Shimano Ultegra TT/Triathlon dual control lever.

- Reduced drag through a more aerodynamic design
- Eliminated the switch box of ST-6871 to make the design smaller and shorter
- Intuitive shifting control
- Keep firm when shifting
- Single button on each side of the shift lever only works with Synchronized Shift
- 2x11-speed
- Average Weight: 138 g/pair