Specifically designed to carry tandem bicycles. It comes ready assembled & the lightweight alloy construction makes it easy to handle. The quick release frame clamp can be adapted for various frame sizes.Key Features:Tandem bike carrier,Universal fitting,Anodised aluminium bike carrier - lightweight but very strong,Fits round and oval downtubes from 7 to 70mm,TUV tested and approved,Fully adjustable wheel positioners,Use on roof bars up to 100 mm wide,100% Manufactured in Italy..