Or as low as 
Shimano XT MT800 Ice-Tec Centrelock Rotor
Shimano XT MT800 disc rotor’s are compact, lightweight and feature rapid heat dissipation thanks to Shimano’s Ice Tec Freeza heat management system.
Features
- New disc brake rotor construction boosts heat dissipation and reduces fade
- Easy disc brake rotor installation with spline mount and lock ring
- Advanced heat sync design reduces brake fade
