Stefan Frey
· 20.09.2025
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For my overnighter, I opted for the 6 litre full-frame version, which fits exactly into my hardtail frame. A total of eight Velcro straps and lashing straps secure the waterproof bag to the tubes. The individual straps can be positioned at several eyelets to find the optimum position for the respective bike. Velcro straps on the top tube provide support, while the remaining eyelets are fitted with self-locking straps. This allows the ADVT 900 Full Frame frame bag to be securely attached to the frame.
According to Decathlon, the bag is designed to be narrower in places where the thighs could come into contact with the bag to prevent friction. I still had to repack after a few kilometres because the bag was too bulbous and I was rubbing my knees against the robust material every time I stepped on it.
Otherwise, however, the inexpensive bag is cleverly designed: The zip is sealed and has a flap to keep water out. A separate exit allows you to route the drinking tube or a charging cable to the handlebars and there is a mesh pocket on the side wall to keep small items to hand.
If you have a little more space in the frame triangle, you can also opt for the 9-litre full frame bag. This also has a second zip access and a divider halfway up, which can also be removed thanks to the Velcro fastener.
Apart from the fact that the Rockrider bag should not be loaded too bulbously - which is generally the case with all frame bags - the bag impressed me with its firm fit and robust construction. The size is just right so that you don't lose track of things even when loaded. The separate side compartment and the covered outlet, which I used to charge my smartphone via a power bank while travelling, are particularly practical.

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