Specifications of the front hub:

Brand: Sturmey Archer

Model: X-FDD 6V-3.0W Dynamo

Color: Silver

Number of spoke holes: 36

Type of brake: Drum Brake 70 MM

Type of axle: Fixed axle

Axle included: Yes, with nuts

Type of bearings: Industrial bearings

Weight (GR): 1220

Intended use: City


Data for spoke length calculations using the Sapim spoke size calculator:

Total length of the hub (MM): 100

Non-gear side (MM): 20

Gear side (MM): 19

Hub diameter non-gear side (MM): 89

Hub diameter gear side (MM): 89

Link to spoke calculator: www.sapim.be/spoke-calculator