- New rotor design increases rigidity to extend pad life
- Multiple diameter options to suit any riding style
- SM-RT97S: 160mm
- SM-RT97M: 180mm
- SM-RT97L: 203mm
- SM-RT97SS: 140mm (rear only)

The new XTR rotors use Shimano's patented Center Lock technology and receive a new star pattern. The new rotor also aids in improved pad life. Multiple rotor sizes are available for a variety of riding styles.
Features
Specifications
| Model Number | SM-RT97M |
| Series | XTR |
| Disc Rotor Mount | Center Lock |
| Outside Diameter | 180mm |
| Average Weight | 162g |
| Note |
