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Thread: cateye setting

  1. #1
    Senior Member DLBroox's Avatar
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    cateye setting

    Anyone set up a cateye wireless for Kenda Kwest tires 20 x 1.25? Looking for the number to enter without actually having to figure it out myself!

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    Senior Member bhkyte's Avatar
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    Sheldon brown for heavens sake.

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    Senior Member kamtsa's Avatar
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    Quote Originally Posted by DLBroox View Post
    Anyone set up a cateye wireless for Kenda Kwest tires 20 x 1.25? Looking for the number to enter without actually having to figure it out myself!
    I am using Kojak tires (ERTRO 35-406) and setup my Cateye Strada Wireless for 1500.

    I compared it yesterday with GPS tracker of my phone and the strada has 5% miles more than the phone.

    BTW, the manual and the wheel table is here if it helps:

    http://www.cateye.com/sites/cateye/u...W_ENG%2Bv3.pdf

    Kam

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    jur
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    Here ya go: 406mm + 2*1.25*25.4mm = 470mm; pi*407 = 1475mm.
    My folding bike photo essays www.dekter.net/

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    Senior Member DLBroox's Avatar
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    Cool, thanks Jur!

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    Senior Member kamtsa's Avatar
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    Quote Originally Posted by jur View Post
    Here ya go: 406mm + 2*1.25*25.4mm = 470mm; pi*407 = 1475mm.
    Thanks Jur. I did not know that the Strada units are in mm.

    How did you determine that the tire height height on each side is 1.25"? Is it the same as its width? I would expect it to be about the half of the width.

    Kam

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    Bicycling Gnome
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    It's easy to do a roll out.

    1. Put the bike on a flat surface.

    2. Make a chalk mark on the ground and the tyre where the tyre contacts the ground. Do it in the middle of the contact patch.

    3. Roll the bike forward until the chalk mark on the tyre is again in the centre of the ground contact patch, but one wheel revolution further forward.

    4 Make another mark on the ground at the centre of the contact patch.

    5. Measure the distance between the two marks on the ground.


    Job done. Any wheel. Any tyre. No tables needed. Just measure and mark carefully and use a thin chalk to get accurate marks.



    If you have no chalk, just use the tyre valve as the reference point on the wheel and place a matchstick on the ground at either end of the wheel roll out.
    Last edited by EvilV; 06-11-09 at 02:46 AM.
    “Get a bicycle. You will not regret it, if you live." - Mark Twain

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    jur
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    Quote Originally Posted by kamtsa View Post
    Thanks Jur. I did not know that the Strada units are in mm.

    How did you determine that the tire height height on each side is 1.25"? Is it the same as its width? I would expect it to be about the half of the width.

    Kam
    Height is about the same as width measured from the bead seat. It's close, gives about a 1% accuracy from what I checked on my own bikes. I always use the rollout method given above by EvilV but have always been surprised at how close the calculated amount comes (I'm an engineer, see, we measure with a micrometer, mark off with chalk and cut with an axe).
    My folding bike photo essays www.dekter.net/

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    Bicycling Gnome
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    Quote Originally Posted by jur View Post
    ........but have always been surprised at how close the calculated amount comes (I'm an engineer, see, we measure with a micrometer, mark off with chalk and cut with an axe).
    I thought you'd use a chainsaw for cutting now we are in the twenty-first century. It's cool as long as you remember which side of the line you have to cut to.

    “Get a bicycle. You will not regret it, if you live." - Mark Twain

  10. #10
    Senior Member rbrian's Avatar
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    Quote Originally Posted by EvilV View Post
    It's cool as long as you remember which side of the line you have to cut to.

    Usually the other side.
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  11. #11
    Senior Member wink's Avatar
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    Quote Originally Posted by EvilV View Post
    It's easy to do a roll out.

    1. Put the bike on a flat surface.

    2. Make a chalk mark on the ground and the tyre where the tyre contacts the ground. Do it in the middle of the contact patch.

    3. Roll the bike forward until the chalk mark on the tyre is again in the centre of the ground contact patch, but one wheel revolution further forward.

    4 Make another mark on the ground at the centre of the contact patch.

    5. Measure the distance between the two marks on the ground.


    Job done. Any wheel. Any tyre. No tables needed. Just measure and mark carefully and use a thin chalk to get accurate marks.



    If you have no chalk, just use the tyre valve as the reference point on the wheel and place a matchstick on the ground at either end of the wheel roll out.
    + 1 Do what the man says and you will be pretty darn close. I use 1504 for my 20x 1.5 Kwest.

  12. #12
    Senior Member kamtsa's Avatar
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    Quote Originally Posted by wink View Post
    + 1 Do what the man says and you will be pretty darn close. I use 1504 for my 20x 1.5 Kwest.
    Try 2500. You will be amazed how it speed up the bike.

    ;-)

    Kam

  13. #13
    Bicycling Gnome
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    Quote Originally Posted by kamtsa View Post
    Try 2500. You will be amazed how it speed up the bike.

    ;-)

    Kam


    I need to try that.
    “Get a bicycle. You will not regret it, if you live." - Mark Twain

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