Shimano Gear hub 8 Speed ​​Alfine DI2 SG-S7051 For Disc brake 36 holes Black

Shimano Alfine - Di2 internal following gear - Center Lock - Disc brake - O.L.D. 135 mm-11 speeds The Shimano Alfine S7051-NAF offers a wide range of gearing range of 409%, activated by Shimano Di2 electronic circuit, and an improved internal structure for better tooth ripening. It is approved for use with and without e-bike. Features:

Improved internal structure for better switching on

Flexible switching performance

Better performance for both e-bike and regular bicycles Product specifications:

Model number: SG-S7051-11

Series: Alfine S7050/S705 Series

Color: Black

Average weight: 1665 grams

REM type: Bolt confirmation Center Lock Disc brake

Gears behind: 11

Transmission ratio | Total: 409%

Transmission ratio | 1: 0.527

Transmission ratio | 2: 0.681

Transmission ratio | 3: 0.770

Transmission ratio | 4: 0.878

Transmission ratio | 5: 0.995

Transmission ratio | 6: 1,134

Transmission ratio | 7: 1,292

Transmission ratio | 8: 1,462

Transmission ratio | 9: 1,667

Transmission ratio | 10: 1,888

Transmission ratio | 11: 2,153

Switch structure: Tue2

Silent coupling: Yes

Switching Mechanism: Yes

Switch Power Modulator: Yes

Drive efficiency: high

Fork distance (mm): 135

Size Spaak: #13/ #14

Spaakgat: 36 g

Length ash (mm) | 187: Yes

Flens distance (mm): 57.3

Flange diameter (mm): 104.3

Flens width (mm) | Right: 3.2

Flens width (mm) | Left: 3.2

Offset (mm): 3.15

BCD Left/Right (mm): 92.6