A disc brake rotor is a component that mounts to the hub of a bicycle wheel and provides the braking surface in a disc brake system. Disc brake rotors come in a wide variety of sizes to suit different ...
The rotors they have been opting for are the Shimano RT-MT900 rotors from the brand's mountain-bike-focussed XTR range. This is instead of the SM-RT900 rotors that come part of the road-focussed ...