The Reverb AXS B1/B2 dropper post completes the AXS ecosystem by giving the rider customizable controls, easy installation, a shared battery, charger, and controller. The AXS ecosystem is focused on simplifying cockpit controls to enhance the riding experience. Reverb AXS integrates seamlessly into the AXS ecosystem through wireless controls that unlock unparalleled customization options and precise actuation. With no hoses or routing required, installation is a breeze-just grab a multitool, and you're ready to go, leaving you with more time to simply enjoy the ride.Includes battery and charger (USB-C charger cord Sold Separately) that's shared with all other SRAM AXS enabled componentsRequired AXS Controller is Sold SeparatelyCompatible with all saddle rail typesBuilt for GX, X0, and XX riders, Reverb AXS ensures smooth control and reliability for every rider running a 100mm up to a 250mm dropper post, all with improved battery clearanceActiveRide technology provides a compliant platform for technical climbs when not in fully extended rigid positionNew air-only internals feature ActiveRide, a built-in compliance system that enhances traction on steep, technical trails. Fully extended, Reverb AXS is rock-solid. But once you drop the saddle, ActiveRide engages, delivering extra responsiveness and comfortItem SpecificationsActuationWireless RemoteAdjustmentInfiniteCable RoutingWirelessClamp StyleStandard RailsColorBlackDefined ColorBlackDiameter34.9Length391.8Max Height322.8Min Height189.2Offset (mm)0Travel (mm)125Weight675 RockShox Reverb AXS Dropper Seatpost - B1/B2 Dropper Seatpost UPC: 710845929748