Treaded Lite Wheel 4"Details: This is a Du Bro 4" Treaded Lite Wheel, with a Tire Width of 1. 150 in (29. 21mm). Large Scale Treaded Lightweight wheels are substantially lighter than other aircraft wheels available. These lightweight wheels feature a foam interior yet have a tough and rugged exterior skin for durability. Excellent for paved runways! Hubs come with 3 16 in (5mm) axle diameter opening and can be drilled out to 1 4 in (6mm).