Shimano Ultegra ST-R8170 Di2 Hydraulic Disc Lever Left

Features

• High-performance Ultegra Wireless hydraulic Servo Wave disc brake Di2 STIs give control, modulation and power with minimal effort in all riding conditions
• Operates the front derailleur
• Wireless connectivity to the front and rear derailleurs for effortless trouble-free gear shifts
• With Di2 technology shifting is easy and precise – just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear
• Full and semi synchronised shifting programable
• Synchro shift compatible, meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences
• Semi synchronised shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio
• Simply pressing tactile buttons allows effortless and comfortable shifting even with cold hands
• Drop bar STI with shift buttons located in a near identical place to mechanical Shimano STI
• Hydraulic brake lever with Servo Wave provides excellent stopping power with less effort especially from the hood position
• Hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wear
• Finely tuneable reach adjusters for the levers enable custom fitment for all hands
• Levers use CR1632 batteries which last for approximately 1.5-2 years