Shimano RT-CL800 Ice Tech Freeza Disc Brake RotorSpecifically developed for the demands of gravel adventure riding, this hydraulic disc brake rotor comes equipped with a robust build with performance-enhancing technologies for consistent braking on every ride. Focusing on decreasing disc brake rotor heat deformation, this model is kitted out Shimano's Ice Technologies Freeza construction that provides maximum stopping power without sacrificing weight or heat dissipation. Another benefit is its quieter operation thanks to its strong alloy carrier and optimised arm shape, which reduces heat deformation of the rotor during hard braking. This leads to more accurate braking and quieter functioning from this rotor, so you can focus on the road and the descent ahead.Proprietary 3-Layer ConstructionAn extra layer of heat protection, Ice Technologies Freeza rotor construction uses a proprietary three-layer sandwich design with an exposed radiator fin. Together with the heat-dissipating paint, Freeza rotors deliver supercooling forces for even more reliable braking performance and lighter operation under all conditions. Ice Technologies Freeza rotors provide consistent braking performance with longer pad life, less brake fade and noise.Centre Lock SystemThe Centre Lock System makes an easy rotor installation possible with a spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.Features: Rotor Material: Stainless Steel and Aluminium Lockring Material: Aluminium Finish: Heat dissipation paint Use: Road, Gravel Brake Type: Hydraulic Disc Brake Mount Type: Centre Lock Pad Compatibility: Metal / Resin Technologies: Ice Technologies Freeza 140 degrees C Overall Heat Reduction 10% longer pad life (When compared to stainless steel rotors) Weight: 140mm Option: 96g; 160mm Option: 114gManufacturer's Part Numbers: RTCL800SI Black 160mm RTCL800SSI Black 140mmA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.