OneUp Components V2 Dropper Post Rebuild Kit Description: The OneUp Components V2 Dropper Post Rebuild Kit includes the necessary seals, bushings, and anti-rotation pins necessary to maintain and/or restore the functionality and performance of a OneUp Components V2 Dropper Seatpost. Regular maintenance on the seatpost will ensure the dropper seatpost will operate at peak performance and last longer. Note This kit is specifically for the OneUp Components V2 Dropper Seatpost with a diameter of 27.2mm. Includes: (1) Replacement Upper Seal (1) Upper Bushing (1) Lower Bushing (4) Anti-Rotation Pins