TRA CODE:L-5S,SIZE:21.00-25,37.5-39,45/65-45 Specially designed tire with extra deep tread for underground mining pared with L-4S underground mining tire,the tread is much deeper and more superior in resistance to cut,wear and puncture and offer a longer tire life.Also reduce the hard work from frequent tire changing.But the heat-resistance is not good as L-4S.More suited for short haul and low speed operations.