This page is designed for comparisons and will be best viewed on a wide screen.
| Series | Dura-Ace | Ultegra | 105SC | RX100 | RSX | 300EX |
|---|---|---|---|---|---|---|
| Feature | FH-7700 | FH-6500 | FH-1056 | FH-A551 | FH-A410 | FH-HG50 |
| Spoke Holes | 24, 28, 32, 36 | 28, 32, 36 | 32, 36 | 32, 36 | 32, 36 | 32, 36 |
| Hole PCD (mm) | 45 | 45 | 45 | 45 | 45 | 45 |
| Freehub Body | 8/9 speed, 11T compatible | 8/9 speed, 11T compatible | 8 speed | 8 speed | 7 speed | 7 speed |
| O.L.D. (mm) | 130 | 130 | 130 | 130 | 130/126 | 126 |
| Axle (mm) | 141 (QR) | 141 (QR) | 141 (QR) | 141 (QR) | 141/137 (QR) | 137 (QR) |
| Seal | Hub and Freewheel | Hub and Freewheel | Hub and Freewheel | Hub and Freewheel | Hub and Freewheel | Hub and Freewheel |
| Hub Shell | Aluminum /Anodized | Aluminum /Anodized | Aluminum /Anodized | Aluminum /Anodized | Aluminum /Anodized | Aluminum /Anodized |
| Quick Release lever | Aluminum /Anodized | Aluminum /Anodized | Aluminum /Anodized | Aluminum /Anodized | Aluminum /Anodized | Aluminum /Anodized |
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