Featuring a tough, yet lightweight construction the X5 shifters are the go-to choice for a wide range of bike manufacturers. This is because they offer outstanding durability, value for your money & the feel of a component twice its price. Technologies: Exact Actuation™: When SRAM launched its road technology from scratch it reapplied its MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10 speed rear shifting. EA helps to simplify/stabilise the uneasy act of balancing rear derailleur hanger design, tight cog spacing & exact cable tension. The result: the easiest index shifting system to set up & it stays that way.