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RT-CL900 Rotor - Centerlock
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Warning: California Proposition 65
Silent, powerful control with the RT-CL900 Disc Rotor—built to handle heat and speed
What Our Gearhead® Experts Are Saying:
"I switched to the RT-CL900 rotors for my endurance road and gravel setups, and the difference was immediate. They run whisper-quiet—even when soaked—and stay cool on long, steep descents. The two-piece design manages heat beautifully, and installation is seamless thanks to the included lockring."
When we’re dropping into high-speed descents or threading through technical switchbacks, we rely on the Shimano RT-CL900 Disc Brake Rotor to keep our braking predictable and noise-free. Designed for consistent stopping power, this rotor excels in both road and gravel applications, especially where heat management is key.
With a robust two-piece design and innovative heat-dissipating paint, Shimano delivers on both quiet operation and thermal control. Even under sustained braking, the RT-CL900 remains cool and composed, ensuring every squeeze of the lever results in smooth, powerful deceleration. Add in the Center Lock mounting and a lockring that comes in the box, and it’s a clean upgrade for any performance build.
Details
- Reliable rotor for steep road descents and hard gravel braking
- Two-piece design balances weight, stiffness, and heat control
- Heat-dissipation coating helps reduce fade on long descents
- Silent operation even under heavy braking or wet conditions
- Center Lock interface for fast, secure rotor installation
- Includes lockring with internal serration for easy setup
- Compatible with all pad compounds and Shimano calipers
- Item #SHIU1HN
- Material
- steel, aluminum
- Attachment Type
- flat mount center lock
- Compatibility
- DURA-ACE R9200 Series
- Diameter
- 140mm, 160mm, 180mm, 203mm
- Claimed Weight
- [140mm] 96g, [160mm] 114g
- Activity
- road cycling
- Manufacturer Warranty
- 3 years
Closer to Nature, Closer to People
Shimano supports people to realize their dreams to create new lifestyles that will bring them closer to nature and share the joy of life with each other.
Cancer and Reproductive Harm - P65Warnings.ca.gov
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Shimano RT-CL900 Centerlock Rotor featuresHeat dissipation technology for better brakingDURA-ACE R9200 Series compatible rotor140mm and 160mm rotor diameter optionsLightweight design with 96g and 114g weightsRobust arm shape for quieter brakingIdeal for road cycling performanceMinimizes heat deformation during descentsDurable steel and aluminum constructionFlat mount center lock attachment type3-year manufacturer warranty includedDesigned for both male and female cyclistsLearn more about RT-CL900 Rotor - Centerlock