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  1. #1
    mtbr member
    Reputation: RoddyMcWolfenstein's Avatar
    Join Date
    Dec 2006

    Bontrager Big Earl 20mm Hubs w/ 9mm Fork?

    Looking at a set of Bontrager Big Earl wheels. The front has a 20mm through axle hub. Is there an adapter that exists that would allow me to use a standard 9mm QR fork with this hub?

    On another note - how are the Big Earl wheels? Would they be adequate for a 320# Clyde like myself? Mostly XC/AM type riding. Not really into drops and jumps.


  2. #2
    Former Bike Wrench
    Reputation: mtnbiker72's Avatar
    Join Date
    Jan 2007
    I believe those front hubs have adapters for a QR, check with your Trek LBS. Make sure the rear hub is 135mm and not 150mm.

    The wheels are plenty stout for your weight and riding style.

  3. #3
    mtbr member
    Reputation: RoddyMcWolfenstein's Avatar
    Join Date
    Dec 2006
    I found this, According to the Bontrager website:

    "20mm Front hub is convertible to 5mm QR applications with available end caps"

    Only problem is I can't find where to buy these end caps, they aren't even listed separately anywhere on the Trek or Bontrager website for purchase. I will give my local Trek dealer a call tomorrow to see, but it would be nice to just order a set online too. I suppose I could just find a 20mm thru axel fork, but trying to keep this build as inexpensive as possible. Most 20mm forks I have found are pricey.

    Anyone seen these end caps for sale anywhere?

  4. #4
    mtbr member
    Join Date
    Nov 2010
    How are they for running tubeless?

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