Delta Cycle Bicycle Substitute Cross Bar Adaptor EXTRA STRENGTH Substitute adaptor from Delta Cycle Creates a TOP TUBE for non-conventional frames For use with "HANG ON" type car rack QUICK RELEASE clamps instantly adjusts to correct size for carrying "Y" frames or other unusual frames on common car racks Sturdy construction with THICK RUBBER COATING to protect bike's finish Distance between hooks max 32.25" min 23"