Shimano Dura-Ace RT-CL900 – 160 mm Center Lock Disc Brake Rotor
The Shimano Dura-Ace RT-CL900 is a high-performance 160 mm disc brake rotor designed for road cyclists seeking consistent braking, efficient heat management and reliable control.
Featuring Shimano ICE TECHNOLOGIES FREEZA construction and an updated rotor design, it helps dissipate heat during demanding braking conditions while reducing unwanted noise.
The 160 mm diameter offers increased braking leverage compared with a 140 mm rotor, making it a practical choice for compatible road disc brake systems.
Key Features
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160 mm diameter: Provides greater braking leverage than a 140 mm rotor.
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Center Lock mounting: Shimano spline-based installation for compatible hubs.
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ICE TECHNOLOGIES FREEZA: Multi-layer rotor construction with an aluminum core and cooling fins for improved heat dissipation.
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Effective heat management: Helps maintain consistent braking performance during long descents.
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Quiet braking design: Updated construction helps reduce heat-related rotor deformation and brake noise.
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Dura-Ace performance: Premium Shimano road component designed for demanding riding.
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Metal and resin pad compatibility: Suitable for compatible Shimano brake pads of either compound.
Technical Specifications
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Brand: Shimano
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Series: Dura-Ace R9200
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Model: RT-CL900
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Product type: Disc brake rotor
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Diameter: 160 mm
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Mounting system: Shimano Center Lock
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Technology: ICE TECHNOLOGIES FREEZA
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Braking surface: Stainless steel
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Rotor construction: Stainless steel and aluminum multilayer structure
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Cooling fins: Aluminum
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Brake pad compatibility: Metal and resin, subject to caliper compatibility
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Application: Road cycling
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Lockring: Center Lock lockring; verify included hardware and hub axle compatibility
Consistent Braking with ICE TECHNOLOGIES FREEZA
The RT-CL900 uses a multilayer structure combining stainless steel braking surfaces with an aluminum core. Extended aluminum cooling fins help dissipate heat generated during braking.
This construction supports consistent braking performance during long descents and repeated braking efforts.
160 mm Braking Performance
Compared with a 140 mm rotor, the 160 mm diameter provides increased braking leverage.
Its larger diameter also offers additional surface area for heat management, making it a suitable choice for cyclists who prioritize braking control on demanding terrain.
Reduced Noise and Improved Stability
Shimano's updated rotor design improves thermal stability, helping reduce unwanted vibration and noise during braking.
The result is a refined braking feel for performance road riding.
Center Lock Installation
The Center Lock interface allows the rotor to be secured to a compatible hub using a lockring.
Before installation, confirm:
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Hub compatibility with Shimano Center Lock rotors.
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Bicycle and fork or frame approval for a 160 mm rotor.
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Brake caliper and brake pad compatibility.
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Correct lockring type for the hub's axle configuration.
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Appropriate brake caliper adapter when changing rotor diameter.
The RT-CL900 is not directly compatible with 6-bolt rotor mounts.
Installation and Maintenance
Use the appropriate Center Lock installation tool and follow Shimano's recommended lockring tightening torque.
Keep the braking surface free from oil and grease. Inspect rotor thickness, wear and condition according to Shimano's service instructions.
Note: This product is the Shimano Dura-Ace RT-CL900 disc brake rotor in the 160 mm diameter.
