Shimano Ultegra GRX Deore XT RT-CL800 Freeza Centerlock Brake Rotor with External Lock Ring

The Shimano RT-CL800 brake rotor has a Center Lock mount and is designed for riders with disc brake bikes who want braking that dissipates heat effectively. It comes in three diameters.

• Center Lock mounting, with an externally splined lockring included
• Two-piece construction with a stainless steel and aluminium sandwich
• Ice Technologies Freeza cooling to manage heat under braking
• Works with resin or metal brake pads
• Choose a diameter of 160, 180 or 203 mm to suit your frame and fork

Technical specifications

• Available diameters: 160, 180, 203 mm
• Mount: Center Lock
• Lockring: Externally splined lockring, included
• Construction: Two-piece, stainless steel and aluminium sandwich
• Cooling: Ice Technologies Freeza
• Brake pads: Resin or metal
• Manufacturer code: 160 mm IRTCL800SE, 180 mm IRTCL800ME, 203 mm IRTCL800LE

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.