The Shimano RT-CL900 180 mm disc brake rotor uses Ice Technologies Freeza to dissipate heat. Its steel–aluminum–steel braking track is compatible with resin and metal pads.
| Feature | Specification |
|---|---|
| Diameter | 180 mm |
| Mount | Center Lock |
| Nominal thickness | 1.75 mm |
| Pads | Resin or metal, narrow pad shape |
| Included | Center Lock lockring |