SHIMANO ALFINE - DI2 Internal Geared Rear Hub - CENTER LOCK - Disc Brake - O.L.D. 135 mm - 11-speed
The SHIMANO ALFINE S7051 hub offers a wide 409% gear range actuated by SHIMANO DI2 electronic shifting and an improved internal structure for better gear engagement. It is approved for E-BIKE and non E-BIKE use and is available in black and silver.
FEATURES
- Improved internal structure for better gear engagement
- Smooth shifting performance
- Improved performance for both E-BIKE and non-E-BIKE usage
PRODUCT SPECIFICATIONS
| MODEL NO | SG-S7051-11 |
|---|---|
| SERIES | ALFINE S7050/S705 Series |
| Color | Silver | Black |
| Average weight | 1665 |
| Remarks | . |
|---|---|
| Brake type|Mount type | CENTER LOCK disc brake |
| Rear speeds | 11 |
| Gear ratio|Total | 409% |
| Gear ratio|1 | 0.527 |
| Gear ratio|2 | 0.681 |
| Gear ratio|3 | 0.77 |
| Gear ratio|4 | 0.878 |
| Gear ratio|5 | 0.995 |
| Gear ratio|6 | 1.134 |
| Gear ratio|7 | 1.292 |
| Gear ratio|8 | 1.462 |
| Gear ratio|9 | 1.667 |
| Gear ratio|10 | 1.888 |
| Gear ratio|11 | 2.153 |
| Shifting structure | Di2 |
| Silent clutch | ✔ |
| Gear change support mechanism | ✔ |
| Shifting POWER MODULATOR | ✔ |
| Driving efficiency | HIGH |
| O.L.D. (mm) | 135 |
| Spoke size | #13/#14 |
| Spoke hole|28H | ✔ |
| Spoke hole|32H | ✔ |
| Spoke hole|36H | ✔ |
| Axle length (mm)|187 | ✔ |
| Flange distance (mm) | 57.3 |
| Flange diameter (mm) | 104.3 |
| Flange width (mm)|Right | 3.2 |
| Flange width (mm)|Left | 3.2 |
| Offset (mm) | 3.15 |
| P.C.D. left / right (mm) | 92.6 |
