Shifting on the treacherous trails has never been as seamless as with the shimano xtr m9020 double front derailleur this shimano derailleur features a whole host of new technologies that makes it a firm favourite of elite racers worldwide this front derailleur has been designed with modern trails bikes in mind and how to eradicate common irritants that riders may face shimanorsquos xtr side swing technology front derailleur increases tyre clearance by 15mm allowing manufacturers to continu