Shimano RT-CL900 Brake Disc – ICE TECHNOLOGIES FREEZA – Center Lock
Maximum quietness and high performance, even on the most demanding descents
The Shimano RT-CL900 brake disc with ICE TECHNOLOGIES FREEZA technology represents the pinnacle in terms of quietness, heat dissipation, and braking performance. Developed to ensure stability and reliability even in the most extreme conditions, this rotor is designed with particular attention to reducing thermal deformation, while maintaining a lightweight and robust structure.
Perfect for road, gravel, and MTB use, the CENTER LOCK mounting system ensures quick, secure installation compatible with a wide range of hubs.
Technical Specifications
Model: Shimano RT-CL900
Technology: ICE TECHNOLOGIES FREEZA
Mounting type: Center Lock
Available diameters: 140 mm, 160 mm, 180 mm, 203 mm
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Advanced technical features:
New arm shape stronger and quieter
Special high thermal dispersion paint
Multilayer construction (steel + aluminum) to improve heat dissipation and reduce weight
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Disc brake rotor size: 180 mm
With external engagement locking ring (180mm SE)
Main advantages
Quiet and stable braking even on the longest and steepest descents
Less thermal deformation: reduces the risk of vibrations or noises
Consistent performance thanks to excellent heat dissipation
Quick assembly and compatible with Center Lock systems
Premium aesthetics and technology derived from Shimano's top range
Ideal for:
High-performance road cycling
Gravel, endurance, and competitions
Mountain bikes or e-MTBs with high thermal control requirements
Cyclists seeking quietness and reliability on every route
