Road Bike Direct-mount Derailleur Hanger Shadow Rear Derailleur Hanger For Giant Cannondale Trek Disc Rim Brake Tcr Defy Super6 - Bicycle Derailleur - AliExpress
James Huang on Twitter: "Direct-mount rear derailleur hangers are very rare on consumer-spec road bikes, but they're on more than half of the Shimano-equipped bikes at the Tour. Why? https://t.co/jN22raSFiH https://t.co/fRukDgnYPP" /
SEKA Derailleur Hanger
gears - Do I have Direct Mount or Hanger Mount? - Bicycles Stack Exchange