AZ-1137 all aluminum ballburnished finish, split rim wheels have bead biting edges to prevent slipping, 3.75″ – 3 bolt pattern with 3/4″ id tapered roller bearing. 5″ tire size, 3.12″ bead width, maximum width 3.7″, wheel diameter 6″, hub width 2.90″, total weight 2.4 lbs.