Redesigned with an Air over Air system, the RockShox Reverb AXS B1 now boasts the longest drop of any dropper post, and shortest insertion depth of any wireless dropper post. Reverb AXS has a rock solid platform at full extension, and now has some suspension when slightly dropped to give you more comfort through technical climbs. Using the same battery and app as other AXS components, this dropper post completes the SRAM AXS ecosystem, giving riders an integrated wireless experience. Before purchasing a long travel RockShox Reverb AXS, please double and triple check that your Reverb will fit! Check out RockShox&';s Reverb AXS Dropper Length Calculator to ensure maximum travel for you and your frame! Give us a call if you&';re not one million percent sure that this post will fit your frame. Remote sold separately! SRAM has a few options, and we recommend the SRAM Pod Controller! 600 psi max Air over Air construction increases reliability and stability ActiveRide engages when post is dropped 733g (Actual weight, 31.6mm, 200mm travel, w/ battery) 300 hour or annual service interval SRAM AXS Battery and charger included Not travel adjustable