DURA-ACE 50 tooth derailleur for FC-R9100 ( 11-speed ) cranksets. With special tooth shape for excellent shifting quality and speed for cranksets with Compact-Pro derailleurs 52/36 , for 11-wheel, using the best materials and technologies for high rigidity, light weight and highest shifting quality. HOLLOWGLIDE technology - hollow converter for maximum increase in crank stiffness.
Type: ROAD, Total pack weight: 200g, Number of teeth on derailleur: 52, Derailleur: 11 speed, For derailleur combinations: 52/36, Number of gears: 2x11, Derailleur spacing: 110mm, black
Shimano DURA-ACE. Engineering at its peak. Every single component has been designed to push unrivalled levels of performance to the limit when used together.