产品规格
| 型号 | SM-RT900 |
|---|---|
| 系列 | DURA-ACE R9100 系列 |
| Average weight | 118 g (160 mm) 100 g (140 mm) |
| Ice technology | X |
| Ice technology Freeza(Radiator fin) | X |
| Alloy lock ring | X |
| CENTER LOCK | X |
| Outside diameter_140mm | X |
| Outside diameter_160mm | X |
| Pad compatibility_Metal | X |
| Pad compatibility_Resin | X |
