack.com for a full explanation

You're missing a lot of variables. You didn't even mention how wide the wheels are.

If you're concerned about fitment - wheel width is very important. 18x8 +20 offsets not gonna fit like 18x10 +20 offset...not to mention the situation with tire sizes.

Another thing to consider is the Make n' Model of the wheel you're looking at. Different wheel companies abide by different rules. Some times the face of the rim will change according to the offset you choose...sometimes they don't. With my wheels the offset has nothing to do with the concavity of it. Then you also have to factor in if your wheels are 1, 2 or 3 piece wheels...because depending on the brand or model you choose you might also have an option of a different face or lip size/style depending on the offset.

Lots to consider and much homework to do.


Enjoy

I'm looking at XXR 527 18x8.5 all around with 245 tires on them. I dont know if I should go with +20mm or +35mm.... (Also will lower my car with Tein S)

get +35 and put 245s or 255s on them

Oh, and there is a "will it fit" sticky still ongoing. You could have posted your question there...

^+1 w/rev

that'll be the safest route. (this is assuming that you are looking to stay conservative with your overall stance/look).

You're gonna have to research how/if the offset affects the face of the wheel though...iirc, XXR's offsets are contingent to the face of the wheel.

Beautiful wheels, by the way. :)

I am running 18x8.5 with 35mm offset and 245 tires. Nice flush fit with no rubbing. Good combo.

https://www.rsracing.com/tech-wheel.html

Everything you need to know about offset and back spacing

thank you! very useful link!

Hi!!! This other calculator can compare what you have with what you plan to change. Hope it helps a bit more.

http://www.1010tires.com/tiresizecalculator.asp