Rear Derailleur
| | Dura-Ace | Ultegra | 105SC | RX100 | RSX | 300EX |
| Feature | RD-7700 | RD-6500 | RD-1056 | RD-A551 | RD-A410 | RD-HG50 |
| Pulley Cage | SS | SS / GS | SS / GS | S / GS | SS / GS | SS |
| Speed | 8 / 9 speed | 8 / 9 speed | 8 speed | 8 speed | 7 speed | 7 speed |
| 11T Pulley | X | X | | | | |
| Stainless steel nut & bolt | X | X | | | | |
| Front diff. | 14T | 14T / 22T | 13T / 22T | 13T / 22T | 13T / 20T | 13T |
| Total Capacity | 26T | 29T / 35T | 28T / 35T | 28T / 35T | 28T / 36T | 28T |
| Max rear sprocket | 27T | 28T / 26T | 28T / 26T | 28T / 26T | 28T | 28T |
| Min Rear sprocket | 11T | 11T | 12T / 11T | 12T / 11T | 11T | 12T |
| Riveted adaptor available | | | | | | X |
| Adaptor for direct attachment | | | X | X | X | X |
| Direct Attachment | X | X | X | X | X | X |
| Bracket Body | Aluminum /anodized | Aluminum /Clear Coated | Aluminum /Painted | Aluminum /Barrel | Aluminum /Painted | Aluminum /Barrel |
| Plate Body | Aluminum /anodized | Aluminum /Clear Coated | Aluminum /Painted | Aluminum /Barrel | Aluminum /Painted | Resin |
| Outer Link | Aluminum /anodized | Aluminum /Clear Coated | Aluminum /Painted | Aluminum /Barrel | Steel /Chrome Plated | Steel /Resin cover |
| Inner Link | Aluminum /anodized | Aluminum /Barrel | Steel /Pearl Bright | Steel /Pearl Bright | Steel /Painted | Steel /Zinc plated |
| Outer Plate | Aluminum /anodized | Aluminum /anodized | Aluminum /Barrel | Steel /Pearl Bright | Steel /Pearl Bright | Steel /Pearl Bright |
| Inner Plate | Aluminum /anodized | Aluminum /Barrel | Steel /Pearl Bright | Steel /Pearl Bright | Steel /Black Painted | Steel /Zinc plated |
