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

The Shimano RT-MT800 brake rotor is a Center Lock rotor for anyone replacing or fitting a rotor on their bike. It comes with an externally splined lockring, so you have everything needed to secure it to the hub.

• Fits Shimano Center Lock and Center Lock-compatible hubs
• Externally splined lockring included, for thru-axles of 15 mm and above
• Two-component rotor: aluminium core between two layers of stainless steel
• Works with organic or sintered brake pads, so you can choose your preference
• Choose between 140 mm and 180 mm diameters based on your current rotor

Technical specifications

• Diameter: 140 mm, 180 mm
• Lockring type: External splines
• Hub mount: Center Lock
• Material: Stainless steel and aluminium, two-component rotor with an aluminium core between two layers of stainless steel
• Compatible brake pads: Organic or sintered
• Hub compatibility: External lockring for thru-axles of 15 mm Ø and above; may also be required for some 12 mm thru-axles
• Model code: IRTMT800ME
• Package contents: 1 RT-MT800 rotor; 1 externally splined lockring

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.