I just purchased 4 cobalt ss 2007 wheels, I was wondering what size (width) tires can I put onto these rims with out affecting on the HHR 2009, and also give a great look to the HHR Panel.

 

Theres lots of feedback on this if you search the forums. The most accepted width is 225, just a little wider than stock and no clearance issues. Most say 235 will work well too.
Are the cobalt wheels 17" from the 2.4ss or 18" from the ss/sc? If they are the 18" I would go for 235/40/18 if you like wide tires as long as you dont drive through mud or snow with them.

 

Thank you for the information, I was thinking maybe 245/40/18 or 255/40/18 would 255/40/18 be too wide for this vehicle

thanks

 

I still have stock, so Im going off of what others have posted here. There are many threads if you do a search. I will be going for 235/40/18, it should be close to stock circumference and good for clearance all around.
The front has wider clearance than the rear, but the front struts will restrict the tire height. 255/40 might not make it.

 

Just Curious if You Plan On Lowering Your Ride ? If Not I Would Consider a 225 x 45 x 18 to Help Get Rid of the Wheel Well Gap !
(the above size also looks Good lowered to!)

Personally the 235 x 40 x 18 is a Great Size if You Will Be Lowering Your Panel but if Staying Stock Heidth will Look Strange with the "LARGE" Gaps !

Here's a Great Tire Size Comparison Chart for Ya:

http://www.rims-n-tires.com/rt_specs.jsp

Good Luck ,

 

Considering the differance in overall diameter between a 225/45R18 & a 235/40R18 is only .57'. And only half of that shows at the top, .285", I think calling it a "LARGE" gap is a little off.....

 

Personal Preference for Us Would Be to Give Up Some Width and Close Up the "LARGE" Factory Heidth Gaps with a Taller Sidewall Tire to Enhance the Side View of the Vehicle ! On Your Vehicle (In Which I Really Like) the Wheels You Purchased Had Tires on them Sized at 225 x 40 x 18's ! For Us the Gaps Can Be Reduced with the Same Tire in a 45 Series ! I Think the Majority of Owners Prefer a Smaller Wheel Well Opening than what GM Offers ! In This Scenario "Smaller" (GAPS) is Better (Personally), No Matter How Slight !

 

I have already planned to go with a 235/40 when I need tires. But the 225/40's that came with mine still have lots of tread left. The 235/40 is only .09" taller than my stock 215/55R16's. So the speedo differance is only off by .36%.

The 225/45 is .66" taller and takes the speedo off by 2.6%. Granted not much in either case, but I'd rather have the speedo as close as possible.

I'm not concerened about 1/4"-1/2" diffence in fender gap. My lowering days are long over. Plus my driveway would kill it....

 

Personally I don't know what all the hype is about putting Cobalt Wheels on an HHR?? There is nothing fancy about them to me, they're a rather plain factory wheel. I guess more people like them than I thought, but I'd rather go aftermarket. I think I may put my Wheel Vintique ralley's on

 

Value, Plus they are close looking to the stock polished, but just a little different. Can be had in 17" or 18". Don't have to worry about fitment or backspacing issues.

It's a lot easier to spend $50 on a set of wheels/tires verses $1000.....