Wide link design dyna sys 10 speed deore mtb front derailleur top swing design wide pivot link design for greater torsional rigidity improves shifting response and service lifee type e type mounting system allows for perfect set up every time top pull designband on dual pull multi fit compatibility means that this front derailleur will fit any frame type or seat tube size cable routing can be used with frames built for top or bottom pull derailleurs dyna sys 10 speed mtb d