cat eye

Discussion in 'Beginners' started by roadiewill, 8 May 2008.

  1. roadiewill

    roadiewill New Member

    you know when you set up a cateye computer, how do you know the exact wheel dimensions? The old cateyes just used to have like 25 inch, 36 inch etc but this one has about 30 different ones.
  2. Make a mark on your tyre/wheel/floor - roll forward until a revolution has been completed, mark floor and measure the distance between?
  3. Smeggers

    Smeggers New Member

    Or read off the size from the tyre wall and cross reference it with the Cateye manual.

    You download the manuals from their site.

    Thaz what I did anyways.
  4. Dayvo

    Dayvo Just passin' through

    Does the same apply to Sigma computers?
    I can't make head nor tail of mine! :ohmy:
  5. stephenb

    stephenb Über Member

  6. tdr1nka

    tdr1nka Taking the biscuit

    Are you allowed to draw on the floor at home Aperitif?:ohmy:
  7. HJ

    HJ Cycling in Scotland

    Auld Reekie
    I put a tape measure on the floor with the valve next to the start of the tape, then rolled the bike forward the valve was at the lowest point again and read off the distance...
  8. Plax

    Plax Veteran

    If you have a Cateye Enduro 8, let me know what your wheel size is and I'll tell you what your magic number is.
  9. hodsgod

    hodsgod New Member

    That's the best way in my opinion. Mine has never been exactly the same figure as th emanual either.
  10. Keith Oates

    Keith Oates Janner

    Penarth, Wales
    Measuring one rotation of the wheel on the floor is the best way, but if you really want to be accurate you should also sit on the bike with your weight slightly compressing the tyre as this affects the wheel/tyre diameter!!!!!!!!!!!!!!!!!!!!!!!!
  11. Danny

    Danny Legendary Member

    My Cateye came with an instruction sheet which had a table showing the settings to use for most combinations of wheel and tyre size.

    Provided you know these I don't think you have to measure anything.
  12. OP

    roadiewill New Member

    i just set it to 26 x 23mm that'll do
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