stumusic wrote on 08/26/08 at 06:44:10:That is the nominal size. Most manufacturers have a listing of the actual size of their tires as mounted on a specific width rim (and I assume properly inflated.)
Our rims are 19x2.15 front and 15x2.75 rear. That rear is a skinny rear for the size tires we use.
Our stock
IRC GS18: (tire size, measurement rim, width, diameter, w&d in inches)
http://www.irc-tire.com/mce/F: 100/90-19 M/C 57H 2.15 97 667 3.82 26.26
R: 140/80-15 M/C 67H 3.00 128 612 5.04 24.09
Metzeler ME880: (my downloaded .pdf available on request)
F: 100/90-19 TL 57H 2.50 108 674 4.25 26.54
R: 140/80-15 TL 70H 3.50 145 619 5.71 24.37
Dunlop D404:
http://www.dunlopmotorcycle.com/tirecatalog_tire.asp?id=37F: 100/90-19 57H 2.15 99 656 3.90 25.82
R: 130/90-15 66H 3.00 131 608 5.15 23.95
R: 140/90-15 70H 3.50 149 628 5.85 24.73
Maxxis Classic 6011: (data removed from web)
R: 140/90-15 WW 3.50 145 627 5.7 24.7
Bridgestone G701 http://www.motorcycle-karttires.com/glamourindex.aspx?productID=13&LookupID=24F: 100/90-19 2.75 124 653 4.9 25.7
Bridgestone G702 http://www.motorcycle-karttires.com/glamourindex.aspx?productID=14R: 140/90-15 3.50 147 635 5.8 25.2
Kenda Tires http://www.kendausa.com/motorcycle/street.htmlF: K657 100/90H-19 2.15 100 679 3.9 26.7
K671 100/90H-19 2.50 99 666 3.9 26.2
K673 100/90H-19 2.50 101 684 4.0 26.9
R: K657 130/90H-15 3.00 132 613 5.2 24.1
140/90H-15 3.00 145 629 5.7 24.8
K671 130/90H-15 3.50 135 610 5.3 24.0
K673 140/90H-15 3.50 145 632 5.7 24.88
Avon Venom http://www.avon-tyres.co.uk/motorcycle/?page=tyres&method=showspecs&id=1F: 100/90-19 57H 2.50 109 662 4.3 25.1
r: 140/90-15 76H 3.50 149 633 5.9 24.9
On the front the 100/90-19 can vary in width from 3.82" on a 2.15" rim to 4.9" on a 2.75" rim; and vary in diameter from 25.1" to 26.9" (both Kendas on a 2.5" rim!)
Three different sizes are acceptable on the rear, discounting rim width, from 5.04 to 5.9" wide and 24 to 25.2 inches in diameter.
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