Re: unsprung weight (of tires)

[ejfluhr@austin.ibm.com (Fluhr)]

FYI, regarding tire weights, here is some interesting info I pulled off
of Dunlop's website.  What I find particularly interesting is that the
A4 OEM sport-package tire weighs 2.6 lbs. LESS than the standard
205/55-16 SP8000 sold by Dunlop.


Dunlop SP9000      215/50-15     20.7 lbs.
                   205/55-16     21.4 lbs.
                   225/50-16     23.4 lbs.
                   215/45-17     21.2 lbs.
		   235/40-17     22.7 lbs.


Dunlop SP8000      215/50-15      n/a lbs.
                   205/55-16     23.4 lbs.
		   205/55-16 91W 20.8 lbs.  (Audi A4 OEM)   <---<
                   225/50-16     26.0 lbs.
                   215/45-17     24.4 lbs.
		   235/40-17      n/a lbs.

Dunlop D60A2       205/60-15     20.0 lbs.
		   205/55-16     21.7 lbs.
		   225/50-16     25.1 lbs.

Dunlop W-10        205/55-16     21.8 lbs.
		   215/45-17     22.0 lbs.
		   235/40-17     24.2 lbs.


So, for the urquattro at least, a 215/45-17 tire appears to weigh about
1/2 of a pound more than a 215/50-15 for the SP9K series.  It also seems
that the 16" tires (excepting the Audi OEM SP8K) weigh slightly more
than the 215/45-17, which may be a consideration for those deciding
between 16" versus 17" wheels.

Later,
Eric
'85 CGT, '82 urq
---
Eric J. Fluhr                                Email:  ejfluhr@austin.ibm.com
High End Processor Design                    Phone:  (512) 838-7589
IBM Server Group                             Austin, TX