RockShox

Reverb AXS Dropper Seatpost - 125mm B1

RockShox Reverb AXS Dropper Seatpost brings truly cable-free function to a modern mountain bike cockpit, using the SRAM AXS wireless platform for clean installation and consistent actuation. This 125mm travel B1 dropper is designed for riders who want quick height changes without hoses or routing, while keeping power and charging common across other AXS-equipped components.

Why it stands out on the trail

• Wireless AXS actuation - Eliminates hoses and internal routing to simplify installs, swaps, and frame compatibility
• Shared AXS battery ecosystem - Includes battery and charger that are shared with other SRAM AXS-enabled components for streamlined spares and charging
• ActiveRide compliance (air-only internals) - Adds controlled compliance when the post is dropped to improve comfort and traction on steep, technical climbs; fully extended it stays firm and supportive
• Customizable control integration - Works within the AXS ecosystem for personalized control setup (requires AXS Controller, sold separately)
• Broad saddle compatibility - Compatible with all common saddle rail types for straightforward fitment