Shimano deore m610 top swing 3x10 front mechwide link design dyna sys 10 speed deore mtb front derailleur intuitive dyna sys gear combination bring rider bike and trail together rider tuned fit various bike and riding style by choice of gear combination features top swing design wide pivot link design for greater torsional rigidity improves shifting response and service life multi fit compatibility means that this front derailleur will fit any frame type or seat tube size cable routing can