Hub spacing:    
Rear (MM):    135
Handmade or machine made:    Handmade
Spoke pattern:    2 Cross
Total weight (GR):    2755

Rim Specifications:
Brand: Rigida - Ryde
Model: Dutch 19
Color: black
Size (Inch/MM): 28" / 622 
External width (MM): 24
Internal width (MM): 19
External high (MM): 30
Weight (GR): 633
Material: Aluminium
Single-walled / Double-walled: Double-walled
Single eyelets / Double eyelets: No eyelets
Number of spoke holes: 36
Spoke nipple size: 14
Brake surface present: No

Specifications of the rear hub:
Brand: Shimano
Model: Nexus Inter 8 SG-C6001-8D
Color: Silver
Number of spoke holes: 36GTS
Type of brake: Disc (Centerlock)
Number of gears: 8S
Type of axle: Fixed axle 187 MM
Axle included: Yes, without nuts
Type of bearings: Ball bearings
Average weight (GR): 1743
Intended use: City

Specifications of the spokes:    
Brand:    Sapim
Model:    Leader
Color:    Black
Material:    Stainless steel
Spoke thickness:    14G
Specifications of the spoke nipples:    
Brand:    Sapim
Color:    Silver
Material:    Brass