The Malone(R) Top Tube Hanging Rack Adapter provides a removable temporary frame piece on bikes with step-through or other unconventional frame designs. Quick and easy to use, this adapter features one-button operation that opens locking gates that snap shut around the seat post and stem. In addition, the adapter has coated gates to protect your bike and an oversized telescoping shaft that fits most bikes. FEATURES: For use when the bike is required to hang from a carrier's horizontal arms Provides a removable temporary frame piece on bikes with step-through or other unconventional frame designs Easy one-button operation opens locking gates that snap shut around seat post and stem Coated gates protect bike's finish Oversize telescoping shaft fits most bikes Manufacturer's Limited Lifetime Warranty