SRAM and Shimano front-derailleur types and mounts explained - BikeRadar
Mountain bike front derailleur compatibility - Bicycles Stack Exchange
How to Adjust a Front Derailleur - YouTube
Amazon.com : Front Bike Derailleurs 3 Speed Clamp On Top Bottom Pull Front Derailleurs Compatible with top or Bottom Routing for Mountain Bike Road Bicycle MTB BMX with Adjust Clamp Size 31.8mm
How to adjust and set-up a front derailleur: Pro tips and step by step guide - YouTube