For the tubes on your bike rack are too large for a standard clamp, these accessory clamps will allow you to easily attach your QL3.1 Mounting-Set to your bike rack. For all models with the QL3 or QL3.1 system.
Specifications • Adapter: Quick-Lock3.1
Includes • 1 pair of tube clamps • Inserts for bike racks with tube diameters of 11 to 14mm