Shimano XTR HB-M9110 Disc Rotor Lock Ring and Washer
Best secure rotor attachment for demanding cycling enthusiasts.
A critical piece of hardware for securing disc rotors to hubs. Its external serration design simplifies maintenance, allowing for quick installation with standard tools. This small but vital component ensures the braking system remains tight and reliable, providing peace of mind during aggressive rides or long-distance cycling.
$16.25
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Who it's for
- Riders committed to a full Shimano XTR drivetrain and braking system.
- Aggressive mountain bikers seeking reliable, long-lasting components for their high-performance bikes.
- Cyclists prioritizing maximum braking safety and consistent performance on challenging terrain.
Who should skip it
- Budget-minded cyclists or those not requiring XTR-level componentry.
- Riders with 6-bolt rotors or internal spline center-lock hubs needing different hardware.
- Home mechanics without an external bottom bracket tool or seeking simpler installation.
Performance breakdown
Installation Simplicity
External serrations make tightening with standard bottom bracket tools incredibly straightforward.
Material Integrity
High-grade alloy construction resists stripping even under frequent maintenance cycles.
Attachment Security
Engineered tension washer ensures the rotor stays locked during aggressive riding.
Compatibility Precision
Perfectly machined for XTR Centerlock hubs, eliminating any potential play.
Weight Efficiency
Minimalist design keeps rotational mass low for performance-focused builds.
Durability
Genuine Shimano engineering withstands harsh trail conditions and repeated torque applications.
Key Specs
Part Type
Disc Rotor Lock Ring and Washer
Mounting Type
Centerlock
Tool Compatibility
External bottom bracket tool
Quantity per Pack
1
Compatibility
XTR HB-M9110 Disc Rotors
Know before you buy
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