Specifications of the front hub:
Brand: Shimano
Model: HB-RM65
Color: Black
Number of spoke holes: 32GTS
Type of brake: Disc (Centerlock)
Type of axle: Drop axle
Axle included: Yes, quick release
Type of bearings: Ball bearings
Average weight (GR): 183
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): 15
Hub diameter non-gear side (MM): 44
Hub diameter gear side (MM): 44

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