Description
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 ratio range, activated by SHIMANO DI2 electronic shifting, and an improved internal structure for better gear engagement. It is approved for use with and without E-BIKE. Features: Improved internal structure for better gear engagement Smooth shifting performance Better performance for both e-bike and regular bikes Product specifications: Model number: SG-S7051-11 Series: ALFINE S7050/S705 Series Color: Black Average weight: 1665 grams Brake type: Bolt-on CENTER LOCK disc brake Rear gears: 11 Gear ratio|Total: 409% Gear ratio|1: 0.527 Gear ratio|2: 0.681 Gear ratio|3: 0.770 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: Yes Shifting assist mechanism: Yes Shifting POWER MODULATOR: Yes Drive efficiency: High Over Locknut Dimension (mm): 135 Spoke gauge: #13/#14 Spoke holes: 36 H Axle length (mm)|187: Yes 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 BCD Left/Right (mm): 92.6
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