SRAM RED AXS 1x 165x50 AERO DUB NoBB SL/GYSingle ring drivetrain simplifies functionality and reduces weight 48 and 50t variants feature direct mount aero chainrings for better aerodynamics 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 Can be upgraded to a power meter
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