Shimano Ultegra BR-R8170 Di2 ST-R8170 Disc Brake

The Shimano Ultegra Disc Brake with BR-R8170 Brake Caliper and ST-R8170 Di2 Shift/Brake LeverThe disc brake for the Ultegra road bike groupset from Shimano consists of the BR-R8170 and the ST-R8170. These are a flat-mount brake calipers for front or rear a