Shimano Dura Ace ST-9150 Di2 Road Bike rim brake lever shifters – 11 Speed. New and unused original equipment, to come with instructions and plastic e-tube connector only – no other packaging. 11speed rim brake Di2 brake levers. With Synchro-shift technology this 9150 Di2 lever automatically adjusts the front and rear derailleurs depending on what gear combination you have selected to ensure the most efficient chainline is achieved, perlonging the life of your drivetrain. Lightweight carbon composite hood. Improved, quicker, more positive shift. Multi-shift on / off option. Customisable to suit your preferences.