* 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* SRAM Model ID: FC-RED-P-E1