Shimano XT SM-RT81 Lock Ring and Washer
Best reliable replacement for maintaining disc brake system integrity.
This essential component ensures your disc brake rotor remains securely fastened to the hub. It provides the necessary tension and locking mechanism required for safe, reliable braking performance on every ride.
$15.18
at
Bicycle Addiction
Who it's for
- Mountain bikers prioritizing safety and consistent brake performance.
- Shimano XT users needing a direct replacement part.
- Riders seeking long-lasting components for their disc brakes.
Who should skip it
- Cyclists with non-Shimano or different model rotors.
- Beginner mechanics without a complete toolset.
- Budget-conscious buyers expecting all necessary hardware.
Performance breakdown
Installation Simplicity
Standard splined interface makes rotor swaps quick and intuitive.
Structural Integrity
High-grade alloy construction ensures zero movement under heavy braking loads.
Compatibility Precision
Exact OEM tolerances eliminate any risk of rotor wobble or misalignment.
Vibration Resistance
Integrated washer design effectively prevents loosening from trail chatter.
Corrosion Resistance
Durable finish withstands wet weather and road grime without seizing.
Weight Efficiency
Minimalist design keeps rotational mass low without sacrificing critical strength.
Key Specs
Part Type
Disc Brake Rotor Lock Ring and Washer
Mounting Type
Center Lock
Quantity per Pack
1
Component Application Area
Brakes
Lockring included
Yes
Compatibility
SM-RT81 series
Know before you buy
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Ask Metto anything about the Shimano XT SM-RT81 Lock Ring and Washer before you decide.
