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Mount stuff on your bike! Tent, mattress, clothbags... Whatever. This one fits on ordenary water bottle mounts and also Slasa's "Anything cgae" 3 point mount. You can also use clamps to mount it on any round tube. Clamps are avialble av well! Do you need a size of clamp not listed - just mail me and I put the new size up!
See also www.jed-design.com for more detalis, pictures etc.