Shimano RT-MT800 Ultegra/GRX/XT Center Lock Brake Rotor with External Lock Ring

The Shimano RT-MT800 brake disc is a Center Lock rotor for anyone looking to replace or install a disc on their bike. It comes with an external-tooth lockring, so you have everything you need to secure it to the hub.

• Fits Shimano Center Lock hubs and hubs compatible with Center Lock
• External-tooth lockring included, for thru-axles 15 mm and larger
• Two-piece disc: aluminum core between two layers of stainless steel
• Works with organic or sintered pads, so you can choose whichever you prefer
• Choose a diameter between 140 mm and 180 mm to match your current disc

Technical specifications

• Diameter: 140 mm, 180 mm
• Lockring type: External teeth
• Hub mount: Center Lock
• Material: Stainless steel and aluminum, two-piece disc with an aluminum core between two layers of stainless steel
• Compatible pads: Organic or sintered
• Hub compatibility: External lockring for thru-axles Ø 15 mm and larger; may also be required for some 12 mm thru-axles
• Model code: IRTMT800ME
• Package contents: 1 RT-MT800 disc; 1 external-tooth lockring