Shimano GRX RT-CL800 S - 160mm | Center Lock
What Is the Shimano GRX RT-CL800 160mm Rotor Designed For?
The RT-CL800-S 160mm is a centerlock disc brake rotor from Shimano's GRX gravel groupset, built for gravel and adventure road bikes using 160mm flat-mount or post-mount front setups. Like all RT-CL800 rotors, it uses Shimano's ICE Technologies Freeza construction, a three-layer bonded sandwich of aluminum and stainless steel that moves heat away from the pad contact surface during sustained braking. The Freeza designation indicates the addition of fins on the rotor body itself, which increase surface area and enhance convective cooling as air flows across the rotor while riding. The result is meaningfully lower operating temperatures under conditions where a standard single-material rotor would begin to heat-soak.
At 160mm, this is the most common size for front mounts on gravel and endurance road frames, and it is the standard fitment for most GRX flat-mount front caliper configurations. The centerlock interface requires a standard Shimano lockring tool for installation and is compatible with all centerlock-equipped hubs from any brand. This rotor pairs directly with the BR-RX810, BR-R9170, BR-R8070, and other Shimano hydraulic flat-mount calipers. A lockring is included. For riders building a complete GRX disc brake system or replacing a worn front rotor, the RT-CL800 160mm is the correct specification for the majority of gravel and road disc builds using centerlock hubs.
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Shimano GRX RT-CL800 S - 160mm | Center Lock
Shimano GRX RT-CL800 S - 160mm | Center Lock
What Is the Shimano GRX RT-CL800 160mm Rotor Designed For?
The RT-CL800-S 160mm is a centerlock disc brake rotor from Shimano's GRX gravel groupset, built for gravel and adventure road bikes using 160mm flat-mount or post-mount front setups. Like all RT-CL800 rotors, it uses Shimano's ICE Technologies Freeza construction, a three-layer bonded sandwich of aluminum and stainless steel that moves heat away from the pad contact surface during sustained braking. The Freeza designation indicates the addition of fins on the rotor body itself, which increase surface area and enhance convective cooling as air flows across the rotor while riding. The result is meaningfully lower operating temperatures under conditions where a standard single-material rotor would begin to heat-soak.
At 160mm, this is the most common size for front mounts on gravel and endurance road frames, and it is the standard fitment for most GRX flat-mount front caliper configurations. The centerlock interface requires a standard Shimano lockring tool for installation and is compatible with all centerlock-equipped hubs from any brand. This rotor pairs directly with the BR-RX810, BR-R9170, BR-R8070, and other Shimano hydraulic flat-mount calipers. A lockring is included. For riders building a complete GRX disc brake system or replacing a worn front rotor, the RT-CL800 160mm is the correct specification for the majority of gravel and road disc builds using centerlock hubs.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
What Is the Shimano GRX RT-CL800 160mm Rotor Designed For?
The RT-CL800-S 160mm is a centerlock disc brake rotor from Shimano's GRX gravel groupset, built for gravel and adventure road bikes using 160mm flat-mount or post-mount front setups. Like all RT-CL800 rotors, it uses Shimano's ICE Technologies Freeza construction, a three-layer bonded sandwich of aluminum and stainless steel that moves heat away from the pad contact surface during sustained braking. The Freeza designation indicates the addition of fins on the rotor body itself, which increase surface area and enhance convective cooling as air flows across the rotor while riding. The result is meaningfully lower operating temperatures under conditions where a standard single-material rotor would begin to heat-soak.
At 160mm, this is the most common size for front mounts on gravel and endurance road frames, and it is the standard fitment for most GRX flat-mount front caliper configurations. The centerlock interface requires a standard Shimano lockring tool for installation and is compatible with all centerlock-equipped hubs from any brand. This rotor pairs directly with the BR-RX810, BR-R9170, BR-R8070, and other Shimano hydraulic flat-mount calipers. A lockring is included. For riders building a complete GRX disc brake system or replacing a worn front rotor, the RT-CL800 160mm is the correct specification for the majority of gravel and road disc builds using centerlock hubs.
