Shimano RT-CL800 Center Lock Disc Brake Rotor - 140mm

Compact Ice Tech Freeza Rotor for Rear Road and Gravel

The 140mm RT-CL800 is the smaller sibling of the 160mm CL800 — same Ice Technologies Freeza sandwich construction, same stiffened arm design for quieter braking, same 1.5mm thickness and included internal-serration Center Lock lockring. At 140mm it's the size most road and gravel bikes run on the rear, where you want heat control without the extra rotating weight of a larger rotor.

Use it with Shimano hydraulic road and gravel calipers (Ultegra, GRX and compatible), resin or metallic pads, and a Center Lock hub. If your frame or fork specifies a 140mm maximum, this is the CL800 that fits.

Whether you're matching a new Ultegra or GRX brake install, replacing a glazed rear rotor, or building a road/gravel bike with 160mm front and 140mm rear, the RT-CL800 SS keeps rear braking quiet and consistent.

Shimano was founded in 1921 by Shozaburo Shimano in Sakai, Japan, and the company is still based there today. More than a century later, it's one of the biggest names in cycling components. Ice Technologies Freeza is Shimano's heat-management rotor design used across Ultegra, GRX and compatible road and gravel brake systems.