RockShox Reverb AXS B2 Dropper Seatpost

The RockShox Reverb AXS B2 Dropper Seatpost represents the pinnacle of wireless dropper post technology, delivering exceptional customization, clean installation, and trail-ready performance for mountain bikes and e-MTBs alike. With no cables to route from handlebars to seatpost, the Reverb AXS eliminates the complexity of traditional dropper installations, making setup straightforward and the cockpit cleaner than ever.

Operated by a wireless AXS handlebar remote and fully customizable through SRAM's AXS mobile app, the Reverb AXS B2 puts complete control at riders' fingertips. Performance settings, actuation preferences, and system behavior can all be dialed in precisely to match individual riding style and terrain demands. The shared AXS battery ecosystem means the Reverb AXS runs on the same battery as other SRAM AXS components, simplifying charging and reducing the number of spares needed on the trail.

Revamped internals featuring an air-over-air design deliver enhanced long-term durability and robustness over previous generations. The addition of ActiveRide technology is a standout innovation, when the seatpost is not fully extended, it allows slight give for a smoother, more forgiving ride on rough and technical climbing terrain. When fully extended for descending, the post locks completely rigid for precise, confidence-inspiring control. Improved battery clearance ensures better compatibility across a wider range of frame designs and geometries.

With travel options spanning 100mm to 250mm, the Reverb AXS B2 covers an exceptional range of frame sizes and rider preferences. Infinite travel adjustment means riders can fine-tune their preferred drop height precisely rather than being limited to fixed positions. The 2-bolt seat clamp accommodates all standard and oval saddle rail materials and shapes, preventing saddle movement while clamped and ensuring a secure, rattle-free connection ride after ride.

E-bike approved and built to handle the additional demands of motor-assisted riding, the Reverb AXS B2 is the complete wireless dropper solution for riders who demand the best from every component on their build.

Wireless operation. Travel options: 100-250mm. Infinite travel adjustment. 0mm offset. Includes SRAM AXS battery and USB-C charger. 

Key Features

• Wireless AXS Integration - Cable-free operation with full customization via SRAM AXS mobile app and shared battery ecosystem
• ActiveRide Technology - Intelligent compliance when partially extended smooths rough climbs while remaining fully rigid for descending
• 100-250mm Travel Range - Extensive travel options with infinite adjustment deliver precise fit across a wide range of frames and riders

Please Note: AXS Controller Sold Seperately.