RockShox

Reverb AXS Dropper Seatpost - 100mm B2

RockShox Reverb AXS is a wireless electronic dropper seatpost built for riders who want clean cockpit setup, consistent actuation, and quick installation without hoses or internal routing. This 100mm travel B2 version plugs into the SRAM AXS ecosystem with a shared battery platform, letting an XC, trail, or enduro bike run a modern dropper post with fewer service headaches and more setup flexibility.

AXS-ready performance highlights

• Wireless AXS actuation - Eliminates cable and hose routing for a cleaner build and straightforward installs or swaps between frames
• Shared AXS battery system - Uses the same removable battery as other SRAM AXS components; battery and charger included (USB-C charger cord sold separately)
• ActiveRide air-only internals - Adds controlled compliance when the post is dropped to help maintain traction and comfort on steep, technical climbs; fully extended it returns to a firm, supportive pedaling position
• AXS ecosystem control customization - Works with SRAM AXS wireless controls for a simplified cockpit and consistent feel across AXS-equipped bikes (required AXS Controller sold separately)
• Broad saddle compatibility - Compatible with all common saddle rail types for easy fitment with existing saddles
• Improved battery clearance - Designed with updated clearance to better suit modern frames and dropper routing constraints