Shimano
Dura-Ace CL900 Disc Brake Rotor
Best high-performance rotor for cyclists demanding consistent, fade-free stopping power.
Experience superior stopping power with the Shimano RT-CL900 Disc Brake Rotor, engineered for peak performance on demanding descents. This flagship rotor prioritizes heat management, utilizing advanced ICE TECHNOLOGIES and FREEZA fins to ensure consistent braking and longevity. Its robust design enhances quiet operation, while the advanced cooling system reduces brake fade and extends pad life. Ideal for both road and mountain bikes, this 140mm Center Lock rotor offers reliable performance in any condition.
$95.00
Owner Satisfaction
4.8
/ 5
Category Rank
9
/ 2100
#9 in Components
Price vs Category Average
-8%
Below average
Disc Diameter
140
/ mm
Who it's for
- Mountain bikers tackling long, steep, and technical descents
- Weight-conscious racers seeking maximum performance and efficiency
- Cyclists who prioritize a silent and smooth braking experience
Who should skip it
- Budget-focused riders looking for cost-effective replacement parts
- Minimalist riders who prefer a sleek, low-profile aesthetic
- Mechanics and riders who prefer using versatile aftermarket brake pads
Performance breakdown
Heat Dissipation
Advanced cooling fins effectively eliminate brake fade on the longest descents.
Braking Consistency
Reliable stopping power remains predictable regardless of weather or terrain conditions.
Acoustic Performance
Robust arm architecture significantly reduces unwanted noise during heavy braking.
Component Longevity
Superior thermal management extends the functional lifespan of your brake pads.
Weight Efficiency
Lightweight construction provides high-end performance without adding unnecessary mass.
Installation Ease
Center Lock interface ensures a quick, secure fit with included hardware.
Key Specs
Disc Diameter
140mm
Hub Compatibility
Center Lock
Disc Material
Stainless steel/Aluminum
Disc Technology
Ice-Tech and Freeza
Disc Rotor Weight
96g
Pad Type Compatibility
Metal or Resin
Recommended Bike Type
Road or mountain bike
Features
- Flagship performance rotor design
- Quieter operation via robust new arm shape
- Superb, consistent braking performance
- Superior heat dissipation with ICE TECHNOLOGIES
- FREEZA fins for rapid heat dissipation
- Longer pad life and reduced brake fade
- Compatible with metal or resin pads
- Lock-ring included for installation
What customers say
The Dura-Ace CL900 Disc Brake Rotor earns high praise for its exceptional braking performance and reliability. Riders consistently highlight the powerful yet highly controllable modulation, which builds confidence across all riding situations. A key benefit noted is the impressive heat dissipation, which minimizes brake fade during long descents and contributes to longer pad life. Furthermore, the rotor's lightweight design complements high-end road and gravel bikes perfectly. While the initial cost is premium, the consensus among serious cyclists is that the superior quality and consistent elite performance fully justify the investment. It is celebrated as a top-tier component delivering dependable results.
Know before you buy
Yes, this rotor is fully compatible with both metal and resin brake pads, giving you the flexibility to choose the compound that best suits your riding style and local terrain.
Yes, the Shimano RT-CL900 includes the required lock-ring, so you have everything needed to secure the rotor to your Center Lock hub.
The FREEZA fins significantly increase the surface area of the rotor, which allows heat to dissipate much faster during long or steep descents. This prevents brake fade and keeps your stopping power consistent, while also helping your brake pads last longer.
While the RT-CL900 is designed for both road and mountain bikes, ensure your frame and fork are compatible with a 140mm rotor size. If you typically ride in very steep or aggressive terrain, you may want to verify that a 140mm rotor provides enough stopping power for your specific weight and riding intensity.
Yes, the updated, more robust arm shape is specifically engineered to reduce vibration and noise during braking, resulting in a quieter and more refined ride compared to older designs.
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