Shimano GRX RT-CL800 S - 140mm | CenterLock
What Is the Shimano GRX RT-CL800 140mm Rotor Designed For?
The RT-CL800-S 140mm is a centerlock disc brake rotor from Shimano's GRX gravel groupset, designed to pair with GRX hydraulic brake calipers on gravel and adventure road bikes that run 140mm rotor mounts. The rotor uses Shimano's ICE Technologies Freeza construction, a three-layer aluminum and stainless steel sandwich that dissipates heat more efficiently than a single-material rotor by wicking thermal energy away from the braking surface and into the aluminum core. This matters on gravel bikes where long descents on loaded setups with resin pads can push rotors into heat ranges that cause brake fade without adequate dissipation.
The centerlock interface uses a standard Shimano lockring and is compatible with all centerlock-equipped hubs. The rotor features Freeza fins on the rotor body that further enhance airflow-based cooling while the bike is moving, reducing operating temperatures under sustained braking loads. At 140mm, this is the smaller of the two common sizes for flat-mount gravel frames, and it is typically used on rear mounts or on lighter riders using front mounts designed for 140mm direct. For frames specifying an adapter for larger rotors, the 160mm version is available separately. The RT-CL800 line is a direct upgrade over previous Shimano gravel rotors in the heat management category, making it the correct rotor choice for any GRX disc brake build where sustained performance under load is a priority.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Shimano GRX RT-CL800 S - 140mm | CenterLock
Shimano GRX RT-CL800 S - 140mm | CenterLock
What Is the Shimano GRX RT-CL800 140mm Rotor Designed For?
The RT-CL800-S 140mm is a centerlock disc brake rotor from Shimano's GRX gravel groupset, designed to pair with GRX hydraulic brake calipers on gravel and adventure road bikes that run 140mm rotor mounts. The rotor uses Shimano's ICE Technologies Freeza construction, a three-layer aluminum and stainless steel sandwich that dissipates heat more efficiently than a single-material rotor by wicking thermal energy away from the braking surface and into the aluminum core. This matters on gravel bikes where long descents on loaded setups with resin pads can push rotors into heat ranges that cause brake fade without adequate dissipation.
The centerlock interface uses a standard Shimano lockring and is compatible with all centerlock-equipped hubs. The rotor features Freeza fins on the rotor body that further enhance airflow-based cooling while the bike is moving, reducing operating temperatures under sustained braking loads. At 140mm, this is the smaller of the two common sizes for flat-mount gravel frames, and it is typically used on rear mounts or on lighter riders using front mounts designed for 140mm direct. For frames specifying an adapter for larger rotors, the 160mm version is available separately. The RT-CL800 line is a direct upgrade over previous Shimano gravel rotors in the heat management category, making it the correct rotor choice for any GRX disc brake build where sustained performance under load is a priority.
Original: $63.99
-70%$63.99
$19.20Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
What Is the Shimano GRX RT-CL800 140mm Rotor Designed For?
The RT-CL800-S 140mm is a centerlock disc brake rotor from Shimano's GRX gravel groupset, designed to pair with GRX hydraulic brake calipers on gravel and adventure road bikes that run 140mm rotor mounts. The rotor uses Shimano's ICE Technologies Freeza construction, a three-layer aluminum and stainless steel sandwich that dissipates heat more efficiently than a single-material rotor by wicking thermal energy away from the braking surface and into the aluminum core. This matters on gravel bikes where long descents on loaded setups with resin pads can push rotors into heat ranges that cause brake fade without adequate dissipation.
The centerlock interface uses a standard Shimano lockring and is compatible with all centerlock-equipped hubs. The rotor features Freeza fins on the rotor body that further enhance airflow-based cooling while the bike is moving, reducing operating temperatures under sustained braking loads. At 140mm, this is the smaller of the two common sizes for flat-mount gravel frames, and it is typically used on rear mounts or on lighter riders using front mounts designed for 140mm direct. For frames specifying an adapter for larger rotors, the 160mm version is available separately. The RT-CL800 line is a direct upgrade over previous Shimano gravel rotors in the heat management category, making it the correct rotor choice for any GRX disc brake build where sustained performance under load is a priority.
