There's a flood of Direct Mount derailleur hangers at the Tour de France — but why? - CyclingTips
Why You Should Always Carry a Spare Derailleur Hanger | BETD Blog
Is this DIRECT mount or STANDARD (hanger) mount? Can I convert? | Mountain Bike Reviews Forum
Stripped new Shimano rear derailleur hanger bolt…it's snug in there but I want to know if I can replace it so I can maintain it in the future. Or am I out
What is a Mountain Bike Rear Derailleur Hanger and How to Fix it | DIY Mountain Bike