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  1. #1
    mtbr member
    Join Date
    Nov 2018

    DT Swiss XM 421 or EX 471 for Heavier Rider and Bikepacking


    I'm wondering what everyones take on the weight capacity of these two tires for a bikepacking use. I weigh 180 and won't be riding on really aggressive trails. It'll be a mixture of gravel roads to singletrack. I plan on riding with a loaded bike probably 40-60 pounds of gear.

    Given that I'll be on a rigid bike, I would expect shock forces to be higher on the wheels than if I was on a suspension ride. While the system weight for myself and the bike + gear will be less than the stated system weight for the XM 421s, could shock forces push the rim closer to its limit? Without having to do an in depth analysis and if this were your bike, would you stick with the light XM rims or go for the burlier EX enduro rims?


  2. #2
    Bicycles aren't motorized
    Reputation: life behind bars's Avatar
    Join Date
    May 2014
    Opt for durability. 471 imho.
    Wanted, SRAM GX 2x11 rear derailleur

    It ain't supposed to be easy.

  3. #3
    This place needs an enema
    Reputation: mikesee's Avatar
    Join Date
    Aug 2003
    Which rims to choose is a function of which tires (brand, model, and size) you'll be running, and at what pressures. Also whether they'll be run tubed or tubeless matters.

  4. #4
    mtbr member
    Join Date
    Jan 2012
    The XM is All Mt. You don't need a DH rim for the speeds you'll be going loaded. . . .but you could benefit from wider tires than go on a 25mm inner rim. For 29 that's an EX 511 with 30mm inner. For 27.5 you can go wider if your frame will take wider tires. Most forks will. WTB has a good 35mm inner rim for 29s.

  5. #5
    mtbr member
    Reputation: yeti575inCA's Avatar
    Join Date
    Dec 2011
    Ex471 is a DH rim that's a reasonable weight. It's the same rim Gwin rode down a DH run when his tire rolled off..

    Sent from my SM-G930T using Tapatalk

  6. #6
    Reputation: changingleaf's Avatar
    Join Date
    Apr 2010
    For your intended purpose the heavier rim is a better choice.

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