













RockShox Reverb AXS B1 Upper Piston
The RockShox Reverb AXS B1+ upper piston and valve assembly fits 30.9/31.6mm seatposts in 100-175mm drop heights for electronic seat height adjustment. It's a major rebuild part for dropper-post service.
- Misc: 30.9/31.6, 100mm
Pairs well with

RockShox Reverb AXS B1 Upper Piston
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