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Ergon BX3 Backpack

Item #: BA242B09
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The BX3 from Ergon is a lightweight hydration pack, designed specifically for riding. Along with standard hydration pack features like integrated hose routing, the Ergon BX3 also includes a designated pump pocket and includes a rain cover and built in helmet carrier. The BX3 also features an advanced weight distribution strap system that is fully adjustable and self correcting, for a comfortable fit regardless of body shape.
  • 16 liter capacity, expandable to 19 liters using expansion zipper
  • Built in hydration bladder routing
  • Adjustable, self correcting shoulder straps
  • Vented 4 zone air circulation and load distribution back padding
  • Lower trapeze style support helps pull load closer to the body
  • Easy access, hip strap pockets
  • 4 position back length adjustment
  • Built in helmet carrier
  • Includes rain cover
  • Choose size Small if you wear T shirt sizes XS-S, choose size Large if you were T shirt sizes S-XL
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by PowerReviews
Ergon BX3 Backpack

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



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  • 1 Stars



Reviewed by 1 customer

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(0 of 1 customers found this review helpful)


Nice quality build

By Matt

from Milwaukee, WI

About Me Avid Cyclist

Verified Buyer


  • Lightweight
  • Versatile


    Best Uses

    • Commuting
    • Long Rides
    • Mountain Bikes

    Comments about Ergon BX3 Backpack:

    Ergon makes great stuff, and this bag seemed to built up very nicely. Quality fasteners, zippers, etc. all around, lots of adjustability, especially with the expansion zipper to add an extra 3L of capacity when you need it. Smallitem pockets are easy to access and plentiful.

    I can't speak for the comfort or ventilation of the back panel (seemed like it would work well) as I found a 19L bag to not be large enough for my commuting/gym needs, so I returned it before using it.

    If Ergon made a 25L bag, I would snap it up in a heartbeat. The material is pretty light weight (think tent style nylon) which saves weight, but not too sure how long it would last as a dedicated trail bag.

    • Was this a gift?:
    • No

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    Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.