Shimano 105 ST-R7120 Shift-Brake Lever w/BR-R7170 Brake Caliper

The 105 disc brake combines BR-R7170 caliper and ST-R7120 shift/brake lever for 2x or 12-speed shifting. It has 10% more pad clearance for quieter braking, plus powerful and controllable deceleration. One-Way Bleeding makes it easy to maintain. The two-piece aluminium caliper is light and fits any bike. The ST-R7120 shift/brake lever has a revised ergonomic design, reduced reach, and weighs 200g more than its electronic counterpart. 

Specifcications
Series: 105 R7100
Application: Road
Gearing: 2x, 12-speed
Shifting System: mechanical
Type: hydraulic, 2 pistons
Actuation: mineral oil
Hose: SM-BH90-JK-SSR
Hose Length (Front/Rear): 1000 mm / 1700 mm
Includes: Optislick cable, housing, hoses, and organic brake pads with Ice-Tech cooling fins.New lever design brings better control to a wider variety of riders

The SHIMANO 105 R7120 DUAL CONTROL LEVERS feature a revised lever position and bracket shape developed using data from a broad study of different hand shapes. That’s combined with the all-condition confidence of hydraulic disc brakes and the quick and intuitive shifting cyclists expect from SHIMANO 105.

Features
Mechanical 12-speed dual control lever with updated ergonomics
Light shifting operation lets you focus on the road ahead
New blade shape creates shorter lever access curve allowing riders with a wide range of hand sizes and shapes to comfortably reach their levers