Math inept.Need help with tire size for Edge Evo

Discussion in 'General Discussions' started by backwoodscountryman, Jan 9, 2011.

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  1. Jan 9, 2011 at 6:32 PM #1
    backwoodscountryman

    backwoodscountryman Broken Truck Edition

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    OK so i am math inept.Its not my thing.Never has been.Also cant stand it,lol. So need help with the Edge's formula for correct tire size to input into my Edge.Thanks all

    Here is my size 315/70R17

    Instructions from the Edge Evo manual
    1. Multiply,width,ratio and 0.02
    2. Multiply rim and 24.4
    3. Add steps 1 with 2
    4. Multiply step 3 with 3.1416
    5 The result will be the circumference of your tire in mm

    Thanks all
     
  2. Jan 9, 2011 at 6:45 PM #2
    supercrewzn

    supercrewzn Full Access Member

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    I got 2688.58 mm
     
  3. Jan 9, 2011 at 6:47 PM #3
    supercrewzn

    supercrewzn Full Access Member

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    315 x 70 x.02 = 441

    17 x 24.4 = 414.8

    441 + 414.8 = 855.8

    855.8 x 3.1416 = 2688.58
     
  4. Jan 9, 2011 at 6:51 PM #4
    Northwoods4x4

    Northwoods4x4 BangBro

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    Ya, i got 2688.58mm too
     
  5. Jan 9, 2011 at 6:56 PM #5
    yz85rider2002

    yz85rider2002 Lowered Life

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    well what do you get for a 37x13.50r18?
     
  6. Jan 9, 2011 at 7:14 PM #6
    supercrewzn

    supercrewzn Full Access Member

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    I get 2888.39 greg. backwoods tire size is listed in millimeters. Yours is listed in inches. I converted your size to millimeters then did the math he posted.
     
    Last edited: Jan 9, 2011
  7. Jan 9, 2011 at 7:21 PM #7
    yz85rider2002

    yz85rider2002 Lowered Life

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    yeah im going to have to figure something out
     
  8. Jan 9, 2011 at 7:28 PM #8
    yz85rider2002

    yz85rider2002 Lowered Life

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    i got 2888.39 for mine. How do you go about entering that into the edge? do you have to enter just the first four digits or what?
     
  9. Jan 9, 2011 at 8:56 PM #9
    cowboy

    cowboy Sheriff

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    when you go to change the program level, select custom tire size. Use the up and down arrow to increase/decrease the value in mm
     
  10. Jan 10, 2011 at 10:21 AM #10
    backwoodscountryman

    backwoodscountryman Broken Truck Edition

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    Thanks bro.Awsome.Guess you can use focker out,lol.Ya math has never been my thing.I got tutor just for my college level math course next semester.This should be fun,lol.Thanks again man.
     
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