Per TREK W524188 Staffa appendiabiti deragliatore posteriore Boone per disco Madone SL
Derailleur Gear Hanger For TREK #W524188 Boone Domane Emonda Madone. for Madone SL Disc (standard mount derailleur) - 2019. for Madone SLR Disc (standard mount derailleur) - 2019. for Boone (standard mount derailleur) - 2018-2019.