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FS: 225/40/18 285/30/18 Michelin Pilot Sport Cup
03-15-2011 | 02:21 PM
#21
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From: Dallas
Searched around for you to find the answer and this is what HRE says about 285's on a 9.5" wheel
"That's pretty close... but what most people don't know is that a 19x9.5" wheel is really 10.5" wide overall.
The 9.5" meaurement is the tire industry standard, and it measures bead-seat to bead-seat dimension of the wheel- the tire companies are concerned with how the tire "beads-up" on the rim.
This dimension does not consider the bead flange thickness, typically 1/2" x two flanges (one towards the inside, one towards the outside of the wheel- the tire is mounted between them)- this gives you a 19x10.5 overall width.
That being said, a 9.5" is the minimum allowable wheel width for most 285 tires. A 10.0" is the 'optimal' width for most 285 tires.
It'll look a bit 'bulged out' on a 9.5", but it works.
Regards,
Bob"
http://my350z.com/forum/wheels-and-t...a-9-5-rim.html
"That's pretty close... but what most people don't know is that a 19x9.5" wheel is really 10.5" wide overall.
The 9.5" meaurement is the tire industry standard, and it measures bead-seat to bead-seat dimension of the wheel- the tire companies are concerned with how the tire "beads-up" on the rim.
This dimension does not consider the bead flange thickness, typically 1/2" x two flanges (one towards the inside, one towards the outside of the wheel- the tire is mounted between them)- this gives you a 19x10.5 overall width.
That being said, a 9.5" is the minimum allowable wheel width for most 285 tires. A 10.0" is the 'optimal' width for most 285 tires.
It'll look a bit 'bulged out' on a 9.5", but it works.
Regards,
Bob"
http://my350z.com/forum/wheels-and-t...a-9-5-rim.html