The SRAM RED AXS 2x Power Meter E1 is the best tool to help you reach your best.

The choice of our top professionals, our most lightweight, stiffest, and most accurate integrated power meter and chainring combo just got lighter with a new carbon crankarm construction.

The SRAM power meter is accurate to +/-1.5% and isn’t affected by temperature changes, and the consistent 13-tooth gap on the rings ensures fast and reliable shifting.

Not just superior on performance, our integrated rings are also long-lasting.

Features:

• 29 g lighter than previous generation
• Power meter is fully integrated into the chainring for lighter weight
• Power readings are accurate within +/-1.5% and aren’t affected by climate conditions during a ride
• Measures right and left leg power balance
• X-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear
• Crisp and accurate front shifts
• DUB bottom bracket adds durability and simplicity
• 50/37T, 48/35T and 46/33T chainring combos available
• Available in 160, 165, 167.5, 170, 172.5, and 175 mm lengths

Product Specifications:

• Speeds    12
• BB Compatibility    All SRAM Road DUB BBs
• Chainring Size    46/33T, 48/35T, 50/37T
• 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
• Chain Technology    Road Flattop D1, Road Flattop E1
• Drivetrain Configuration    2x
• Technology (FD)    Road-Yaw
• Front Tooth Jump    13
• Weight (g)    580
• Weight Based On    172.5mm length with 48/35 chainrings and coin cell battery