Shimano RT-CL800

Center Lock is Shimano’s proprietary mounting standard that uses a splined interface and a lockring rather than the traditional six-bolt pattern. It allows for faster, more precise installation and removal using a standard cassette lockring tool.

The RT-CL800 is compatible with most modern hydraulic and mechanical disc brake systems, provided your wheelset supports the Center Lock mounting standard. Always verify that your frame and fork have clearance for a 180mm rotor before purchasing.

This technology uses a multi-layer sandwich construction—stainless steel outer layers with an aluminum core—to dissipate heat rapidly. By managing thermal buildup, it prevents brake fade on long descents and keeps your stopping power consistent.

While it is optimized for the demands of gravel riding, where sustained braking and vibration management are critical, it is equally effective for road or mountain bikes that utilize Center Lock hubs and require a 180mm rotor.

Yes, the reinforced arm structure increases the rotor's rigidity, which helps minimize the harmonic vibrations that often cause brake squeal. This results in a noticeably quieter and more stable braking experience under load.