Shimano FD-7403 is a front derailleur designed for precise and smooth shifting. It features a low adjustment to set the chain guide inner plate to the smallest gap possible without contacting the chain, ensuring optimal shifting performance. The derailleur also has a top adjustment to set the chain guide outer plate to the smallest gap without contacting the chain. Additionally, it includes a guide spring adjuster to select the cable and secure the front derailleur after initial stretching of the cable.