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Thread: The Ultimate TRUE TIRE SIZE Database

  1. #21
    Fresh Catch Lazer87's Avatar
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    Oct 2018
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    NV
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    1. Dick Cepek Fun Country

    2. LT315/70R17

    3. 30 psi

    4. 0 Miles

    5. 33 1/4"20190513_181710.jpeg

    Sent from my SM-G975U using JL Wrangler Jeep Forum mobile app

  2. #22
    Caught the Bug
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    37x12.5x17 KO2. 500 miles, 30 psi

    Not sure if I'm doing something wrong but all 4 measure only about 34-1/4" tall to the shoulder

    IMG_20190921_081210.jpg
    IMG_20190921_081141.jpg

  3. #23
    Meme King JTCO's Avatar
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    Quote Originally Posted by Toycrusher View Post
    37x12.5x17 KO2. 500 miles, 30 psi

    Not sure if I'm doing something wrong but all 4 measure only about 34-1/4" tall to the shoulder

    IMG_20190921_081210.jpg
    IMG_20190921_081141.jpg
    That's probably correct.
    Jeep JT GLADIATOR FORUM: www.JT-Gladiator.com

  4. #24
    Caught the Bug
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    Interesting enough, tire measured 34.25" but I had to set my Tazer to 36.5" to get the right speedometer reading

  5. #25
    Fresh Catch
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    Oct 2019
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    Chino
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    I have put on BFG KO2 285/75R17 tires. BFG specs say the diameter is 33.9 inches. What is the number I should put in Tazer?

  6. #26
    Fresh Catch
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    Oct 2019
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    CO
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    37 x 12.5 x 17 Nitto Ridge Grapplers
    New - 90 miles Mounted on Jeep with full weight
    30 P.S.I.
    35.25" high

    I used 35.5 in the Tazer and the Speedo is right on.IMG_2857.jpg

  7. #27
    Fresh Catch
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    Quote Originally Posted by idpagal View Post
    I have put on BFG KO2 285/75R17 tires. BFG specs say the diameter is 33.9 inches. What is the number I should put in Tazer?
    You want to take a true measurement and plug that number in then take it for a ride and compare to a GPS speed and adjust accordingly.

  8. #28
    Been Around the Block CalSgt's Avatar
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    Oct 2018
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    State of Jefferson
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    Quote Originally Posted by Zenman323 View Post
    You want to take a true measurement and plug that number in then take it for a ride and compare to a GPS speed and adjust accordingly.
    Thats what I did... Bought a speedometer app for about $2. Checked the speed on all of my vehicles.

  9. #29
    Been Around the Block scoobycarolanNC's Avatar
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    Mar 2018
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    Raleigh, NC
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    355
    BFG KM3 275/70r18
    34psi on the dash / 32 on arb deflator
    2500 miles
    31.25” (should’ve been 33.2)
    Attached Images Attached Images

  10. #30
    Hooked StormBreakerTheJL's Avatar
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    Jul 2019
    Location
    Colorado Springs
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    188
    IMG_0111.jpg

    Cooper STT Pro 37x13.5R17

    30psi

    1,000 miles

    35 1/8in

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