Shimano Center Lock RT CL900 Disc Brake Rotor

Shimano Center Lock RT CL900 Disc Brake Rotor

The Shimano RT-CL900 is a flagship disc brake rotor engineered to minimize heat-induced deformation while delivering exceptionally quiet braking performance — without compromising weight or heat dissipation. Designed for demanding riding conditions, it provides consistent and reliable braking even on long, steep descents.

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Key Benefits

• Quieter Than Ever Braking Performance
  Outstanding heat dissipation ensures smooth, stable, and silent braking on extended descents.

• Reinforced Arm Design
  The newly developed, more robust arm structure reduces vibration and brake noise for quieter operation.

• Heat Dissipation Paint
  Specialized heat-dissipating coating enhances braking performance under high temperatures.

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Core Technologies

ICE TECHNOLOGIES FREEZA

• Three-layer construction: Stainless Steel / Aluminum / Stainless Steel

• The inner aluminum layer extends inward with a wide, exposed radiator fin

• Effectively reduces heat buildup and improves cooling efficiency

3D Aluminum Carrier

• Optimized 3D-shaped aluminum carrier designed in every dimension

• Achieves lightweight construction with exceptional resistance to heat distortion

• Prevents rotor deformation caused by high temperatures

CENTER LOCK System

• Spline-mount design with lock ring

• Allows quick, secure, and easy rotor installation

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Specifications

• Rotor Sizes: 140 mm / 160 mm

• Mount Type: CENTER LOCK ✔

• ICE TECHNOLOGIES: ✔

• ICE TECHNOLOGIES FREEZA: ✔

• FREEZA with Heat Dissipation Paint: ✔

• Pad Compatibility: Narrow type

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Average Weight

• 140 mm: 97 g

• 160 mm: 114 g