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Comparison of Dunlop D40M2 & SP8000
This is direct from the Dunlop "Full-Line Brochure" 3/95.
Amazing; but, the book has no copyright mark on it I can find.
Several of you requested this info so I'm giving it to you all. I only chose
sizes I thought would be of the most interest. Really intresting to me how
the same size tire from one manufacturer could be so different between models.
Gary Bergman, a wholesale tire distributor in Denver, among others has told
me the D40M2 is stiffer than the SP8000. I've run the 8000's on my 4kcsq in
205x50x15 at Second creek and I noticed they tended to roll over on the
sidewall. Course, I have stock suspension w/Boge TGas; but, did try boostng
pressure to nearly 50lbs. I really like the ride of the 8000's though.
D40 M2 Rim Sect. loaded rolling revs / tread
width width diam. radius circ. mile width weight
195x50x15 6.5 8.1 22.8 10.6 69.3 914 7.5 21.4
205x50x15 6.5 8.5 23.2 10.7 70.5 898 7.8 22.5
205x60x15 6.5 8.5 24.8 11.3 75.0 844 7.0 23.1
225x50x15 7.0 9.3 24.0 11.0 72.5 874 8.4 26.2
225x50x16 7.0 9.3 25.0 11.4 75.5 837 8.4 27.1
215x45x17 8.0 8.9 24.6 11.6 74.8 846 8.0 24.9
SP8000
205x50x15 5.5 8.1 23.1 10.6 69.9 906 7.2 21.4
205x60x15 Not available in SP8000
215x50x15 6.0 8.5 23.5 10.8 71.1 891 7.6 22.3
225x50x15 6.0 8.9 23.9 10.9 71.9 881 7.9 23.8
225x50x16 6.0 8.9 24.9 11.4 75.5 841 8.5 26.0
215x45x17 7.0 8.5 24.6 11.6 74.7 848 7.9 24.4
_______________________________________________________________________
Bruce Bell bbell@csn.net
Bruce Bell and Associates, Inc. Voice (719) 275-1661
P.O. Box 400, Canon City, Colorado 81215-0400 Fax (719) 275-1664