.top{margin-bottom:30px;}.top li{margin-left:5%;margin-right:5%;margin-top:10px;line-height:120%;list-style-position:outside;} Modern 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 18 and 19-millimeter pistons driving 50% more power than Code. The 2-piece forged aluminum caliper features 18 and 19.5-millimeter pistons for best-in-class power Stiff 4-piston caliper with best heat management and easier bolt access Organic pads come standard for the best modulation and the quietest ride Designed for use with Maxima Mineral Brake Oil only for low maintenance and high-performance Compatibility: Maven requires the use of the new 20P-1 or 20P-2 brackets when a 20mm adapter is needed to accommodate a change to a larger rotor size. It is not compatible with the old post-mount 20P bracket. Otherwise, it is compatible with all existing SRAM brake hardware. When a 20mm adapter is needed, choose 20P-1 for 180mm rotors and 20P-2 for use with 200 or 220mm rotors.