7-speed rear derailleur and FREEHUB compatibility C-817
| Type of rear derailleur | Type of compatible derailleur hanger and dropout | Free unit type of FREEHUB | |
|---|---|---|---|
| HG spline S | HG spline M | ||
| Direct attachment compatible  |  | ✔ | ✔ |
| Riveted adapter (BMX-track type) compatible  |  | ✔ | - |
| Riveted adapter (ROAD type) compatible  |  | ✔ | - |