You want a bicycle pannier with a simple QL3.1 system, but your bike rack isn't outfitted with QL3.1 studs? No problem! The Mounting-Set allows you to conveniently attach your QL3.1 pannier to virtually any commercially available bike rack with a tube diameter of up to 10 mm. Simply attach the QL3.1 Mounting-Set to your bike rack, and you-re off to your next destination!