105 ST-R7120 Brake/Shift Lever Combination Double x 12-Speed with BR-R7170 Disc Brake (Front or Rear)

With the R7100 series, SHIMANO is also giving the 105 groupset its 12th gear and thus taking its best-selling road bike groupset to the next level.

The revised ergonomic design of the SHIMANO 105 R7120 DUAL CONTROL shift/brake lever fits a wide range of hand sizes and shapes, while reducing the distance from the brake handle to the lever. This improves leverage and allows for better control with less effort.
In this way, the clever developers of the Japanese industry giant skilfully combine the weather-proof safety of disc brakes with the fast and intuitive shifting quality that is typical of the SHIMANO 105.

Details:
Mechanical DUAL CONTROL 12-speed shift/brake lever with revised ergonomics
Revised ergonomics facilitate access to the lever, thus allowing for a comfortable grip with a wide range of hand sizes and shapes
Excellent shifting performance and constantly high braking performance, even in bad weather
ONE WAY BLEEDING for quick and easy bleeding
J-KIT DIRECT version (see note!)

Technical details:
Intended use: Road bike
Compatibility: 12-speed / double
Material: aluminium, composite, steel
Brake lever: ST-R7120 (front wheel: left lever / rear wheel: right lever)
Brake calliper: BR-R7170 (Flatmount, 2-piston system (resin), flat design)
Brake hose: SM-BH90-J-SSR, SM-BH90-JK-SSR
Brake fluid: SHIMANO mineral oil
Adjustable free stroke: no
Lever reach adjustment integrated (with tool)
Hose length: 1000 mm (front wheel); 1700 mm (rear wheel)
Brake pads: L05A-RF (with cooling fins), organic
Weight brake levers: approx. 612 g (pair)
Weight brake calliper: approx. 123 g (piece)

In the box:

Either

1 SHIMANO 105 ST-R7120-L STI shift/brake lever (double, front wheel, left)
1 SHIMANO 105 BR-R7170 Flatmount brake calliper (incl. 1 set of brake pads and adapter for 160 mm brake disc)
1 SHIMANO SM-BH90 brake hose (1000 mm)
1 SHIMANO gear cable

or

1 SHIMANO 105 ST- R7120-R STI shift/brake lever (12-speed, rear wheel, right)
1 SHIMANO 105 BR-R7170 Flatmount brake calliper (incl. 1 set of brake pads and 25 mm mounting bolt)
1 SHIMANO SM-BH90 brake hose (1700 mm)
1 SHIMANO gear cable

Please indicate your choice.  

Tip:
For the recommended SHIMANO SLX SM-RT70 Centerlock brake discs see product code:
SHIMANO SLX SM-RT70 brake disc incl. lockring (internally splined) (prod. code: 2234568)
SHIMANO SLX SM-RT70 brake disc incl. lockring (externally splined) (prod. code: 2313818)

Note:
J-KIT DIRECT version: Filled ready for mounting and bled for easy cutting and routing of the hose. Olive pre-installed in brake lever, insert pin in hose. If you want to cut the hose, make sure to insert a new insert pin.