RockShox

Reverb AXS XPLR A2 Dropper Seatpost - 50x350mm

The RockShox Reverb AXS XPLR A2 Dropper Seatpost (27.2mm, 50mm travel, 350mm length) brings true dropper-post control to modern gravel and adventure bikes without the cable routing headaches. With a wireless SRAM AXS interface and ActiveRide™ air-only internals, it delivers a firm top-out for efficient pedaling, then adds seated compliance when dropped—useful on washboard, chunky descents, and rough connectors where staying relaxed improves traction and handling.

What sets this gravel-specific Reverb apart

• Wireless SRAM AXS actuation - Clean cockpit setup and consistent dropper response without housing contamination or routing compromises; customization available through the AXS Mobile App
• ActiveRide™ comfort when dropped - Air-only internals provide a fully rigid top-out position, then add controlled compliance in the lowered position for better comfort and control over rough gravel
• 27.2mm fit for gravel frames - Designed for the seat tube standard common to many gravel bikes that can’t accept larger-diameter droppers
• IP69K waterproof/dustproof rating - Built for year-round gravel conditions, including pressure-wash-level sealing demands
• Broad saddle rail compatibility - Clamp supports standard round rails and 7x10mm oval carbon rails
• AXS power ecosystem - Includes battery and charger (USB-C charger cord sold separately) shared across compatible SRAM AXS components; AXS Controller sold separately