16
Installation
You will use the wheel size number when setting up the computer for
your machine. Use Method 1, 2 or 3.
Find the
circumference
of front wheel
by measuring
its diameter in
millimeters. Multiply
the Wheel Diameter
by 3.14. The result is your
wheel size.
On a flat surface, mark the tire sidewall and the ground with a marking
pen. Roll the wheel until the mark on the tire completes one revolution
and is back on the ground. Mark the ground at this location. Measure
the distance between the marks on the ground and convert the
measurement to mm (multiply inches by 25.4). Use this number for
your wheel size. For accuracy, the rider’s weight should be on the
bike when making this measurement.
Overview:
Method 1)
Easy Ruler
Method:
Method 2)
Rolling Measurements:
Wheel Size=
Wheel Diameter(mm)
x 3.14
Diameter(mm)
x 3.14
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