Designed for use with Avid and Sram disc brakes for the best possible performance Available in sintered w/ steel backing plate, organic w/ steel backing plate and organic w/ aluminum backing plate 3 Avid Elixir-1,3,5,CR,R/Avid XX/Avid X0/Sram DB1/DB3/Level/Level T/Level TL Sintered Avid Steel