>>I looking for some advice regarding steel wheels to mount snow tires.
>>Volvo spare parts lists a 16" x 7" wheel. 3rd Party I am only able to
[quoted text clipped - 10 lines]
>with clearance between the inside of the rim and the outside of the
>brake caliper.
> It's a 2000 S80. I was under the impression that the rim diameter
> could affect the brakes but, not the width of the rim. I'm thinking
> that the .5" difference in the rim width should only make a minute
> change in the profile of the mounted tire.
Look at the specs from the tire manufacturer. They'll list an
acceptable range of rim widths for each one of their tires.
For example, this page on the Toyo Proxes FZ4:
http://www.toyo.com/tires/tire_specsheet.cfm?id=4
lists a minimum width of 6", design width of 7" and a maximum width of
7.5" for your size.

Signature
Mike F.
Thornhill (near Toronto), Ont.
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
Andrew Potter - 01 Nov 2004 23:11 GMT
The wheel offset is important to maintain lateral caliper to wheel
clearance. I think this is the issue that was being pointed out. As you
say, a narrower rim should not be an issue with regard to radial clearance.
In fact, you should have more clearance inboard around the suspension
providing the wheel offset distance is not reduced & this will ease the use
of snow chains if you plan to use them. Wheel offset is normally measured
between the centreline of the rim to the inside bolt face, but a check of
distance between outboard edge of caliper & inside surface of wheel is
effectively the same.
Andy P.
>> It's a 2000 S80. I was under the impression that the rim diameter
>> could affect the brakes but, not the width of the rim. I'm thinking
[quoted text clipped - 8 lines]
> lists a minimum width of 6", design width of 7" and a maximum width of
> 7.5" for your size.
I got my winter wheels by mail order from Tire Rack in Indiana (tirerack.com)
Their prices were good, service excellent. They also sell tires.