- Carbon pulley plate | Lightweight & rigid
- Wide gear-ratio compatible | 28T cog max capacity
- Wide Link Design | Increases shifting precision
Strong, sleek and innovative, the new Dura-Ace 7900 rear derailleur features Carbon Composite upgrades and is compatible with wide gear ratios.
Features
Specifications
| Model Number | RD-7900 |
| Series | DURA-ACE |
| Cassette Compatibility | 10-speed |
| Maximum Sprocket | 28T |
| Minimum Sprocket | 11T |
| Maximum Front Difference | 16T |
| Total Capacity | 33T |
| Guide Pulley | sealed bearing |
| Tension Pulley | sealed bearing |
| Bracket Body | cold forged aluminum/anodized |
| Bracket Pivot Seal | double O-rings |
| Plate Body | engineered plastic/painted |
| Plate Pivot Seal | single O-ring |
| Outer Link | cold forged aluminum/anodized |
| Inner Link | cold forged aluminum/anodized |
| Link Pin Bushings | fluorine coated (4) |
| Outer Plate | carbon |
| Inner Plate | carbon |
| Average Weight | 166g |