RockShox Reverb AXS Dropper Seatpost - 250mm B2 is a long-travel, wireless dropper built for modern trail and enduro bikes where maximum clearance and fast, repeatable saddle positioning matter. By eliminating hoses and internal routing, it simplifies installation and cockpit setup while integrating cleanly with the broader SRAM AXS ecosystem for consistent control feel and battery sharing across compatible components.
Trail-focused engineering highlights
250mm drop - Maximizes saddle clearance for steep descents and high-mobility riding on modern long-travel frames
Wireless AXS actuation - Removes hoses and routing for cleaner builds, easier swaps between frames, and precise button-driven operation
AXS ecosystem battery compatibility - Uses the same rechargeable battery format as other SRAM AXS components; battery and charger included (USB-C charge cord sold separately)
ActiveRide air-only internals - Adds a compliant feel when the post is not fully extended, improving comfort and traction on steep, technical climbs while remaining firm at full extension
Saddle rail compatibility - Supports all common saddle rail types for straightforward fitment across road, XC, and gravity saddles
AXS Controller required - Remote/controller sold separately, allowing riders to choose their preferred AXS control layout
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
637
Max Height
488.2, 492.8
Minimum Height
312.5, 314.2
Offset
0mm
Rail Style
Standard Rails
Remote Position
Not Included
Travel (mm)
250
Weight
748, 780, 832
Black - 30.9 UPC
710845929809
Black - 30.9 MPN
00.6818.070.019
Black - 31.6 UPC
710845929816
Black - 31.6 MPN
00.6818.070.020
Black - 34.9 UPC
710845929793
Black - 34.9 MPN
00.6818.070.018
Tree Fort ID:
333222477375
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