Draven

First, I've been searching through old threads for about an hour and can't come up with definitive answers so if there IS a thread out there that answers all the wheel/tire combinations possible, I'd love to see it.

Stock C6 Rim Sizes & Offsets:
Non-Z51: 18X8.5/+56 w/245/40 (25.7 dia.) tires & 19X10/+79 w/285/35 (26.9 dia.) tires
Z-51: 18X8.5/+56 w/245/40 (25.7 dia.) tires & 19X10/+79 w/285/35 (26.9 dia.) tires

Aftermarket C6 Rim Sizes & Offsets (max):
Non-Z51:
Z-51:

Stock Widebody C6 Rim Sizes & Offsets:

Aftermarket C6 Rim Sizes & Offsets (max):

Someone help me fill in this information correctly and definitively! I'm shopping rims/tires for my '05 C6 and from what I've read, an 11" wheel on the back will stick out beyond the fender. 19x9.5 and 20x10.5 seem like the most common C6 aftermarket wheel sizes but I'm not sure of the correct offsets for those sizes. Help is appreciated, of if there is already a thread out there, that works too!

Knob Jockey

A list all of all of the possible tire/wheel combinations has never been posted here, at least I've never seen it.

Stock base model F/R is 18X8.5/+56 w/245/40 (25.7 dia.) tires & 19X10/+79 w/285/35 (26.9 dia.) tires

You can put 18X9.5/+53 w/275/35 (25.6 dia.) tires & 19X11/+79 w/325/30 (26.7 dia.) tires on the base car with no rubbing of the fenders.

I do not believe Z51 brakes are a problem but bigger Z06 brakes may be an issue with some wheel brands/models.

Front to rear tire diameter ratios need to stay relatively close to OEM to avoid AH intervention.

Tire diameters listed are as per the Tire Rack. A great resource for this stuff, by the way.

Draven

So if I'm reading this right, if I wanted to go 19x9.5+53 in the front and 20x11+79, it should fit, correct?

Knob Jockey

I don't know if the larger diameter wheels will still fit.

I just listed specs from wheels that are sold by Forum Vendors that are known to fit.

I'd call CCW and check wtih them. They always get it right and have many styles to choose from.

JUSTAC6

so this wheel should fit on a base model C6/non Z51??? i want to run a wider tire and if i dont have to spend the mullah on wider fenders that would be great.

here is what im looking at.

http://www.meanrims.com/incEngine/?n...uct=1030213210

sallen619

It'll fit the rear of the C6.

JUSTAC6

nice, 325 wide, super sport tires should help keep it stealthy.

haljensen

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

scully81152

With a base c6, I see a rear offset of 79 although I also see chrome wheels which were suppose to be take off'swith a 78 offset. Would the 78 offset work?

Bigwebb

hoping to move to a 11 inch rear this winter. I'm at 415whp now and with super sports they barely hang on. Planning to bump that about 60ish whp, so I definitely need to do something about the tires. Just debating whether or not to widen the stock rims or just buy new rims. I do love my gunmetal on atomic orange stick wheels.

I was was looking at a picture of a lemans blue c6 with some gorgeous gunmetal wheels. Looked almost like volk te37 but I don't think that's what they were. Anyone know the car I'm talking about and which rims those are by chance?

Alex Meza

Did you ever find out if the 78 offset would work?