Sram x5 10sp trigger shifter setexact actuation when sram launched their road technology from scratch they reapplied their mtb proven sram 11 actuation ratio shifter cable travel derailleur movement for 10 speed rear shifting exact actuation helps to simplifystabilize the uneasy act of balancing rear derailleur hanger design tight cog spacing and exact cable tension the result the easiest index shifting system to set up and it stays that way matchmaker compatiblesave weight and clutte