How to fix a derailleur hanger with or without alignment tool | Another bit of essential lockdown maintenance 🙌 A derailleur hanger (or mech hanger) is not a part most people are
![Watch: The Derailleur Hanger Alignment Tool is The Most Important Bike Tool You Don't Have - Singletracks Mountain Bike News Watch: The Derailleur Hanger Alignment Tool is The Most Important Bike Tool You Don't Have - Singletracks Mountain Bike News](https://images.singletracks.com/blog/wp-content/uploads/2018/03/derailleur_hanger_alignment_tool.jpg)
Watch: The Derailleur Hanger Alignment Tool is The Most Important Bike Tool You Don't Have - Singletracks Mountain Bike News
![Watch: The Derailleur Hanger Alignment Tool is The Most Important Bike Tool You Don't Have - Singletracks Mountain Bike News Watch: The Derailleur Hanger Alignment Tool is The Most Important Bike Tool You Don't Have - Singletracks Mountain Bike News](https://images.singletracks.com/blog/wp-content/uploads/2018/03/Gear-hanger-alignment.png)