Shimano FD-1050 is a front derailleur designed for use with double front chainwheels. It features a band-type or brazed-on type mount, a capacity for front gear difference of 3T~14T, and a stroke of 37-51mm. It allows for precise adjustment of the clearance between the chain and the chain guide, ensuring smooth and accurate shifting. The derailleur is compatible with various chainring sizes and is suitable for road bikes.