Depth gauge wheel 15″ x 4.5″. Solid spoked centre hub for better trash clearance with a reliable 5203KYY2 bearing. To suit models with 16mm axle. Long lasting rubber with re-enforced lip. Suits various planter models includingÂ but not limited to maxi-merge & Case, Abati, John Deere 1590. Proven quality Buco brand that has been tried & tested extensively on the Serafin range of products.