Are eTap® HRD 2x11 calipers available aftermarket for purchase? November 21, 2019 17:02 Updated Yes, only as spares for replacement or service. Related articles Can I just buy the eTap® HRD 2x11 shifters and use them with my existing brake calipers? Do eTap® HRD 2x11 levers have contact point adjustment? How often should SRAM HRD brakes be bled as part of a regular maintenance schedule? Can I choose between 140mm and 160mm rotors for eTap® HRD 2x11 brakes? How do I know when to replace my rotors? Comments 0 comments Article is closed for comments.