No hoses. No routing. No energy wasted. Not a single thing in the way of the experience. RockShox created a reliable wireless-electronic dropper post and controller that actuates with drastically less effort and zero distraction. Expanding what's possible on a bike, Reverb AXS is enabled by Sram AXS™ technology, a new level of interaction, personalization, and connectivity across all AXS enabled components.   Features Effortless Electronic-Wireless actuation and infinite height adjustment with a single touch.. Clean, simple and fast to install. No hoses to route, no fishing required.. Updated internals for faster return speed in all conditions.. New Vent Valve Technology, a simple and reliable built in service solution without disassembly of the seatpost.. Sram AXS™ technology, a new level of interaction, personalization, and connectivity across all AXS™ enabled components.. Includes RockShox AXS™ handlebar controller, rechargeable SRAM battery and charger.. Compatible with 7mm round rails and 7x9mm oval rails..   Specification Travel: 100mm, 125mm, 150mm, 170mm. Diameter: 30.9mm, 31.6mm, 34.9mm. Length: 340mm, 390mm, 440mm, 480mm. Remote: Descrete Clamp Remote.