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BX3 Evo stealth

The mountain bike pack day long adventures or the daily commute. The innovative “Adaptive Carrier System” holds the load close to the body, keeping it stable. The BX3 is available in 2 sizes to fit a variety of rider sizes. The self-correcting shoulder straps keep the pack centered on the rider‘s back. The 4 position back adjustment allows every rider to find the perfect fit and comfort. The BX3 has a capacity of 16 liters with the ability to expand to 19 liters. Features include a main stoarage compartment, bladder compartment, rain cover, helmet retainer, front and side pockets, and internal organization compartments. For added visibility HiLumen reflectors have been added.
Price $ 129.95(Without VAT**)
€ 119,95(With VAT**)


  • Maximum riding fun even with a full backpack
  • Best wearing comfort even on long rides
  • Brilliantly thought-out pockets


Perfect fit for every back

One size fits all. With the completely revised 4-way adjustable carrying system, the back length of the pack can be easily adjusted to fit sizes S to XL.

Ergon BA2 backpack with 4-way adjustable carrying system.

Adaptive Carrier System

The „Adaptive Carrier System“ distributes the load compression ergonomically to the rider. This allows the pack to sit close to the rider’s body during every maneuver on the MTB. The self-adjusting, harness support pulls the lower part of the backpack over the shoulder straps to the body, making the fit ergonomically ideal for the anatomy of every rider. Additionally, the hip belt can be shortened to the desired length as required.

Ergon BA2 E Protect backpack with Adaptive Carrier System.

Ergonomically shaped aluminum rail

The pre-shaped, flexible aluminum molded rail allows the pack to sit ergonomically against the back. This plate can be fine-adjusted at anytime with little effort.

Ergon BA2 backpack with flexible aluminium shaped rail.

Self-adjusting shoulder straps

The free moving, adjustable Ergon shoulder straps optimally follows the body shape of each rider. A special load compression guarantees a stable connection of the pack, even at the lower back. With aluminium D-rings the construction is particularly robust.

Ergon BA2 backpack with self-adjusting shoulder straps.


  • RoadBIKE
    “Once you have found the right setting, the adjustable carrying system of the BX3 fits like a glove and follows every movement. Impeccable, durable workmanship.”

    – RoadBIKE 07/2019, grade: “very good“ / 81 points”

  • Mountainbike
    “Sits like a glove, follows every move. Impeccable, durable manufacturing.”

    – MountainBIKE 05/2019, grade: “very good”

  • LifeVerde.de Das Grüne Magazin
    “The „Adaptive Carrier System“ is a special feature of the BX3. It provides load compression with the shoulder straps. The equipment carried along is thus transported close to the body and stable.”

    – LifeVERDE.de 04/2018


Accessibility at its finest

Ideally arranged pockets and compartments

The pack is divided into a fleece lined, foldable inner pocket, a pump pocket and a 3 liter bladder compartment. There are also two large front pockets with mesh inner pockets, two large elasticated hip pockets for quick access and a zipped pocket for its included rain cover.

Ergon backpack BX3 Evo with many practical inside pockets.

Back Cushion

Comfortable and ventilated

Comfortable padding ensures maximum comfort at the contact points and provides optimal air circulation, which contributes to excellent ventilation of the back.

Ergon BX2 Evo backpack with comfortable back padding.

Strap for Full Face Helmet

Safe and secure

The Ergon BX3 Evo offers a strap for attaching a half-shell or full face helmet. In addition, the Sport Camera Chest Mount, sold separately, can be fixed with mounting loops.

The front flap of the Ergon BX3 Evo offers additional storage space outside the backpack.

Hip Belt with Pockets

Comfortable load distribution

The wide hip belt distributes the load comfortably and relieves strain on the shoulders. It contains two elastic zipper pockets, perfect for your mobile phone, keys or other small items allowing for easy access at all times.

Ergon backpack BX3 Evo with practical hip belt.


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Technical Specifications

BX3 Evo
All-Mountain/Trail, MTB-Touring
Shoulder Straps
One Size Fits All
15 + 3 Liters l
Nylon, Polyester
$ 129.95(Without VAT**)
€ 119,95(With VAT**)

**Price can vary by country.

Adaptive Carrier System

Ergon BA and BX Series

Ergon shoulder straps, featuring load compression, stabilize and support the pack weight from the bottom.

Traditional Backpack

With traditional shoulder straps the backpack hangs from the straps. The load being carried is unstable and moves while riding.

Perfect Fit Backpack

  1. Exact fit can be achieved through the 4-Step back adjustment.
  2. Self-adjusting shoulder straps stablize the load, which is supported at the lower back.

Contour Fit Aluminium Bar

Body-specific adjustment to form tot he rider can be made by the moldable aluminum bar.

Size Guide: Ergon Backpacks

Custom fit is also important when fitting a backpack to the rider. Ergon backpacks are available in two sizes to fit various rider sizes, have a four-back length adjustment, self-adjusting shoulder straps, the load-compression “Adaptive Carrier System” and a customizable aluminum lower back mold rail. The size of the backpack is determined based on body size and clothing size.

Body Height: < 175 cm/5.9" > 175 cm/5.9"
T-Shirt Size EU: XS–M L–XXL
Shoulder Straps: Small Large