Advanced Shifting Performance Its advanced shift logic is inspired by motorsport & introduces a new way to shift that will virtually eliminate mistaking upshifts & downshifts. The shifters are powered by two CR2032 watch batteries, which are good for 2 years of use. Ergonomically shaped hoods sit comfortably in the hand & the levers are reach-adjustable to suit all hand sizes. Airea Utilising 128-bit encryption, e Tap shift signals are transmitted & received in accordance with SRAM’s proprietary wireless protocol known as AIREA. Each time an e Tap groupset is paired, a new encryption code is generated & assigned to the components in this group to ensure complete shifting security e TAP All of the underlying technologies in the SRAM RED e Tap groupset such as wireless shifting, advanced battery power management & mechatronics technologies are all meant to serve one ultimate purpose, to facilitate the most intuitive & consistent shifting available. This shift logic is called e Tap. The right lever makes it harder, the left lever makes it easier, press both levers to shift the front derailleur. Simple, unmistakable, & intuitive.