Using the included adapter, the Transit H-Bar fits most bicycle u-locks on the market; take out the adapter and it will fit large sized u-locks such as the New York Fahgettaboudit * Hook-n-loop straps stabilize the crossbar and shackle of u-lock or a locking head of a cable lock during transportation * 7" long anti-slip gasket protects handlebars from being scratched and allows for the carrier to be properly attached to the bars without slipping * Fits handlebars as small as 22mm and as large as 32mm * Fits lock crossbars from 20-50mm thick and shackles from 10-24mm thick