The SRAM RED E1 Shifter is SRAM’s most advanced road control interface, combining wireless electronic shifting with high-performance hydraulic braking in a single, fully integrated system. Designed for elite road and gravel performance, it delivers unmatched ergonomics, precision, and control across all hand positions. This listing supports multiple configurations: Front/left shifter + hydraulic caliper Rear/right shifter + hydraulic caliper Full pair (left + right) for a bundled discount Key Features & Benefits One-Finger Hydraulic BrakingRedesigned lever geometry allows powerful, controlled braking from both the hoods and drops using a single finger, improving control, modulation, and long-ride comfort. Completely Redesigned Ergonomics (E1 Update)Updated hood shape and lever reach improve fit across a wider range of hand sizes while reducing fatigue on long rides, especially in the climbing and sprint positions. AXS Wireless Electronic ShiftingFully wireless shifting eliminates cables and enables clean cockpit integration, fast setup, and fully customizable shift mapping through the AXS app. Bonus Buttons for Custom ControlIntegrated programmable buttons allow riders to shift, control compatible head units, or trigger auxiliary functions directly from the hoods for expanded cockpit functionality. Lighter and Stiffer ArchitectureThe E1 generation reduces system weight while improving caliper stiffness and brake pad clearance for more consistent braking and reduced rub under load. Reach and Contact Point AdjustabilityIndependent adjustments allow precise tuning of lever feel and engagement point, enabling a highly personalized fit without compromising performance. Technical Specifications System Type: SRAM RED AXS E1 electronic shift + hydraulic disc brake Configuration Options: Front/left, rear/right, or paired set Brake Type: Hydraulic road disc (flat mount calipers) Shifting: Wireless AXS eTap logic Lever Material: Carbon composite lever blade Adjustability: Reach adjust + contact point adjust Compatibility: SRAM AXS road groups (Red, Force, Rival ecosystem) Hydraulic Fluid: DOT 5.1 Use Case: Road racing, endurance, gravel performance builds Integration: Fully compatible with SRAM AXS app and ecosystem