NOTE: ERTRO 451

Rim Specifications:

Brand: Rigida - Ryde

Model: Andra 20

Color: Black

Size (Inch/MM):  20" / 451

External width (MM): 24,5

Internal width (MM): 18

Weight (GR): 534

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

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

Internal diameter of the rim (MM *Not ERD*): 412

Rim thickness (MM): 3

Number of spokes in the wheel: 36

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