Shimano 105 ST-R7120 BR-R7170 Left Front Brake Kit: for the purest road cyclingShimano 105 2 x 12-speed STI ST-R7120 shifters with BR-R7170 flat-mount brake calipers for hydraulic disc brakes deliver exceptional deceleration performance and pure mechanical shifting pleasure for the purest road cycling  Brake Kit Left Front Shimano 105 ST-R7120 BR-R7170Shimano 105 2 x 12-speed STI ST-R7120 shifters with BR-R7170 flat-mount brake calipers for hydraulic disc brakes deliver exceptional deceleration performance and pure mechanical shifting pleasure for the purest road cycling Characteristics:- Additional 10% pad spacing reduces the chance of brake disc friction
- Simple purging process
- 12-speed mechanical dual control lever with updated ergonomics
- Light shifting operation lets you focus on the road
- New lever shape creates a shorter access curve allowing riders with a wide variety of hand sizes and shapes to comfortably reach the levers