Yakima Whispbar WB200 Rooftop Fork Bike Mount - in stock now. FEATURES of the Yakima Whispbar WB200 Rooftop Fork Bike Mount Smart Mount fits road and mountain bikes, including those with QR15 and disc brakes QuickDock technology enables the easiest on/off of any mount in the market Integrated Lock System (ILS), one lock secures the equipment to the carrier and the rack Also fits round and square bars with included adapter