background image

3. Perform roll-out test (most accurate): See Figure 2.

STEP 1
Stand your bicycle upright. With your tire infl ated to its proper pressure, 
rotate your front wheel so that the valve is located at the bottom (6 
o’clock position). Make a mark on the fl oor to indicate the valve location.

STEP 2
Roll the bicycle forward in a straight line for one complete wheel 
revolution, until the valve is again at the bottom (ideally, you should be 
on the bike). Make a mark on the fl oor to indicate the valve location.

STEP 3
Measure the distance between the marks in millimeters 
(1 inch = 25.4mm). This value is your wheel circumference.

Program the Computer

Before using your F11C, you must program wheel size (see “Determine 
Wheel Size,” above), select a speed scale (miles or kilometers), set the 
odometer (if desired), input your weight and set the clock. The fi rst step 
is to select the speed scale. 

Select Miles or Kilometers, Program Wheel Size 
& Set the Odometer

The F11C is capable of displaying speed and distance information 
in either miles or kilometers. Also, the odometer can be set so 
that cumulative mileage can be restored after a battery change or 
transferred from another computer.

(SELECT MILES OR KILOMETERS)

STEP 1
Press the RIGHT button to advance to the Odometer display screen 
(ODO). In the Odometer display screen (ODO), press and hold the RIGHT 
button for three seconds. 

STEP 2
“km/h” or “m/h” will appear on the right side of the screen. Press the LEFT button to select miles (m/h) or kilometers (km/h).

STEP 3
Press the RIGHT button to confi rm your selection and advance to the wheel size setting screen.

(PROGRAM WHEEL SIZE)

STEP 4
After the speed scale has been selected, the computer will automatically advance to the fi rst wheel size programming screen ( 

1

 ). The digit at the 

right of the screen will fl ash. Press the LEFT button to adjust the fl ashing digit according to the wheel circumference value determined above. 
Press the RIGHT button to advance to the next fl ashing digit.

STEP 5
Repeat this sequence until the correct wheel size has been entered. Then press the RIGHT button to advance to the second wheel size setting 
screen ( 

2

 ).

STEP 6
The digit at the right of the screen will fl ash. Press the LEFT button to adjust the fl ashing digit. Press the RIGHT button to advance to the next 
fl ashing digit.

STEP 7
Repeat this sequence until the second wheel size has been entered. Then press the RIGHT button to advance to the odometer setting screen.

(SET THE ODOMETER)

STEP 8
After programming wheel size, the computer will automatically advance to the odometer setting screen. (If you don’t want to change the 
odometer setting, press the RIGHT button fi ve times to exit the set-up mode.) The digit at the right of the screen will fl ash. Press the LEFT button 
to adjust the value. Press the RIGHT button to advance to the next fl ashing digit.

STEP 9
Repeat this sequence until the odometer has been set to the appropriate value. Then press the RIGHT button to exit the set-up mode and return 
to the Odometer display screen.

16 x 1.75

20 x 1.75

26 x 0.75

24 x 1.75

24 x 1

1272

1590

1948

1907

1954

26 x 1.0

26 x 1.6

26 x 1.5

26 x 1

1973

2105

2026

2051

26 x 1.75

26 x 2

26 x 2

26 x 1.9

2070

2089

2114

2133

TIRE SIZE

CIRCUMFERENCE

1

/

8

3

/

8

3

/

8

27 x 1

28 x 1.5

28 x 1

28 x 1

28 x 1.75

2199

2224

2268

2265

2205

700 x 18c

700 x 25c

700 x 23c

700 x 20c

2102

2114

2133

2146

700 x 28c

700 x 40c

700 x 37c

700 x 32c

2149

2174

2205

2224

TIRE SIZE

CIRCUMFERENCE

3

/

8

1

/

2

1

/

4

1x

Distance in mm / inch

2

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