WELD Racing Delta-1 Rear Drag Wheels are the lightest, stiffest, and strongest 16x16'' double beadlock wheels available. The Delta-1 features WELD Racing's revolutionary 1-piece rear drag wheel design. Delta-1s are forged from 6061-T6 aluminum for added strength and minimal weight. WELD Racing Delta-1s are available for Pro-Mod, Pro-Stock and Top-Fuel applications.