The SRAM RED AXS 1x Aero Power Meter E1 Crankset is the best tool to help you reach your best.

Our most lightweight, stiffest, and most accurate integrated power meter just got lighter with a new carbon crankarm construction.  Our power meter is accurate to +/-1.5% and isn’t affected by temperature changes, and the direct mount X-SYNC chainring is aero and incredibly long-lasting.

In addition, we’re offering more crank arm lengths than ever before to ensure this crank works for you.

Features:

• Power meter is fully integrated into the chainring for lighter weight and greater accuracy
• Power readings are accurate within +/-1.5% and aren’t affected by climate conditions during a ride
• Measures right and left leg power balance
• Ultra-light hollow carbon fiber crankarms are 29 g lighter than previous generation
• DUB bottom bracket adds durability and simplicity
• Available in 160, 165, 167.5, 170, 172.5, and 175 mm lengths

Product Specifications:

• Speeds    12, 13
• BB Compatibility    All SRAM Road DUB BBs, All SRAM Road DUB BBs, except Ai
• Chainring Size    44T, 46T, 50T
• Crank arm length    160mm, 165mm, 167.5mm, 170mm, 172.5mm, 175mm
• Chainline    45.0mm
• BB Spindle Interface    DUB
• Chainring material    Aluminum
• Bolt Circle Diameter (BCD)    Direct Mount (DM)
• Power meter    Yes
• Power Meter Type    Spider
• Bottom Bracket Technology    n/a
• Chain Technology    Road Flattop D1, Road Flattop E1
• Drivetrain Configuration    1x
• Technology (FD)    n/a
• Front Tooth Jump    0