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Custom Ultra VX-40 Framebag

(1 customer review)


See the Features Page for complete details of framebag features. Please note Dyneema 40 only comes in silver.


Ultra VX-40 is one of the most durable pack fabrics used for the most demanding backcountry environments. Commonly found on high-end mountaineering packs this material has durability that can exceed Cordura Ballistic nylon at 57% less weight. Please note Dyneema 40 only comes in silver.

Base features:

  • Durable #10 YKK zipper
  • Variable velcro attachment to the top tube near your stem. This allows compatibility with your choice of top tube bag, including the Rockgeist Cache bag.
  • If a horizontal divider is not chosen, large framebags at risk for leg rub will come with a small vertical divider.
  • Hydration/electronic access
  • Drain port

Free Options/Features: 

  • Hang loops at the top of your bag
  • Lace up to your top tube
  • Wedge comes with an external pocket on the rear spine

PhotoFit™ Template Creation: A strategic photo of your bike is used to build all Rockgeist framebags. PhotoFit™ offers several advantages over physical customer-traced templates. The most important advantage is that it eliminates template errors and helps avoid zipper stress, maximizing packing efficiency, and ensures strap compatibility with existing bags/frame features.

1 review for Custom Ultra VX-40 Framebag

  1. Dave Wright (verified owner)

    This is a great custom bag! Perfect fit in my frame, fairly light but solidly made to withstand overstuffing and time, and the silver color goes well with my Ti frame. I got the half framebag configuration, parallel to top tube slope at the rear and curved down toward the downtube at the front for a little more capacity. Touches top of a 28 ounce bottle on seat tube, but stays a little clear of the downtube bottle for riding access. Map pocket is perfect for phone and ride fuel. Internal pump hanging loops and drain grommet are good touches. Rockgeist positioned the downtube Velcro perfectly to be as low and secure as possible but not conflict with my exposed cables/guides. Trimmed the Velcro straps a bit for easier mounting. Bag was bought for an upcoming tour, but will be used whenever extra space needed or want to ride light instead of jersey stuffed on hot summer days. Thanks to Greg and the crew!

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Can you do a seat tube bolt-on too?
Absolutely. Please add that feature in the Framebag Extras category
What about a full bolt-on bag?
For sure, you can add the downtube bolt on here, and then head to the Framebag Extras category  to add the top tube and seat tube bolt on.

Please note, we CAN NOT do a flared nose and a top tube bolt on. Those two features do not play nice with each other.

For intl. orders, how much is Tax and Duty?
Please add your gear to your cart and select the “UPS Worldwide Economy” shipping option. You will then see the exact price of Tax and Duty at the checkout page. This is paid in full at checkout which allows your package to skip customs and be delivered right to your door.
Can you describe the features?
To see a discription and pictures of every feature please head to the Framebag Features page.