THIS RACK IS NOT NAMED AFTER THE FEATHERY FASHION ACCESSORY. BECAUSE THAT WOULD MAKE IT A SISSY MOUNT. IT�S ACTUALLY NAMED AFTER THE BOA CONSTRICTOR. SO YOU SHOULD FEEL EXTREMELY MANLY FOR OWNING ONE. UNLESS YOU�RE A WOMAN, IN WHICH CASE YOU SHOULD JUST FEEL SMART. Pivoting wheeltray enables it to fit any crossbar spread between 32� and 50�. Aerodynamic fork block fits round and square crossbars. Forks attach quick and easy to lockable skewer.