Service kits for RockShox Reverb, Reverb Stealth (A1, A2, B1, C1) and AXS seatposts \n Kits may include extra seals that are not required all versions of the Reverb \n Includes upgraded bushings (lower and upper), IFP and dust wipers \n Also includes schrader valve core thats rated to 800 psi (stock valve core with red seal rated to 350 psi) \n Backup rings are not included (stock rings can be reused several times)