Speaking of tires, did I screw up?

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Nov 7, 2004 | 11:50 PM

#26

purple82

Absolute Power is Awesome

Joined: Mar 2001

Posts: 1,973

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From: Issaquah, WA

Quote:

Originally Posted by Blake

First, the "nominal" (named) size is not actual size. So, a given "205" tire may be wider or narrower than another "205" tire. This is important for fitting purposes as the experience of one person with a given width tire of one brand is not always reliable with respect to the same nominal size tire of another brand.

It's true that not all tires with the same width rating are the same width, but it's going to be very close. The "205" or "185" is a measure of the widest part of the cross section of the tire when mounted to a wheel at some set pressure. It's not a measure of the tread width. So when the tire is mounted to the wheel, any 205 shoud be bretty consistant with any other 205 for a certain tire pressure and wheel width.