* X-Range gearing technology gives you more range and a smoother gear progression, so youre always in the right gear* Power meter is fully integrated into the chainring set* Power readings are accurate within +/-1.5% and arent affected by climate conditions during a ride* Power balance measures left and right legs separately* Improved front shifting performance for crisp and accurate front shifts* Unique chainring shape results in a lighter weight, stiffer, more durable crankset* Integrated chainring design significantly reduces weight* DUB bottom bracket adds durability and simplicity* SRAM Model ID: PM-RED-D1