2027 Reverb AXS B2 Dropper Seatpost

Wireless Control. Effortless Drops. Built to Ride.

The Reverb AXS Dropper Post is the cleanest way to control your saddle height on the trail. No cables, no fuss, just instant, smooth drops at the touch of a button, whether you’re powering up a technical climb or sending it down the other side.

Powered by SRAM’s AXS wireless technology, the Reverb AXS syncs effortlessly with your AXS drivetrain and lets you customize your controls through the SRAM AXS app. Shift, drop, ride, all connected, all on your terms.

With travel options from 100mm to 250mm and tool-only installation (no hoses, no routing), it’s built to fit right out of the box. And when it’s time for a service? Fast, simple, and designed for riders who’d rather be on the trail than in the garage.

Tough, reliable, and seriously fun, the Reverb AXS is a fully integrated part of your ride, not just an add-on.

Reverb AXS B2 Features:

• Wireless AXS Integration – No cables, no clutter. Just clean, crisp, wireless actuation
• Quick & Easy Installation – No internal routing required. Install or remove in minutes
• ActiveRide Technology – Firm and supportive when fully extended, with built-in compliance when dropped to keep you smooth and in control on techy climbs
• Built Tough & Serviceable – Durable air-over-air design that’s easy to maintain, with service kits and replacement parts readily available
• Customizable Control – Pair it with the SRAM AXS app to assign buttons and dial in your ride
• One Battery for All – Shares the same AXS battery, charger, and controller as your SRAM drivetrain. Battery and USB-C charger included (USB-C cord not included)

Wondering about B1 vs B2? They’re the same post with the same performance. The only real difference is the charger. The B1 uses micro-USB, while the B2 upgrades to USB-C.

Specs: