Shimano Ultegra ST-R8170 12 Speed Dual Control Lever - Right Hand

The Shimano ST-R9270 Hydraulic Disc Di2 E-Tube Flat Mount Caliper Right Front is the pinnacle of road cycling performance. Featuring cutting-edge wireless Di2 technology for instant, precise gear shifts and Servo Wave Action braking for unmatched control and modulation, this top-tier DURA-ACE dual control lever combines lightweight design with advanced ergonomics. Designed for demanding conditions, it ensures effortless operation, optimal comfort, and reliable stopping power, making it an ideal choice for competitive and serious cyclists.

• High performance Ultegra Wireless hydraulic Servo Wave disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditions
  
• 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 synchronized 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 synchronized 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 when your hands are cold
  
• Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a 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

Specification:

• Speed: 12
  
• Shifter Style: Drop Bar
  
• Position: Right
  
• Type: Brake/Shifter Combo
  
• Clamp Band: 23.8-24.2