The Hi-Run SU12 2-ply turf 15x6.00-6nhs lawn mower tires arrives factory-mounted on a puncture-proof 6x4.5 solid steel rim featuring a built-in zerk grease fitting and 3/4 metal bushings for long-term lubrication and silent rotation. Its closely spaced rounded shoulder block design with 5.7/32 tread depth maximizes lawn protection while providing responsive steering and enhanced side-hill grip. Rated at 570 lbs at 30 PSI with zero air maintenance required this lawn mower tires 15x6.00 6 serves as a direct bolt-on replacement for mowers and ZTRs.