Without wires or cables, SRAM were able to design a simpler way to shift. Now, the intuitive simplicity of SRAM RED eTap is available with the added performance of hydraulic road disc brakes (HRD). The SRAM RED eTap HRD shift-brake control offers the world’s first wireless drivetrain with the most advanced HRD platform yet, HydroHC. Simpler shifting, better braking — all in the name of true advancement.
Utilizing 128-bit encryption, eTap shift signals are transmitted and received in accordance with SRAM’s proprietary wireless protocol known as AIREA. Each time an eTap groupset is paired, a new encryption code is generated and assigned to the components in this group to ensure complete shifting security.
Class-leading heat management technologies—heat shield, insulated aluminum pistons, and a wider pad pocket—help HydroHC improve on HydroR’s already impressive heat management capabilities.
Contact Point Adjustment
Contact Point Adjustment lets you custom tune when your brakes engage—a first for HRD.