Product Description The RockShox Reverb AXS dropper seatpost with 50 mm of travel from the XPLR series is designed for gravel use. Information regarding the return of batteries and electrical equipment:Information on the return and disposal of used batteries and electrical equipment can be found here. Specifications:Application:GravelTravel:50 mmDiameter:27.2 mmLength:350 mm, 400 mmSetback:0 mmTechnical Information:Actuation:wireless handlebar remotePower Source:batteryClamp:single boltCompatible Saddle Rails:7 x 7 mm (standard), 7 x 9 mm (oval), 7 x 10 mm (oval)Material:aluminiumApproved For:Insertion Depth (min.):100 mmFeatures:designed for gravel use (XPLR = Explore)water- and dustproof (protection Rating IP69K)individual settings possible within the AXS appvery rigid when extended due to Air-Only interiorActiveRide damping acts like minimal saddle suspension for more comfort on rough ground conditionsTechnology:AXS: AXS is the new electronic integration platform by SRAM, which combines electronic bicycle components and software. The SRAM AXS app allows you to view battery status, change component behaviour, adjust controls, receive maintenance reminders and update firmware. Models:27.2 mm / 350 mm / SB 0 mm / w/o Remote: Length:350 mmManufacturer Number:00.6818.062.002 27.2 mm / 400 mm / SB 0 mm / w/o Remote: Length:400 mmManufacturer Number:00.6818.062.001Contents:1 x RockShox Reverb AXS XPLR seatpost1 x SRAM AXS battery1 x SRAM chargerOrder Together:AXS Controller for Reverb AXS Manufacturer: SRAM LLC 1000 W. Fulton Market 4th Floor Chicago IL 60607 USA info@sram.com Distributor: SRAM Europe Sales and Services B.V. Paasbosweg 16 3862 ZS Nijkerk Netherlands info@sram.com