Operation Manual

Setting(s) of wheel size(s) (wheel
circumference)
Under“WheelSize1”or“Wheel
Size 2”, you should now enter the
wheel circumference of your bike.
This can be seen from the wheel
size data shown on the side of your
tyre.Pleaseconsultthetableshown
onP.45fortheappropriate4-digit
number.
Next press the MODE button until
such time as the appropriate digit
appears, then use the SET button
to move to the next digit. Once you
have confirmed the final digit, you
automatically re-access the “Set
Wheel” window. Should you wish
to make settings for a second bike,
press the SET button, otherwise
move to the “Clock” window by
pressing the MODE button.
Wheel size (mm) =
2 x r (mm) x 3,14
1 inch = 25,4 mm
Wheel Size (WS) Chart (wheel sizes / wheel circumference)
ETRTO WS mm
47–305 16x1.75x2 1272
47–406 20x1.75x2 1590
50–406 20/2.00 1593
60–406 20/2.35 1665
37–540 24x13/8A 1948
47–507 24x1.75x2 1907
50–507 24/2.00 1910
40–559 26x1.5 2026
44–559 26x1.6 2051
47–559 26x1.75x2 2074
50–559 26x1.9 2089
54–559 26x2.00 2114
57–559 26x2.125 2133
37–590 26x13/8 2105
20–571 26x3/4 1954
ETRTO WS mm
60–559 26/2.35 2146
32–630 27x11/4 2199
40–622 28x1.5 2224
47–622 28x1.75 2268
40–635 28x11/2 2265
37–622 28x13/8x15/8 2205
18–622 700x18C 2102
23–622 700x23C 2133
25–622 700x25C 2146
28–622 700x28C 2149
32–622 700x32C 2174
37–622 700x35C 2205
40–622 700x40C 2224
50–622 28/2.00 2284
60–622 28/2.35 2340
44
45