Modular two-ply tire with directional side plies

摘要

A tire carcass is disclosed herein which includes a first ply (20) with shoulder portions and lateral edge portions, each of the lateral edge portions being wrapped around a bead core (12), a center line (54), a carcass crown portion (14), the carcass crown portion having a first edge (16) and a second edge (16'), and a non-continuous second ply (18, 34), the second ply having a right side (18) extending from approximately the first edge of the carcass crown portion, and extending approximately around the first bead core and a left side (34) extending from approximately the second edge of the carcass crown portion, and extending approximately around the second bead core, wherein at least one side of the second radial ply is at an angle of less than approximately 85° with respect to the center line (54).