Keep Pedaling
(888) 880-3811

Ergon BX4 Backpack

Item #: BA230B03
Found a Lower Price?
Availability In Stock
Choose ColorBlack
Choose Size

Tell a friend! We'll send your friends the page and your message.
Note: You and your friend's email addresses are only used once as a referral. We will not collect or store the email addresses.

Friend's Name:
Your Name:
Friend's Email:
Your Email:
(500 char. max)
Notify Me
Receive an email when this product becomes available.
Enter your name and email to be notified when this product is in stock and available to purchase.
First Name:
Last Name:

Ergon BX4 Backpack

The Ergon BX4 Backpack is an all-day adventure pack built with comfort in mind. The BX4 is made to fit just about anyone with a 4 stage adjustable back length feature that will keep the bag from feeling too big or small. Unlike traditional backpacks, the BX4 better distributes the load and keeps the weight close to the body to stabilize and minimize movement while riding. The BX4 also features automatic adjusting straps and Ergon’s Adaptive Carrier System to ensure the fit will be just right just all-day comfort. The automatic adjusting straps are made possible by two D rings at the top of the shoulder straps and the Adaptive Carrier System directly connects the two shoulder straps to the load-bearing bottom of the bag for some structural support underneath the load. Ergon chose a well ventilated contact padding which promotes air flow to keep your back cool and dry for additional comfort.

Aside from outstanding comfort, the BX4 features a well planned layout offering a 30 + 5 Liter load capacity and pockets on the hip straps for items you need to get to on the go. The BX4 has 4 compartments, including an external helmet / wet clothes compartments and a completely separate bladder compartment to put your mind at ease. To top off their offer, Ergon included a loop on the shoulder strap in allow a Topeak iPhone Drybag to be installed and added some HiLumen reflectors for night time visibility. Ergon is known for well thought-out comfortable designs and the BX4 is no different, offering a large capacity all-day hydration pack that will suite just about anyone’s needs.

Ergon BX4 Backpack Features

  • Capacity/Max Load: 30 + 5 Liters, max. 12kg
  • 4 Stage Adjustable Back Length
  • Adaptive Carrier System design and auto-adjusting straps for superior comfort
  • Improved Ventilation with SpacerFavric mesh back pads
  • Built in hydration bladder routing with completely separtely bladder compartment
  • Easy access, hip strap pockets
  • Available in 2 sizes: Small (up to 5'9") and Large (above 5'9")
Related Products
Topeak Quick Track Trunk Bags are compatible with ...
Chrome Bravo Bag The Bravo is one of ...

Jenson USA ships worldwide, including APO/FPO addresses. For a quote, simply add the items you are interested in to your shopping cart and look for the "Shipping Options" box. You don't have to login or create an account to see shipping charges.

Some manufacturers restrict where we can ship their products. If this item has shipping restrictions, they are listed below. If you'd like to buy an item that we cannot ship to your preferred address, we can accept your foreign credit card and ship to a USA address for you.

Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. 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

Email Specials

Sign up for our weekly specials delivered via email


Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

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.