SRAM X4 8 Speed Trigger Shifter SetThe X.4 line-up sets the standard for recreational level shifting. An intelligent blend of performance and value for MTB or pavement.Features: Ergonmics design platform 1:1 Actuation ratio Compatibility: SRAM 1:1 rear derailleurs, SRAM or Shimano front derailleurs New two-lever design modeled after SRAM’s highest performance trigger shifters New easy to read gear indicationSpeeds: 8Weight: 265 gramsBuy SRAM Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.