This Outer Chainring can only be used with Shimano Dura-Ace FC-7800 10spd Double Chainsets with a 50-39T set up.
SPECS:
| Teeth | 50 |
| Groupset | Dura-Ace |
| Series | 7800 |
| Type | Outer |
| PCD | 130mm 5-Arm |
| Speed | 10 |
| Weight | 94 grams |
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