Tracking your progress on gravel just got easier and more accurate. With our new spider-based power meter and removable Thread Mount chainrings, the RED XPLR AXS power meter is lightweight, reliable in all weather, and accurate within +/-1.5%. With dual-sided power measurement, even your loftiest gravel training goals are within reach. FEATURES - All-new design with removable and replaceable Thread Mount chainrings, available in 38T-46T - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - User replaceable CR2032 battery with 200-hour battery life - Measures right and left leg power balance - Ultra-light hollow carbon fiber crankarms are 29 g lighter than the previous generation - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Available in 160, 165, 167.5, 170, 172.5, and 175 mm lengths