Accessories Bicycles Parts Specials Tools

Additional Cyclecomputer Calibration Procedures - Cateye

For newer models and other brands, go to our Cyclecomputer Database.


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by Sheldon "Buttons" Brown
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Our Cyclecomputer database is your starting point when looking for information on cyclecomputers. It links to owner's manuals for most cyclecomputers. Sometimes we had to work without a manual, or have additional information. It's on this page for Cateye computers.

Look for similarities in appearance and function when trying instructions for a computer not on our list. Many bicycle computers are rebranded. Please let us know of rebranded models which you have identified.

Old versions of manufacturers' Web sites preserved on the Internet Archive may list older models. A Web search on the make and model, plus "manual" or "instructions" sometimes turns up information posted by an owner. If you have information on a model not covered here, please send it in.

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Cateye Astrale

Calibration: F

Astrale owner's manual (Not for Astrale 8!)

Battery: CR2032 lithium

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Cateye Astrale 8

Calibration: F

Astrale 8 CC-CD200 owner's manual

Astrale 8 CC-CD200N owner's manual

Battery: CR2032 lithium

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Cateye ATC

Calibration: F

ATC owner's manual

Battery: CR2032 lithium

 
Entering "Set" mode:
  1. Use "MODE" to select screen "B" (distance, avs,tr/d)
  2. Use "START/STOP" button to select "STOP" mode
  3. Press "SET" button. Wheel calibration number will appear
Changing setting:
Use "START/STOP" button to advance number.
Exiting "SET" mode:
Press "SET" button.
Miles/Kilometers:
  1. Replace battery or press AC button (on back)-erases all data
  2. Use "START/STOP" button to select miles or kilometers
  3. Press "SET", re-enter wheel calibration number as above.

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Cateye Cordless CC-CL100

Calibration: C

Cordless owner's manual. Not the same as manuals for other Cordless and Wireless models!

Battery: 2 CR2032 lithium, one for computer, one for transponder

 
Entering "Set" mode:
  1. Use "MODE" button to select "ODO" mode.
  2. Use "START/STOP" button to select "STOP" state
  3. Press "SET" button. Calibration number will appear.
Changing setting:
Press "SET" to advance calibration number.
Exiting "Set" mode:
Press "MODE"

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Cateye Cordless 7

Calibration: F

Cordless 7 owner's manual. This is not the same manual as for other Cordless and Wireless models.

Battery: 2 CR2032 lithium, one for computer, one for transponder

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Cateye Kosmos

Calibration: F

Kosmos owner's manual

Battery: CR2032 lithium

 
Total reset:
Press AC button on bottom of unit.
Entering "Set" mode:
  1. Cycle mode setting until in "O" (odometer) mode.
  2. Press "Set" button with a ball point pen.
Changing setting:
Set the wheel circumference in mm using the Start/Stop button to increase number and Mode button to decrease number.
Exiting "Set" mode:
push the "Set" button.
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Cateye Mate

Calibration: C

Mate owner's manual

Batteries: 2 alkaline "AAA" cells. Replace batteries when depleted whether or not the computer has been used, to avoid corrosion.

 
Miles/kilometers selection:
switch hidden behind batteries.
Entering "Set" mode: Note, all data will be lost.
  1. Remove and re-install batteries. Display will show default wheel calibration number (216.)
  2. Press "SET" button.
Changing setting:
  1. Push "RESET" button to set the hundreds and tens digits.
  2. Push "ST./STOP" button to set units digit.
Exiting "Set" mode:
Push the "SET" button.
User notes:
Small picture of a bicycle in upper right indicates that unit is running. When unit is in "stop" state, neither trip mileage nor total mileage is recorded, but speed and maximum speed functions work.

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Cateye Micro

Calibration: C

Micro owner's manual

Battery: CR 2032 lithium

 
Entering "set" mode for total reset:
  1. Push all three buttons at once and hold for at least two seconds.
  2. Use "START/STOP" button to select "MILE/H" or "KPH"
  3. Press "MODE" button to enter "set" mode.
Entering "Set" mode to revise wheel size without losing mileage:
  1. Use "MODE" button to get to "ODO" mode.
  2. Use "START/STOP" button to put into "stop" state (mile/h symbol not flashing.)
  3. Press and hold both the "MODE" button and the "SELECT" button (underneath unit).
Changing setting:
Use the "START/STOP" button to alter the wheel calibration number.
Exiting "Set" mode:
Press the "MODE" button.
User notes:
Cadence function is selected by "SELECT" button, located on underside of unit. Maximum speed function is cancelled by use of cadence function. "MILE/H" or "KPH" flashes to show unit is running.

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Cateye Enduro, Mity, Mity 2, Specialized Speed Zone (old)

Calibration: C

Enduro owner's manual

Mity 2 owner's manual

Battery: CR 1620 or CR 1616 lithium

 
Entering "set" mode for total reset:
  1. Push all three buttons at once and hold for at least two seconds.
  2. Use "START/STOP" button to select "MILE/H" or "KPH"
  3. Press "MODE" button to enter "set" mode.
Entering "Set" mode to revise wheel size without losing mileage:
  1. Use "MODE" button to get to "ODO" mode.
  2. Use "START/STOP" button to put into "stop" state (mile/h symbol not flashing.)
  3. Press the "SET" button with a ballpont pen or similar tool. The calibration number will flicker.
Changing setting:
Use the "START/STOP" button to change the calibration number.
Exiting "Set" mode:
Press the "MODE" button.

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Cateye Enduro 2, Mity 3

Calibration: C

Enduro 2 and Mity 3 owner's manual

Battery: CR 2032 lithium

If you make a note of the odometer reading before changing batteries, you can re-enter the total distance reading after installing the new battery.
Entering "set" mode for total reset:
  1. Push all three buttons at once ("SET" button is recessed on bottom of unit.)
  2. Press "MODE" (right) button to enter distance scale selection mode.
  3. Use "START/STOP" (left) button to select "M" (miles) or "Km" (kilometers).
  4. Press "MODE" (right) button to enter "odometer setting" mode.
  5. Use "START/STOP" (left) button to change flashing digit.
  6. Press "MODE" (right) button to adjust next digit. as above.
  7. When odometer value is set to desired number, press "SET" (recessed) button to accept and enter wheel calibration mode.
  8. Use "MODE" (right) button to raise calibration number, or "START/STOP" (left) button to decrease it.

    Note: This unit permits the entry of two different calibration numbers ("A" & "B") to allow the same computer to be used with different bicycles

  9. When calibration value "A" is set to desired number, press "SET" (recessed) button to accept. If you hold the "SET" button for 2 seconds or more, you enter the mode to set the alternate ("B") calibration number.

Entering "Set" mode to revise wheel size without losing mileage:

  1. Use "MODE" button to get to "ODO" mode.
  2. Use "START/STOP" button to put into "stop" state (mile/h symbol not flashing.)
  3. Press the "SET" button with a ballpont pen or similar tool. The calibration number will flicker.
  4. Press and hold the "SET" button for 2 seconds to switch back and forth between "A" and "B" calibration value.
To select which weel calibration value to use:
When the "START/STOP" (left) and "MODE" (right) button are pressed together in "ODO" mode, first the wheel calibration number appears.

If these buttons are further held down for more than 3 seconds, the wheel calibration value moves between "A" and "B" values.

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Cateye Mity 8

Calibration: C

Mity 8 owner's manual

Battery: CR 2032 lithium
If you make a note of the odometer reading before changing batteries, you can re-enter the total distance reading after installing the new battery.
Entering "set" mode for total reset. Do this to clear the computer's memory after replacing the battery:
  1. Push all three buttons at once ("SET" button is on underside of unit.)
  2. Press "MODE" (top) button to select "mph" (miles) or "km/h" (kilometers).
  3. Press "MODE" (top) button for two seconds to enter "odometer setting" (total km/miles) mode.
  4. Use "START/STOP" (front) button to change which digit is flashing.
  5. Press "MODE" (top) button to adjust that digit.
  6. When total miles/km value is set to desired number, press "SET" (underside) button to accept and enter wheel calibration mode.
  7. Use "MODE" (top) button to raise calibration number, or "START/STOP" (front) button to decrease it.

    Note: This unit permits the entry of two different calibration numbers ("A" & "B") to allow the same computer to be used with different bicycles

  8. When calibration value "A" is set to desired number, press "SET" (underside) button to accept and put the computer into normal operation.. If you hold the "SET" button for 2 seconds or more, you enter the mode to set the alternate ("B") calibration number.
Modes:

Pressing the "MODE" button will cycle the computer through the modes:

  • Av (Average speed)
  • Dst (Trip distance 1 or 2)
  • Odo (Distance since total reset)
  • Mx (Maximum speed during trip)
  • Tm/clock (Elapsed time or clock time)

Settings may be changed in these modes as described below.

Entering "Set" mode to revise wheel size without losing mileage:

  1. Use "MODE" (top) button to get to "ODO" mode.
  2. Use "START/STOP" (front) button to put into "stop" state (mile/h symbol not flashing.)
  3. Press the "SET" (underside) button. The calibration number will flicker.
  4. Press and hold the "SET" button for 2 seconds to switch back and forth between "A" and "B" calibration value.
To set the clock time

Cycle through the modes until Tm or the clock is displayed. If Tm is displayed, press the MODE button for 2 seconds to display the clock time. Then press the "SET" button. The hour display will flash and can be changed using the "MODE" button, more quickly if you hold the button down. The "START/STOP" button will switch between setting the hour and the minute. The clock displays 24-hour time if the computer is set to record kilometers, and 12-hour time if to record miles. Press the "SET" button again to return to normal clock mode, and the "MODE" button if you would like to return to elapsed time mode. The clock does not know about daylight savings time: you will have to reset it manually.

To switch wheel size setting ("A" or "B"):

When "ODO" is displayed, press the "MODE" and "START/STOP" buttons at the same time to view the wheel calibration setting.

If these buttons are further held down for more than 3 seconds, the wheel calibration value moves between "A" and "B" values.

In other modes, you may press the "SET" button for two seconds at the same time to switch between "A" and "B" values.

You may revise the tire size in either "A" or "B" as described above.
Auto time or elapsed time

When Elapsed Time, Average Speed, Trip Distance 1 or 2 is displayed, then press the SET (underside) button to turn the [AT] icon to the right of the "A" or "B" display on or off. When on,, the computer records only riding time, and the icon flashes while it is being recorded; when off, you must press the START/STOP button to turn the timer on or off. This also turns recording of trip distance and average speed on or off.

To switch between elapsed time and clock time

When in Elapsed Time mode, press the MODE button for 2 seconds to switch to Clock Time mode, Press the MODE button briefly to return to Elapsed time mode.

Trip distance 1 and 2:

When in Trip distance (Dst) mode 1, press the "MODE" button for two seconds to switch to Trip Distance mode 2, and vice versa. These are reset independently, so you can use Trip Distance 2 to record segments within a trip, etc.

Resetting time, average speed and distance

When Elapsed Time, Trip Distance 1, Average Speed or Maximum Speed is displayed, press both the "MODE" and "START/STOP" buttons at once for 2 seconds to reset all of these to zero. When trip distance 2 is selected, pressing this combination resets only trip distance 2.

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Cateye Solar

Calibration: E (Miles) / F (Km)

Solar owner's manual

Batteries: 2 SR44 or MS76 silver batteries, available from camera shops. The special rechargeable batteries for this unit are no longer available.

Miles/kilometers:
After installing a new battery, use "SET" to select "KM/HR" or "M/HR".
This is only a label, the reading is unaffected.
To change reading between miles and kilometers, appropriate wheel calibration number must be entered.
Entering "Set" mode to revise wheel size without losing mileage:
  1. Use "MODE" button to get to "ODO" mode.
  2. Use "START/STOP" button to put into "stop" state (mile/h symbol not flashing.)
  3. Use a ballpoint pen or other pointed object to press the "SET" button (underneath unit). The wheel calibration number will be displayed with the first two digits flashing.
Changing setting:
The "START/STOP" button will advance the flashing digits.
The "MODE" button will select the last two digits, which can also be advanced by the "START/STOP" button.
Exiting "Set" mode:
Press the "SET" button again.

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Cateye Solar II

Calibration: F

Solar II owner's manual

Batteries: 2 SR44 or MS76 silver batteries, available from camera shops. The special rechargeable batteries for this unit are no longer available.
Entering "Set" mode to revise wheel size without losing mileage:
  1. Use "MODE" button to get to "ODO" mode.
  2. Use "START/STOP" button to put into "stop" state (mile/h symbol not flashing.)
  3. Use a ballpoint pen or other pointed object to press the "SET" button (underneath unit). The wheel calibration number will be displayed with the first two digits flashing.
Changing setting:
  1. The "START/STOP" button will advance the flashing digits.
  2. The "MODE" button will select the last two digits, which can also be advanced by the "START/STOP" button.
Miles/Kilometers:
  1. Replace battery or press AC button (inside battery compartment)- this erases all data
  2. Use "START/STOP" button to select miles or kilometers
  3. Press "SET", re-enter wheel calibration number as above.

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Cateye Vectra

Calibration: C

Vectra owner's manual

Battery: CR2032 lithium

 
Entering "Set" mode to revise wheel size without losing mileage:
  1. Use "MODE" button to get to "ODO" mode.
  2. Use "START/STOP" button to put into "stop" state (mile/h symbol not flashing.)
  3. Press and hold both the "MODE" button and the "AC" button (underneath unit).
Changing setting:
Use the "START/STOP" button to alter the wheel calibration number.
Exiting "Set" mode:
  1. Press "MODE" button.
  2. Let go of the "MODE" and "SELECT" buttons

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Last Updated: by Harriet Fell