RockShox Reverb AXS B1 Lower Tube
Best premium replacement for dedicated mountain bike enthusiasts.
This replacement lower tube assembly is the essential fix for restoring a wireless dropper post to factory performance. It provides the necessary structural components to get back on the trail without needing to replace the entire system.
$75.00
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Who it's for
- Maintenance-conscious owners who want to fix squish issues at home
- Riders seeking a clean cockpit and hassle-free setup process
- Performance-focused mountain bikers requiring rapid adjustments on technical terrain
Who should skip it
- Budget-oriented cyclists looking for a more economical mechanical alternative
- Forgetful riders who prefer the reliability of a cable-actuated system
- Weight-conscious cross-country racers prioritizing the lightest possible build
Performance breakdown
Repairability
Restores factory-level performance without needing to replace the entire expensive system.
Build Precision
OEM manufacturing ensures exact tolerances for smooth, reliable dropper actuation.
Installation Complexity
Requires advanced mechanical knowledge and specific tools for proper service.
Material Durability
High-grade alloy construction matches the original component's rugged trail resilience.
Component Integration
Seamlessly interfaces with existing AXS electronics and internal hydraulic systems.
Service Value
Extends the lifespan of premium hardware significantly more cost-effectively than replacement.
Key Specs
Diameter
31.6 mm
Travel
100 mm
Compatibility
Reverb AXS B1+ (2026+)
Includes
Lower tube, intermediate base, and contacts
Manufacturer Part Number
11.6818.064.006
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