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 moreFront derailleur

Bicycle gear ratios – gear inches

Bicycle gear ratios - what they are, what a gear-inch is, what gear ratios are needed, what to look out for

Updated: 16/11/2018. This post explains what bicycle gear ratios are (often expressed in gear-inches), how they work, what are the needed gear ratio ranges etc.   1. How do bicycle gear ratios function? Bicycle is driven by transferring pedaling force to the rear wheel. When pedals are turned, front chainring draws the chain, which goes … Read moreBicycle gear ratios – gear inches