RockShox

Reverb AXS XPLR A2 Dropper Seatpost - 75mm

RockShox Reverb AXS XPLR A2 Dropper Seatpost - 75mm is a purpose-built, wireless electronic dropper designed for modern gravel bikes that use a 27.2mm seatpost. With 75mm of travel, it creates real clearance for steep descents, loose corners, and technical two-track without the awkward body positions that come from riding a fixed saddle height. Its air-only internals integrate ActiveRide™ compliance to help smooth chatter and maintain control when the road turns rough, while SRAM AXS connectivity keeps the cockpit clean and the setup highly tunable.

Dialed advantages for gravel fit and control

1. 75mm gravel-focused drop - Adds meaningful room to move on descents and tight turns while staying appropriate for typical gravel saddle heights
2. 27.2mm compatibility - Fits a wide range of gravel frames that rely on 27.2 posts for comfort and compliance
3. ActiveRide™ air-only internals - Provides a fully rigid top-out position, plus built-in compliance when dropped to reduce harshness over rough sections
4. SRAM AXS wireless customization - Enables rider tuning and personalization through the AXS Mobile App for a clean, modern cockpit setup
5. Shared AXS power ecosystem - Includes battery and charger (USB-C charger cord sold separately) compatible with other SRAM AXS components
6. All-conditions sealing - Rated IP69K waterproof and dustproof for reliable performance in mud, washdowns, and foul-weather gravel

Note: Requires an AXS Controller for actuation (sold separately). The saddle clamp supports round rails and 7x10 oval carbon rails for broad saddle compatibility.