The RockShox Reverb AXS XPLR is a wireless dropper seatpost for gravel bikes, with 50 mm of travel in a 27.2 mm diameter. ActiveRide gives the saddle some give over rough ground.

What it's for

Dropping the saddle a little gives you room to move on rough gravel descents. It is rated for electric bikes.

How it works

ActiveRide: the air only internals are fully rigid at full extension. Lower the post slightly and it has built in compliance, like a small amount of suspension for the saddle.

AXS: controlled wirelessly by SRAM AXS shifters or a controller, with setup in the AXS app.

Compatibility

• Seat tube: 27.2 mm
• Saddle rails: round 7x7 and oval 7x9; fits 7x10 oval carbon rails
• Controller: SRAM AXS

Specs

• Travel: 50 mm
• Diameter: 27.2 mm
• Length: 400 mm
• Water rating: IPX7
• Color: black
• Model: SP-RVB-XPLR-A1
• Part number: 00.6818.062.001

In the box

• Reverb AXS XPLR seatpost
• SRAM AXS battery
• Charger