Front derailleur

Bicycle front derailleur (FD). Types of front derailleurs, frame mount standards, FD compatibility...

Updated: 08/11/2018. Explanation of all the important facts related to bicycle front derailleurs. Contents: 1. How does the front derailleur work? 2. FD mounting to the bicycle frame …2.1. Direct mount system known as H0, or DM …2.2. E-type (also known as low direct mount, E2-type, S3, Spec 3) …2.3. SRAM S2 (Spec 2) …2.4. … Read more Front derailleur