Shimano RT-CL800 Center Lock Brake Rotor

High-performance braking for road, gravel, and MTB applications.

The RT-CL800 is engineered for Ultegra BR-R8170 road bike disc brakes and GRX gravel brakes, while also offering broad compatibility with numerous MTB calipers. Its innovative design delivers reliable braking performance, superior heat management, and minimal noise.

Key Features

• Ice-Tech FREEZA Sandwich Construction – Aluminum layer between two stainless steel layers for rapid heat dissipation.

• Enhanced Heat Control – Ice-Tech fins reduce rotor temperature by up to 50°C, improving braking force durability by 20% and extending pad life by 20%.

• Optimized Design – Low-noise and lightweight construction without compromising performance.

• Lockring Compatibility – Anodized aluminum lockring with internal teeth for 9/10 mm quick release and 12 mm thru-axle setups. For 15 mm or 20 mm thru-axles, use the SM-HB20 lockring.

• Finish – Painted spider with polished rotor for a professional appearance.

• Pad Compatibility – Designed for use with narrow pad-shaped brake pads.

Experience reliable, powerful braking on long descents and demanding terrain with Shimano’s RT-CL800 rotor.