The all new trigger shifter from SRAM The Attack is Shimano compatible (1:2) & will fit easily on the handle bar with all makes of brake lever Available as seperate front indexed & rear 9speed shifters &8226;2:1 actuation ratio & Direct Route Technology for lighter effort shifting &8226; Proven trigger shifter performance &8226; Shimano compatible &8226;8/9-speed &8226; Weight: 260g (pair)