Rim Specifications:

Brand: Rigida - Ryde   

Model: ZAC 19  

Color: Silver

Size (Inch/MM): 26" / 559

External width (MM): 24

Internal width (MM): 19

Weight (GR): 520

Material: Aluminium

Single-walled / Double-walled: Double-walled

Single eyelets / Double eyelets: Single eyelets

Number of spoke holes: 32

Brake surface present: Yes
 

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

Internal diameter of the rim (MM *Not ERD*): 534

Rim thickness (MM): 2

Number of spokes in the wheel: 32

Number of crossings gear side: of your choice

Number of crossing non-gear side: of your choice

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