The EnduCombi RD OS drive tire from Apollo Tires is a long-wearing regional open-shoulder drive tire for commercial vehicles. It features zig-zag grooves and block aids for even load distribution, as well as deep, 3D sipes for traction. The staggered blocks include tie bars in the shoulder to improve each block's rigidity, while the tire's overall construction comes with an optimized belt package for multiple retreads. The EnduCombi RD OS comes in sizes 11R22.5, 295/75R22.5, and 11R24.5.