235/45-17
Thread Starter
Senior Member
Joined: 01-11-2011
Posts: 149
From: Ohio
235/45-17
I know this tire size fits the HHR well and is the correct diameter, but my question can you run this size tire on the stock 17x6.5" wheels? Most 235/45-17 tires have a recommended wheel width minimum of 7" or 7.5". Has anyone used the stock wheels with this size and did you have any problems?
Deceased
Joined: 06-30-2010
Posts: 25,739
From: Kannapolis NC
Here's the textbook answer for you....
"Correct rim width ensures flex at the designed flex point in a tire sidewall for optimum tire performance.
If the rim is too narrow, the flex point moves toward the shoulder area, creating heat buildup in the shoulder, which reduces tire life and could result in failure.
If the rim is too wide, the flex point moves towards the rim area, causing heat buildup in the lower sidewall, which reduces tire life and could result in failure."
So while a half inch isn't that great a departure from the proper rim width for the size you're considering, it can still shorten the service life of the tires or lead to tread wear issues.
"Correct rim width ensures flex at the designed flex point in a tire sidewall for optimum tire performance.
If the rim is too narrow, the flex point moves toward the shoulder area, creating heat buildup in the shoulder, which reduces tire life and could result in failure.
If the rim is too wide, the flex point moves towards the rim area, causing heat buildup in the lower sidewall, which reduces tire life and could result in failure."
So while a half inch isn't that great a departure from the proper rim width for the size you're considering, it can still shorten the service life of the tires or lead to tread wear issues.
