Description A= Internal Diameter (when eyelets, then eyelets to eyelets): 384,4mm B= Rim Thickness (when eyelet, includes eyelet): 30mm C= ERD: 444,4mm 20” x 1.75″ OS A= Internal Diameter (when eyelets, then eyelets to eyelets): 428,4mm B= Rim Thickness (when eyelet, includes eyelet): 30mm C= ERD: 488,4mm
