Specifications of the rear hub:
Brand: UZR
Color: Zwart
Number of spoke holes: 24GTS
Type of brake: Rim brake
Number of gears: HG Body 35 MM = suitable for old type Race (max 10 speed) and all MTB cassettes.
Type of axle: Drop axle
Axle included: NO
Average weight (GR): 279
Intended use: Race

Data for spoke length calculations using the Sapim spoke size calculator:
Total length of the hub (MM): 130
Non-gear side (MM): 24
Gear side (MM): 48
Hub diameter non-gear side (MM): 58
Hub diameter gear side (MM): 58

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