Front left dual-piston disc brake Shimano Deore M6100, Brake Pads Metal G04S, with enhanced power and reliable braking performance in all conditions. It is equipped with Shimano's "Servo Wave" technology. The force you apply to the lever is multiplied at the caliper to further increase braking power. It can also be used with Shimano Ice-Tech pads and discs for even better performance. It also features an ergonomic 2-finger brake lever with lever angle adjustment.