Specifications of the front hub:
Brand: Shutter Precision
Model: PV-8 Dynamo 6V-3.0W
Color: Black
Number of spoke holes: 32GTS
Type of brake: Rim brake
Type of axle: Drop axle
Axle included: No
Type of bearings: Ball bearings
Average weight (GR): 399
Intended use: MTB - Tour

Data for spoke length calculations using the Sapim spoke size calculator:
Total length of the hub (MM): 100
Non-gear side (MM): 25
Gear side (MM): 25
Hub diameter non-gear side (MM): 52
Hub diameter gear side (MM): 52

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