Wheel Circumference - VDO M2.1 WL Manual

Settings – wheel circumference
You can set the roll circumference of your wheel on the
VDO M2.1 WL.
The more accurate this setting, the more accurate your speed
indicator and the measurement of the distance you have
travelled.
You can find the values for your wheels in the wheel size table
and set these in the device.
If your wheel size is not listed in the table, you can accurately
measure the roll circumference.
This is done as follows:
STEP 1
Stand your bike up and position the front wheel so that the
valve is directly on the ground. Ensure that the tyres are fully
pumped up in accordance with the usage instructions. Mark
the position of the valve on the ground with a line or adhesive
strip.
STEP 2
Now push your bike forwards in a straight line until the valve
is back on the ground after one rotation.
Again mark the position of the valve on the ground with a line
or adhesive strip.
STEP 3
The distance between the two marks corresponds to your
wheel circumference or wheel size in millimetres.
1x
Wheel circumference in mm/inches
Tyre size ETRTO
16 x 1.75 47-305
20 x 1.75 47-406
24 x 1.75 47-507
26 x 1.5 40-559
26 x 1.75 47-559
26 x 1.9
26 x 2.00 50-559
26 x 2.10 54-559
26 x 2.25 57-559
26 x 2.35 60-559
26 x 2.40 62-559
28 x 1.5 40-622
28 x 1.6 42-622
28 x 1.75 47-622
29 x 2.10 54-622
29 x 2.25 57-622
29 x 2.40 62-622
650 B / 27,5
700 x 18C 18-622
700 x 20C 20-622
700 x 23C 23-622
700 x 25C 25-622
700 x 30C 30-622
700 x 32C 32-622
700 x 38C 38-622
M2.1 WL
KMH MPH
Wheel Wheel
circumference circumference
in mm in inches
1,272 50.1
1,590 62.6
1,907 75.1
2,026 79.8
2,070 81.5
2,089 82.2
2,114 83.2
2,125 83.6
2,145 84.4
2,160 85.0
2,170 85.4
2,224 87.6
2,235 88.0
2,268 89.3
2,295 90.3
2,288 90.1
2,300 90.5
2180 85,8
2,102 82.8
2,114 83.2
2,095 82.5
2,146 84.5
2,149 84.6
2,174 85.6
2,224 87.6
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