SRAM RED AXS Power Meter Crankset - 172.5mm 12-Speed 46/33t Direct Mount DUB Spindle Interface Natural Carbon D1. The SRAM RED AXS power meter is a huge step forward in power meter design giving riders the gearing they truly want and need. Shifting performance has been optimized by moving the range from the front of the drivetrain to the back and creating a consistent 13-tooth gap across all variants of chainring duos. The crankset is designed specifically for electronic shifting with Quarq's premier DZero power measurement technology fully integrated.

X-Range gearing technology gives you more range and a smoother gear progression so you’re always in the right gear

Power meter is fully integrated into the chainring set

ANT+ and BLE

Power balance measures left and right legs separately

Power readings are accurate within +/-1.5% and aren’t affected by climate conditions during a ride

Integrated chainring design significantly reduces weight

Unique chainring shape results in a lighter weight stiffer more durable crankset

Carbon crank arms and aluminum chainrings are lightweight

DUB bottom bracket (not included) adds durability and simplicity

45mm chainline