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
Cancer and Reproductive Harm - P65Warnings.ca.gov