I have this bag on my back. The mounting system is genius and fits all my tools, spares, and some extra stuff. Also, my pump fits around the additional straps outside.
It’s possible to get the two small rail wing Velcro straps much tighter on the saddle rails, yours are too loose. When properly attached the bag doesn’t move at all, even with the large outer Velcro strap fully loosened, and the bag fully packed.
I have this bag on my back. The mounting system is genius and fits all my tools, spares, and some extra stuff. Also, my pump fits around the additional straps outside.
It’s possible to get the two small rail wing Velcro straps much tighter on the saddle rails, yours are too loose. When properly attached the bag doesn’t move at all, even with the large outer Velcro strap fully loosened, and the bag fully packed.