The size of your bike wheel is marked on both sides of the tire. The following table lists common wheel circumferences and their corresponding wheel sizes.
|
Wheel Size |
Circumference (mm) |
|
12 x 1.75 |
935 |
|
12 x 1.95 |
940 |
|
14 x 1.50 |
1020 |
|
14 x 1.75 |
1055 |
|
16 x 1.50 |
1185 |
|
16 x 1.75 |
1195 |
|
16 x 2.00 |
1245 |
|
16 x 1–1/8 |
1290 |
|
16 x 1–3/8 |
1300 |
|
17 x 1–1/4 |
1340 |
|
18 x 1.50 |
1340 |
|
18 x 1.75 |
1350 |
|
20 x 1.25 |
1450 |
|
20 x 1.35 |
1460 |
|
20 x 1.50 |
1490 |
|
20 x 1.75 |
1515 |
|
20 x 1.95 |
1565 |
|
20 x 1–1/8 |
1545 |
|
20 x 1–3/8 |
1615 |
|
22 x 1–3/8 |
1770 |
|
22 x 1–1/2 |
1785 |
|
24 x 1 |
1753 |
|
24 x 3/4 Tubular |
1785 |
|
24 x 1–1/8 |
1795 |
|
24 x 1–1/4 |
1905 |
|
24 x 1.75 |
1890 |
|
24 x 2.00 |
1925 |
|
24 x 2.125 |
1965 |
|
26 x 1–1.0 |
1913 |
|
26 x 1 |
1952 |
|
26 x 1.25 |
1950 |
|
26 x 1.40 |
2005 |
|
26 x 1.50 |
2010 |
|
26 x 1.75 |
2023 |
|
26 x 1.95 |
2050 |
|
26 x 2.00 |
2055 |
|
26 x 2.10 |
2068 |
|
26 x 2.125 |
2070 |
|
26 x 2.35 |
2083 |
|
26 x 3.00 |
2170 |
|
26 x 7/8 |
1920 |
|
26 x 1–1/8 |
1970 |
|
26 x 1–3/8 |
2068 |
|
26 x 1–1/2 |
2100 |
|
27 x 1 |
2145 |
|
27 x 1–1/8 |
2155 |
|
27 x 1–1/4 |
2161 |
|
27 x 1–3/8 |
2169 |
|
27.5 x 1.50 |
2079 |
|
27.5 x 1.95 |
2090 |
|
27.5 x 2.10 |
2148 |
|
27.5 x 2.25 |
2182 |
|
29 x 2.1 |
2288 |
|
29 x 2.2 |
2298 |
|
29 x 2.25 |
2281 |
|
29 x 2.3 |
2326 |
|
650 x 20C |
1938 |
|
650 x 23C |
1944 |
|
650 x 25C |
1952 |
|
650 x 35A |
2090 |
|
650 x 38A |
2125 |
|
650 x 38B |
2105 |
|
700 x 18C |
2070 |
|
700 x 19C |
2080 |
|
700 x 20C |
2086 |
|
700 x 23C |
2096 |
|
700 x 25C |
2105 |
|
700C Tubular |
2130 |
|
700 x 28C |
2136 |
|
700 x 30C |
2146 |
|
700 x 32C |
2155 |
|
700 x 35C |
2168 |
|
700 x 38C |
2180 |
|
700 x 40C |
2200 |
|
700 x 44C |
2235 |
|
700 x 45C |
2242 |
|
700 x 47C |
2268 |
If you are unable to determine your bike's wheel size, or you want to obtain a more accurate measurement by factoring in the impact of tire pressure and the cyclist's weight, you can manually measure the wheel circumference.
1. Start by drawing a straight line on the ground, or alternatively you could lay a rope on the ground in a straight line.
2. Select a visual marker (such as the air nozzle) on the wheel on which the HUAWEI S-TAG sensor is installed. Align it with the ground, and mark this as the starting point on the straight line or rope.
3. The cyclist should then ride the bike alongside the line/rope, until the wheel has completed one full turn and the marker is aligned with the ground once again. Mark this point as the end point.
4. Measure the distance from the start point to the end point on the straight line/rope. The distance is the circumference of the wheel. Measure the circumference several times and calculate the average value.