The Author 2AHG129901 bicycle derailleur hanger is a replacement part for the gears and is intended for use with SRAM, Campa, and older Shimano systems.

• Type: Bicycle derailleur hanger
• Bicycle part: Gears
• Compatibility: SRAM, Campa, and older Shimano systems
• Replacement part codes: A-HG155-2016, 2AHG129901, 2HG032-2S, 2HG032-S, FCM-032, B1185
• Compatible models: MY 2021 CHARISMA 55, 66, 77, Mystic ASL, Mystic 29, AURA XR3/ 4; MY 2020 CHARISMA 55, 66, 77, Mystic ASL, Mystic 29, AURA XR3/ 4/ 5; MY 2019 CHARISMA 55, 66, 77, Mystic ASL, Mystic 29, AURA XR3/ 4; MY 2018 CHARISMA 55, 66, 77, AURA 55 DISC, AURA XR; MY 2017 CA-TRI, CA-ROAD TT, Traction, Traction Asl, Traction 29, Instinct, Instinct Asl, Instinct 29, CHARISMA 55, 66, 77, AURA 44 DISC, AURA 55 DISC, AURA XR; MY 2016 CA-TRI, CA-ROAD TT, Traction, Traction Asl, Traction 29, Instinct, Instinct Asl, Instinct 29, CHARISMA 55, 66, 77, AURA 44 DISC, AURA 55 DISC; MY 2015 CA-TRI, CA-ROAD TT, Traction, Traction Asl, Traction 29, Instinct, Instinct Asl, Instinct 29, CHARISMA 55, 66, 77; MY 2014 CA-TRI, CA-ROAD TT, Modus, Modus 29, Master, Magnum 29, Traction, Traction ASL, Traction 29, Context, Instinct, Instinct ASL, Instinct 29, A-RAY 1.0/2.0, ERA 1.0, CHARISMA 55, 66, 66e, 77; MY 2013 CA 55, CA 66, CA66e, CA 77, CA 88, CA-TRI, CA-ROAD TT, Revolt 29, Sector 29, Modus, Master, Magnum, A-RAY 1.0/2.0, ERA 1.0; MY 2012 Modus, Revolt, Master, Sector, Introvert, Magnum, CA 55, CA 66, CA66e, CA 77, CA 88, CA-TRI, CA-ROAD TT; MY 2011 Modus, Revolt, Master, Introvert, Magnum, CA 5500, CA 6600, CA 7700, CA 8800, CA 9900, CA-TRI, CA-ROAD TT; MY 2010 Master, Introvert, Magnum, CA 7700, CA 8800, CA 9900, CA-TRI, CA-ROAD TT; MY 2009 CA 7700, CA 8800, CA-TRI, CA-ROAD TT; MY 2008 A6600, CA 7700, CA 8800; MY 2007 CA 7707