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In certain disciplines, the single-ring drivetrain reigns supreme. Championing simplicity, strength and durability, the SRAM RED 1 AXS power meter meets the demands of triathletes, time trialists and cyclocross racers. The power meter features improved aerodynamics thanks to direct mount aero chainrings with fully integrated power, and the tighter gearing range is perfect for racing and flatter terrains.

FEATURES

• Single-ring drivetrain simplifies functionality
• 48 and 50t variants have fully integrated power into a direct mount aero chainring
• 36-46t variants have spider-based power
• Chainrings can be easily changed without requiring recalibration of the power meter
• Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride
• Power balance measures left and right legs separately
• SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control
• Laser-etched chainring finish is more durable
• DUB bottom bracket adds durability and simplicity
• Non-aero chainrings can be installed with a single tool, making gearing changes a breeze

SPECIFICATIONS
CRANK ARM LENGTH 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm
BB SPINDLE INTERFACE DUB
BB COMPATIBILITY All SRAM Road DUB BBs
SPEEDS 12
CHAINRING MATERIAL Aluminum
BOLT CIRCLE DIAMETER (BCD) Direct Mount (DM), 107 BCD
CHAINLINE 45.0mm
CHAINRING SIZE 48, 50, 36, 38, 40, 42, 44, 46