18x10.5 rims???

[81Elky]

I just ordered some Z06 corvette rims 2) 17x9.5 and 2)18x10.5 and the tires I can get pretty cheap are 275/40/18 for the rear, and yes I am getting spacers. Will these fit in the rear? From the specs compared to a 275/60/15, the 275/40/18 is smaller. They both have a section width of 10.82" but what is the actual width of the tire from side to side, the section width is just the tread width, correct?

I know you have to cut out the fender lip for some 275/60/15's

275/60/15 specs:

Section Width: 10.82 in
Rim Diameter: 15 in
Rim Width Range: 7.5 - 9.5 in
Overall Diameter: 27.99 in
Sidewall Height: 6.49 in
Radius: 13.99 in
Circumference: 87.93 in

275/40/18 Specs:

Section Width: 10.82 in
Rim Diameter: 18 in
Rim Width Range: 9 - 11 in
Overall Diameter: 26.66 in
Sidewall Height: 4.33 in
Radius: 13.33 in
Circumference: 83.75 in

I am just freaking out because I figured they would fit no problem but now I am having my doubts since I've already ordered them. Please help!

 

[Supe]

No, the section width is the width of the tire at its widest point on the sidewall.

 

[81Elky]

Thank you for the response, I will cut out the fender lips, mount the tires and set them in where I want them then measure for the spacers I will need, then post pics with them mounted. I'm surprised nobdoy had done this set-up yet.