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Thread: 12mm Thru-Axle?

  1. #1
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    New question here. 12mm Thru-Axle?

    Basically, I'm looking for my first full-suspension bike, and I've been considering many different entry-level options.

    One of the options I'm seriously considering is the Diamondback Sortie 29er.

    I know DB isn't generally considered a bona-fide high-end brand since they all have big-box store models, but I like the look of the sortie because it is the only entry-level priced full suspension bike I've found with Fox fork and shock.

    The fork on the Sortie 1.0 has a 9mm QR and the Sortie 2.0 has 12mm thru-axle.

    // You can skip everything above unless you want background to the question

    QUESTION: Would a 12mm thru axle provide enough benefit over a QR to justify upgrading?

    INB4 "Just go with a better bike": I have a pretty strict budget. It's entry-level FS or sticking with my hardtail, so I'm looking at entry-level.

  2. #2
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    I like them but I change wheels four times a week, so it just makes my life easier that way.... but in all honesty I've been riding 9mm QRs since the beginning of time and the only thing I noticed is that you don't need to hold the QR nut.

    Stiffness: 7-8 percent better on the 12mm
    Lightness: a dozen grams lighter than the 9mm

    that's my 2 cents!

  3. #3
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    Thanks for the quick reply. I could definitely see the advantages of going to the thru axle if it were a 20mm, or even a 15mm, but I was just curious if it was really that much of a difference sine it is only a 12mm.

  4. #4
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    Quote Originally Posted by SpecialWarr View Post
    I like them but I change wheels four times a week, so it just makes my life easier that way.... but in all honesty I've been riding 9mm QRs since the beginning of time and the only thing I noticed is that you don't need to hold the QR nut.

    Stiffness: 7-8 percent better on the 12mm
    Lightness: a dozen grams lighter than the 9mm

    that's my 2 cents!
    Is your "7-8 percent" based on empirical evidence, or are you just saying that?

  5. #5
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    Ok I am confused. Front fork is listed as 9mm QR or 15mm thru axle. Rear is listed as a 12mm??? If you are debating QR vs. thru axle no doubt go for the thru axle.

  6. #6
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    Re: 12mm Thru-Axle?

    I've never heard of a 12 millimeter thru axle in the front.
    I think you're confusing the rear axle with the front axle.

  7. #7
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    The 7-8 percent is empirical. I have a dyno that I put together some years ago that I used to use to test cranks that I've rebuilt to test suspension deflection.

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