Tire Circumference - Cateye PADRONE CC-PA100W User Manual

Setting up the computer

Tire circumference

Tire circumference can be determined by either of the following two methods:
•
Measure the actual tire circumference (L)
After ensuring that the tire pressure is appropriate, sit on your
bike, roll it forward so that the tire makes one full revolution (use
the valve or other marking as a reference), and measure the dis-
tance traveled on the road.
•
Tire size chart
* The tire size or ETRTO code is indicated on the side of the tire.
Tire size
ETRTO
47-203 12x1.75
54-203 12x1.95
40-254 14x1.50
47-254 14x1.75
40-305 16x1.50
47-305 16x1.75
54-305 16x2.00
28-349 16x1-1/8
37-349 16x1-3/8
32-369 17x1-1/4 (369)
40-355 18x1.50
47-355 18x1.75
32-406 20x1.25
35-406 20x1.35
40-406 20x1.50
47-406 20x1.75
50-406 20x1.95
28-451 20x1-1/8
37-451 20x1-3/8
37-501 22x1-3/8
40-501 22x1-1/2
47-507 24x1.75
50-507 24x2.00
54-507 24x2.125
25-520 24x1(520)
24x3/4 Tubular
28-540 24x1-1/8
32-540 24x1-1/4
25-559 26x1(559)
32-559 26x1.25
37-559 26x1.40
40-559 26x1.50
47-559 26x1.75
50-559 26x1.95
54-559 26x2.10
57-559 26x2.125
58-559 26x2.35
L (mm) ETRTO
75-559
935
940 28-590
37-590
1020
37-584
1055
1185
1195 20-571
23-571
1245
25-571
1290
1300 40-590
1340 40-584
25-630
1340
28-630
1350
1450 32-630
1460 37-630
40-584
1490
50-584
1515
1565 54-584
1545 57-584
18-622
1615
19-622
1770
1785 20-622
1890 23-622
25-622
1925
28-622
1965
1753 30-622
1785 32-622
1795
35-622
1905
1913 38-622
40-622
1950
42-622
2005
44-622
2010
2023 45-622
47-622
2050
54-622
2068
56-622
2070
2083 60-622
6
L mm
Tire size
L (mm)
26x3.00 2170
26x1-1/8 1970
26x1-3/8 2068
26x1-1/2 2100
650C Tubular 26x7/8 1920
650x20C 1938
650x23C 1944
650x25C 26x1(571) 1952
650x38A 2125
650x38B 2105
27x1(630) 2145
27x1-1/8 2155
27x1-1/4 2161
27x1-3/8 2169
27.5x1.50 2079
27.5x1.95 2090
27.5x2.1 2148
27.5x2.25 2182
700x18C 2070
700x19C 2080
700x20C 2086
700x23C 2096
700x25C 2105
700x28C 2136
700x30C 2146
700x32C 2155
700C Tubular 2130
700x35C 2168
700x38C 2180
700x40C 2200
700x42C 2224
700x44C 2235
700x45C 2242
700x47C 2268
29x2.1 2288
29x2.2 2298
29x2.3 2326
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SET