Sram Red AXS E1 12-speed Derailleur

SRAM RED AXS E1 12-speed Front Derailleur – Wireless Precision and Perfect Shifting on Every Gear

The SRAM RED AXS E1 12-speed is the benchmark front derailleur for high-end road drivetrains, designed to offer fast, silent, and friction-free shifting across the entire cassette. Thanks to AXS electronic technology and the Yaw system, it guarantees professional-level performance with unprecedented ease of setup.

Fast, smooth, and silent shifting

The RED AXS E1 is not only fast in front shifting: it is designed to operate silently across the entire cog range, eliminating chain-ring contact in every combination.

• SRAM Yaw technology with automatic electronic trim
• Faster and more precise front shifting
• Total elimination of rubbing noise
• Smooth operation on all gear combinations

AXS wireless technology

The AXS system takes electronic drivetrain management to a new level:

• Simple and immediate wireless setup
• Full customization via app
• Smart monitoring and updates
• Increased reliability thanks to digital communication
• Battery not included

Advanced engineering

The optimized cage design and integrated electronic system improve every aspect of shifting:

• Redesigned cage shape for faster and more precise shifts
• Auto Trim function for consistently silent operation
• Simplified setup with the included tool
• Road-Yaw technology optimized for X-Range chainrings

Technical specifications

• Speed: 12v
• Chainring compatibility: 46/33T, 48/35T, 50/37T, 54/41T, 56/43T
• Mount type: Braze-on
• Cable routing: Wireless
• Color: Black
• Chainstay angle: 61-66°
• Control type: AXS
• Drivetrain configuration: 2x
• Derailleur technology: Road-Yaw
• Chainline: 45.0 mm
• Compatible chains: Road Flattop D1, Road Flattop E1
• Shifting technology: Yaw

Ideal for

The SRAM RED AXS E1 12-speed is designed for demanding road cyclists, competitors, and high-end enthusiasts who seek maximum precision, zero noise, and advanced electronic drivetrain management.