- Highest Shimano internal hub efficiency
- Double roller clutch engagement for smoother, quiester shifting
- Center Lock rotor mount
The inter-8 hub has increased its gear ratio to 307%, compared to 244% of the Inter-7 hub. The Inter-8 hub also incorporates a closer gear ratio allowing a more efficient and comfortable pedaling cadence. A trully "all conditions" internal hub has arrived.
Features
Specifications
| Model Number | SG-S501 |
| Series | ALFINE |
| Speeds | 8-speed |
| Silent Clutch | Yes |
| Gear Change Support | |
| Shifting Power Modulator | Yes |
| Driving Efficiency | High |
| Shifting Lever | SL-S500 |
| Coaster Brake | - |
| Roller Brake Compatible | - |
| Dust Cap for V-Brake | |
| Disc Brake Rotor Mount | Yes |
| Hub Shell Material | |
| Hub Shell Finish | |
| Gear Ratio Total Difference | 307% |
| Gear Ratio 1 | 0.527 |
| Gear Ratio 2 | 0.644 |
| Gear Ratio 3 | 0.748 |
| Gear Ratio 4 | 0.851 |
| Gear Ratio 5 | 1 |
| Gear Ratio 6 | 1.223 |
| Gear Ratio 7 | 1.419 |
| Gear Ratio 8 | 1.615 |
| Gear Ratio 9 | |
| Gear Ratio 10 | |
| Gear Ratio 11 | |
| Axle Length | 135mm |
| Over Locknut | 187mm |
| Spoke Holes | 32, 36H |
| Spoke Size | 92.6mm |
| Sprocket Options | 16, 18, 19, 20, 21, 22, 23T (16T: for Outward assembling only) |
| Chain Line | 41.8mm |
| Cassette Joint | CJ-8S20, CJ-8S40 |
| Average Weight | |
| Flange Distance (mm) | |
| Spoke Hole PCD (mm) | |
| Flange Diameter (mm) | |
| Flange Width (mm) | |
| Sprocket Thickness (mm) | |
| Chain Size | |
| Shimano Recommended Chain | |
| Dishing Distance (mm) | |
| Shifting Switch | |
| Motor Unit | |
| Note |