Note: Measure the wheel circumference (WS) before you specify it. It
can be measured as follows:
• Note the selected size of the wheel and refer to the table below to
find the appropriate circumference.
• Mark a point on the desired bicycle tyre and push the bicycle
forward till the tyre rotates once. The wheel circumference is the
distance covered.
Ensure that the wheel circumference is precise because this greatly
affects the accuracy of the measured data.
An example for measurement method 1:
Wheel circumference table
Tyre average value
20 inch 40-406
20 inch 54-406
24 inch 47-507
24 inch 54-507
26 inch 25-559
26 inch 40-559
26 inch 50-559
24
Wheel circumference value (in mm)
1530
1590
1860
1920
1940
2000
2040
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