SRAM Maven Ultimate Disc Brake Caliper Assembly - Front/Rear, Post Mount, 4-Piston, Silver/Black, A1Modern mountain bikes have redefined what riders are capable of, pushing the requirements for heavy duty power further than ever before. Maven is SRAM's answer to that evolution, with monstrous pistons driving more power. Compatible with SRAM brake models: DB MVN BRZ A1, DB MVN SLV A1, DB MVN ULT A1 Hose sold separately 2 Piece forged aluminum caliper Stiff 4 piston caliper with best heat management and easier bolt access Organic pads come standard