Shimano Ultegra 6870 Di2 11 Speed Rear Derailleur Size_3XS This 11 Speed Rear Shifter BR10-ATR / U16 G2 the rims provide excellent Color:Matt Black Gear Hangers

This 11 Speed Rear Shifter from Shimano features technology influenced by Shimano's high-end models

Better distribution of handlebar tightening: The clamp that replaces the traditional cover also has another very important advantage: the handlebar clamp is much more homogeneous and powerful than with a cover held in place by 4 screws that do not always have the same clamping depth (number of threads engaged) or the same torque

Compatible with Ultegra FC-6603 chainsets

Locking system: Ortlieb Quick Lock 2

A Nike Swoosh is an iconic finish

Shimano Ultegra 6870 Di2 11 Speed Rear Derailleur Size_3XS This 11 Speed Rear Shifter BR10 ATR U16 G2 the rims provide excellent Color:Matt Black Gear Hangers This 11 Speed Rear Shifter from Shimano features technology influenced by Shimano's high end models Better distribution of handlebar tightening: The clamp that replaces the traditional cover also has another very important advantage: the handlebar clamp is much more homogeneous and powerful than with a cover held in place by 4 screws that do not always have the same clamping depth (number of threads engaged) or the same torque