This is the shimano saint m820 hydraulic disc brakes ispec 2 compatible shimano saint m820 brakes are now compatible with the 2nd generation ispec the saint m820 has a high performance caliper with 4 ceramic pistons in two different diameters proving smooth and forceful braking when it matters most thanks to the ergonomic anti slip 15 finger brake lever and servo wave mechanism with short lever stroke this brake system is easy and comfortable to use super stiff 3 layer brake hose for a