Shimano Ultegra Grx Deore XT RT-CL800 Ice Technologies Freeza Centerlock Disc (External Lock Ring)

Quieter control on any terrain

Thanks to the special focus on reducing thermal deformation of the rotor, the new disc brake rotor is quieter than ever, without sacrificing lightness or heat dissipation.

Features

• Unprecedented quietness, yet superb and consistent braking performance on any long, steep descent, thanks to excellent heat dissipation.
• The new arm shape is more robust and offers quieter operation.

Technical specifications

• Model: RT-CL800
• Series: GRX 11-speed
• Center Lock
• Ice Technologies
• Ice Technologies Freeza

Technologies

3D aluminum disc carrier
The 3D-shaped optimized aluminum carrier is specifically designed for each individual size, achieving lightness and outstanding resistance to thermal deformation.
This prevents thermal deformation across the entire disc surface and reduces rubbing noises during riding.

Ice Technologies Freeza
Ice Technologies Freeza ensures consistent braking performance with less efficiency loss, reduced noise, and longer pad life.

Center Lock
The Center Lock system enables simplified rotor installation with spline and lock ring. The lock ring mounting system reduces total labor hours and installation and removal times. Additionally, the solid fixation via spline enhances precision and stiffness while increasing braking efficiency.