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  1. #1
    Senior Member ricohman's Avatar
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    Will I lose odo data on my Cateye Velo 8 when I try to change tire size?

    The new tires I bought are physically smaller so I am going to measure them and try and change to tire size on the Cateye.
    Will I lose the odometer data?

  2. #2
    aka Phil Jungels Wanderer's Avatar
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    Just write your mileage down on a peice of paper, and re-enter it when you are going thru the setup menu - really easy.

  3. #3
    Senior Member BCRider's Avatar
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    I'm pretty sure you have to remove the battery to reset the tire size. So yes you will reset your mileage.

    I guess I must be buying the cheaper ones. None of two or three I have can be set to start at the old mileage.
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    Read the instructions, probably availabe on the net.
    I use the Cateye Astrale and can change tire sizes without losing any data and without removing the battery.
    Measuring the tire is not a very accurate way to set the circumference value. Try multiple rollouts with your weight on the bike or ride known distances.

    Al

  5. #5
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    You can change the tire size calibration number anytime (or reset the clock for that matter) on any Cat-Eye with no effect on the odometer's mileage. Even replacing the battery doesn't reset the odometer if you do it reasonably quickly.

    As noted, you can reenter the odometer number during set-up which is useful if your cyclometer head dies and you need a new one.

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    Senior Member BCRider's Avatar
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    Nice to know. Mine are not Cateye models so I assumed that they were all the same.
    Model airplanes are cool too!.....

  7. #7
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    Quote Originally Posted by Al1943 View Post
    Read the instructions, probably availabe on the net.
    I use the Cateye Astrale and can change tire sizes without losing any data and without removing the battery.
    Measuring the tire is not a very accurate way to set the circumference value. Try multiple rollouts with your weight on the bike or ride known distances.

    Al
    Here. The pertinent information is below.


    How to Change Tire Size
    Display the Total Distance (Odo) and press the SET button to change the tire size. You can select a tire
    size in two ways: Either select from among preset sizes c or enter the tire’s circumference directly in
    increments of 1 cm.


    Setting the wheel diameter should never require resetting the computer...at least not on Cateye computers.
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    Can I restore my old odometer reading on a Cateye Velo 8 after changing the battery?

    Several posters indicated that after changing the battery of a Cateye Velo 8, you can restore the previous odometer reading. Anyone have the details on how that can be done?

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    No, you won't loose the odo data from a wheel diameter change or any other change like clock time. I've even changed batteries with out loosing the odo reading. However, you can reenter the odo value if you do a global reset or are slow with a battery change. Your owners sheet tells how.

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    Restoring the old odometer reading after changing batteries on a Cateye Velo 8

    Quote Originally Posted by HillRider View Post
    No, you won't loose the odo data from a wheel diameter change or any other change like clock time. I've even changed batteries with out loosing the odo reading. However, you can reenter the odo value if you do a global reset or are slow with a battery change. Your owners sheet tells how.
    I'm looking at the owner's sheet. I see detailed directions on setting tire size and clock setting but nothing about how to restore the old odometer reading. Other than when changing tire size, the only other time I see the odometer mentioned is in the Operation Flow section detailing the change from one mode to the next.

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    Quote Originally Posted by wayj View Post
    I'm looking at the owner's sheet. I see detailed directions on setting tire size and clock setting but nothing about how to restore the old odometer reading. Other than when changing tire size, the only other time I see the odometer mentioned is in the Operation Flow section detailing the change from one mode to the next.
    You cannot restore old odometer data but you should not lose old odometer data from the computer.

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    Quote Originally Posted by Al1943 View Post
    You cannot restore old odometer data but you should not lose old odometer data from the computer.
    It's definitely gone and all I did was change the battery and follow the set-up directions again after I put the new battery in. Thanks for the info.

  13. #13
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    Quote Originally Posted by Al1943 View Post
    You cannot restore old odometer data but you should not lose old odometer data from the computer.
    OK, on this particular model, which is the entry level Cat-Eye, you are correct, the ODO data cannot be reentered during set up. On most other Cat-Eye models (Mity, Enduro, etc.) you can reenter the ODO data during set up. The problem the OP had was probably because he did a "global reset" after he changed the battery. That wiped out everything and wasn't necessary.

  14. #14
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    Quote Originally Posted by HillRider View Post
    OK, on this particular model, which is the entry level Cat-Eye, you are correct, the ODO data cannot be reentered during set up. On most other Cat-Eye models (Mity, Enduro, etc.) you can reenter the ODO data during set up. The problem the OP had was probably because he did a "global reset" after he changed the battery. That wiped out everything and wasn't necessary.
    Can I assume that "global reset" happened when I hit the SET button after I changed the battery? Had I not done that, would all of the other data - odometer, tire size, etc. stayed current with the new battery?

  15. #15
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    Quote Originally Posted by wayj View Post
    Can I assume that "global reset" happened when I hit the SET button after I changed the battery? Had I not done that, would all of the other data - odometer, tire size, etc. stayed current with the new battery?
    All you needed to change was the tire circumference.

  16. #16
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    Quote Originally Posted by HillRider View Post
    OK, on this particular model, which is the entry level Cat-Eye, you are correct, the ODO data cannot be reentered during set up. On most other Cat-Eye models (Mity, Enduro, etc.) you can reenter the ODO data during set up. The problem the OP had was probably because he did a "global reset" after he changed the battery. That wiped out everything and wasn't necessary.
    On my Cateye Astrales I've never been able to find a way to reenter the cumulative odometer data. (Not talking about the trip odometer.)

  17. #17
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    You will lose all data and memory. You will not remember who you are.

  18. #18
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    Quote Originally Posted by Al1943 View Post
    On my Cateye Astrales I've never been able to find a way to reenter the cumulative odometer data. (Not talking about the trip odometer.)
    OK, so much for broad generalizations. My Astrale instructions don't give a procedure for reentering the ODO mileage either.

    So, on SOME Cat-Eye cyclometers you can reenter the odometer mileage after a complete reset and/or battery change.

    The way it's done on the Mity and Enduro models, and maybe others is:

    1. Press the mode, start-stop and set buttons simultaneously to begin the set-up procedure
    2. Select K or M (kilometers or miles) by pressing the mode button.
    3. Press and hold the mode button until a .0 flashes.
    4. Press the mode button as needed to obtain the desired digit in the tenths column
    5 .Press the start-stop button to change to the next digit and press the mode button as needed to get the desired figure.
    6. Repeat to set all of the digits up to XX,XXXX.X
    7. Press the Set button to continue to tire circumference setting, etc.

  19. #19
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    After a quick trip to the local bike shop, I was told that the Enduro I already had on my less-used mountain bike would do both things I was looking for--handle two bikes and allow me to manually enter the odometer miles. When I got home, I tried the Enduro in the Velo 8 hook-up I still had on my road bike. A spin of the wheel gave me readings right away. I programmed in both tire sizes and manually entered the old odometer miles. A ride to some of my nearest mile markers makes me believe the Enduro is working accurately for both speed and distance in the Velo 8 hook-up. By the way, HillRider, your directions for manually entering the odometer miles were much easier to follow than the ones that came with the Enduro. Thanks!

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