Advertise on Bikeforums.net



User Tag List

Results 1 to 9 of 9
  1. #1
    Registered User
    Join Date
    Jan 2004
    Location
    CT USA
    My Bikes
    Trek Madone 5.9SL
    Posts
    229
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    calculating cadence

    How do I calculate my cadence mathmatically......i need to improve it

    a little help

  2. #2
    Feed me your soul! Jakey's Avatar
    Join Date
    Feb 2004
    Location
    Salem, OR
    My Bikes
    Torelli 20th Anniversary, Trek 2000, Kona NuNu
    Posts
    3,019
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by auricpoe
    How do I calculate my cadence mathmatically......i need to improve it

    a little help

    http://www.performancebike.com/shop/...439&Store=Bike

  3. #3
    Registered User
    Join Date
    Jan 2004
    Location
    CT USA
    My Bikes
    Trek Madone 5.9SL
    Posts
    229
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have a computer and dont have money....wondering how to do it with a pencil and paper and maybe a calculator

  4. #4
    Senior Member djbowen1's Avatar
    Join Date
    Jul 2003
    Location
    NY
    My Bikes
    Cervelo Soliost
    Posts
    2,283
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Count pedal strokes for 15 seconds and multiply by four.

  5. #5
    Spinmeister
    Join Date
    Mar 2003
    Location
    Tempe,AZ
    My Bikes
    Scattante Carbon, Full Ultegra
    Posts
    623
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Simply count the number of complete revolutions you do in 10 seconds and multiply by 6. Once you know what cadence you want you start to remember how many revs in 10 seconds you should do. I spin so I know I normally need to do 18-20 revs in 10 seconds. There is no complex math to work out.
    "Training is what Iím doing while my opponents are sleeping in."- Bill Robertson

  6. #6
    Registered User
    Join Date
    Jan 2004
    Location
    CT USA
    My Bikes
    Trek Madone 5.9SL
    Posts
    229
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    sounds good...better than i thought.....thanks

  7. #7
    Senior Member
    Join Date
    May 2002
    Location
    Singapore
    Posts
    566
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Why don't go by the way "if it feels fast, it is fast"?? Lol, anyway, calculation is simple. If you need it very accurately, you will do it by counting the total revolutions in a minute. You can also count for 10s, multiply by 6 and get a +/- 6 error. Count by 15s, multiply by 4 and get a +/- 4 error. So it is up to you and good luck spinning.

  8. #8
    Senior Member Don Cook's Avatar
    Join Date
    Sep 2003
    Location
    Memphis TN
    My Bikes
    Raleigh, Benotto, Schwinn, Trek
    Posts
    817
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    auricpoe, here's the math for it.

    Where:
    SPD = speed in miles per hour
    WC = Wheel circumference in feet (decimal precision is your choice)
    GR = Gear Ratio (teeth on front chain ring divided by the teeth on rear cog)

    (((SPD/60)*5280)/WC)/GR

    This equation was derived from my gear ratio-cadence-speed spreadsheet. It will provide you an an accurate result. If you know your gear ratios (if not, calculate them) , and your wheel circumference, then for any given speed and gear combination your cadence wil be known.

  9. #9
    Senior Member Don Cook's Avatar
    Join Date
    Sep 2003
    Location
    Memphis TN
    My Bikes
    Raleigh, Benotto, Schwinn, Trek
    Posts
    817
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The Gear Ratio-Speed spreadsheet that was mentioned in the above post has been updated to include automatic cadence calculations. If you are interested shoot me an email with your return email. It's an Excel file created in MSOffice 2000.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •