
Tirecircumferencecanbedeterminedby
eitherofthefollowingtwomethods:
•
Measuretheactualtirecircumference(L)
•
CheckETRTOcodeindicatedonthesideofthetire.
Appendix
1. Tirecircumference
ETRTO Tiresize L(mm) ETRTO Tiresize L(mm)
47‐203 12x1.75 935 37‐559 26x1.40 2005
54‐203 12x1.95 940 40‐559 26x1.50 2010
40‐254 14x1.50 1020 47‐559 26x1.75 2023
47‐254 14x1.75 1055 50‐559 26x1.95 2050
40‐305 16x1.50 1185 54‐559 26x2.10 2068
47‐305 16x1.75 1195 57‐559 26x2.125 2070
54‐305 16x2.00 1245 58‐559 26x2.35 2083
28‐349 16x1‐1/8 1290 75‐559 26x3.00 2170
37‐349 16x1‐3/8 1300 28‐590 26x1‐1/8 1970
32‐369 17x1‐1/4(369) 1340 37‐590 26x1‐3/8 2068
40‐355 18x1.50 1340 37‐584 26x1‐1/2 2100
47‐355 18x1.75 1350 650CTubular26x7/8 1920
32‐406 20x1.25 1450 20‐571 650x20C 1938
35‐406 20x1.35 1460 23‐571 650x23C 1944
40‐406 20x1.50 1490 25‐571 650x25C26x1(571) 1952
47‐406 20x1.75 1515 40‐590 650x38A 2125
50‐406 20x1.95 1565 40‐584 650x38B 2105
28‐451 20x1‐1/8 1545 25‐630 27x1(630) 2145
37‐451 20x1‐3/8 1615 28‐630 27x1‐1/8 2155
37‐501 22x1‐3/8 1770 32‐630 27x1‐1/4 2161
40‐501 22x1‐1/2 1785 32‐630 27x1‐1/4 2161
47‐507 24x1.75 1890 37‐630 27x1‐3/8 2169
50‐507 24x2.00 1925 40‐584 27.5x1.50 2079
54‐507 24x2.125 1965 50‐584 27.5x1.95 2090
25‐520 24x1(520) 1753 54‐584 27.5x2.1 2148
24x3/4Tubular 1785 57‐584 27.5x2.25 2182
28‐540 24x1‐1/8 1795 18‐622 700x18C 2070
32‐540 24x1‐1/4 1905 19‐622 700x19C 2080
25‐559 26x1(559) 1913 20‐622 700x20C 2086
32‐559 26x1.25 1950 23‐622 700x23C 2096
L(mm)