Grn4fbody

iTrader: (2)

So I'm ordering a custom set of Forged wheels and I'm lost on "Offsets"

I read over the sticky and if anything it only confused me more than I already was.

I'm gonna order a set of 17X9.5 and 17X11 wheels. My car has a factory length rear end and is factory height (for now), I bought the car with 11inch wide ZR1's (I'm not sure if they were GM or replicas) so it's had the BFH mod on it and I don't want to roll the fender at all!

So whats the difference? I do want to run 315's on the back (DR's) and 275's on the front.

Donohue96M6Z28

iTrader: (64)

The lower offset, the further out the wheel will sit. The higher the offset, the more it'll sit in the wheel wells. I'd do A 45mm on the rears and roll the fenders.

Grn4fbody

iTrader: (2)

I'm not rolling the fenders

VinR1

iTrader: (17)

Then get 50mm offset (same as your ZR1s)

38mm in front will look best

Grn4fbody

iTrader: (2)

So what will stick out farther? The 50's or the 56's

VinR1

iTrader: (17)

50mm will stick out more - lower the offset, more it will stick out

Donohue96M6Z28

iTrader: (64)

Did you read my post?

Grn4fbody

iTrader: (2)

Yes I did, I think I got it now. I think I'm gonna go with a 47 or 50

rudytirerack

http://www.tirerack.com/wheels/tech/...jsp?techid=101

Grn4fbody

iTrader: (2)

Is there a write up on how to find the offset you need without a wheel? I should of done this before I sold my old wheels off.

carlos64030

iTrader: (5)

Dooood... you're making this waaaaay more difficult than it should be. There's like a bajillion threads on here with tons of pictures of different wheels, sizes and offsets. Simply browse through the pictures, pick something you think looks good, then send a PM to that person asking him what the specs are on his wheels.

carlos64030

iTrader: (5)

Oh yeah... I forgot to post this:

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

VinR1

iTrader: (17)

Serious

Take half the width of the wheel you're looking at, minus 3.5. Convert the answer to mm and thats the offset you need

11" ZR1. Half is 5.5 minus 3.5 equals 2in. Converted to metric is just a hair over 50mm