RockShox Reverb AXS Dropper Seatpost - 225mm B2 brings fully wireless dropper actuation to modern mountain bikes, eliminating hoses and internal routing while keeping controls consistent with the SRAM AXS ecosystem. With 225mm of travel, it targets riders who want maximum saddle drop for steep descents, cornering clearance, and confident body positioning—without adding cockpit clutter or service complexity.
Key advantages for a cleaner, more capable MTB setup
225mm Drop - Delivers extensive saddle clearance for aggressive descending, steep roll-ins, and modern long-travel trail/enduro fit.
Wireless AXS Actuation - No hydraulic hose, no bleeding, and no routing hassles; installation is straightforward with standard tools.
ActiveRide Air-Only Internals - Adds controlled compliance when the post is not fully extended, improving comfort and traction feel on steep, technical climbs; fully extended it remains firm for efficient pedaling.
Shared AXS Battery System - Includes battery and charger (USB-C charging cord sold separately) and uses the same battery format as other SRAM AXS components for simplified spares and charging routines.
Broad Saddle Compatibility - Compatible with all saddle rail types, supporting common carbon and alloy rail standards without special adapters.
Controller Required - An AXS Controller is required for operation and is sold separately, allowing riders to choose preferred button placement within their existing AXS cockpit.
Specifications & Identifiers
Actuation
Wireless Remote
Adjustment
Infinite
Cable Routing
Wireless
Color
Black
Defined Color
Black
Diameter - Seatpost
30.9mm, 31.6mm, 34.9mm
Length - Dropper Seatposts
587mm, 591
Max Height
478.2, 482.8
Minimum Height
287.5, 289.2
Offset
0mm
Rail Style
Standard Rails
Remote Position
Not Included
Travel (mm)
225
Weight
717, 745, 797
Black - 30.9 UPC
710845929663
Black - 30.9 MPN
00.6818.070.005
Black - 31.6 UPC
710845929724
Black - 31.6 MPN
00.6818.070.011
Black - 34.9 UPC
710845929786
Black - 34.9 MPN
00.6818.070.017
Tree Fort ID:
333222477374
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