The Daily Grind front hub guard is made from 4140 chromoly for maximum strength and won't deform like plastic or aluminum guards after heavy grind use. Designed to replace the existing press-fit hardware on your Daily Grind front hub, but includes spacers to fit a wide variety of hubs such as the Cinema VX, Kink Boulevard, BSD Front Street, Shadow Raptor, Subrosa Posi-Trac and Primo N4FL V2. (4 oz)