20” x 1 1/8” - 1 3/8"
A= Internal Diameter (when eyelets, then eyelets to eyelets): 
B= Rim Thickness (when eyelet, includes eyelet): 
C= ERD: 424,2mm
 
20” x 1.75"
A= Internal Diameter (when eyelets, then eyelets to eyelets): 
B= Rim Thickness (when eyelet, includes eyelet): 
C= ERD: 387,6mm
 
24” x 1.75"
A= Internal Diameter (When eyelets, then eyelets to eyelets): 
B= Rim Thickness (when eyelet, includes eyelet): 
C= ERD: 487,6mm