Wilwood's Forged Billet Dynalite Internal Caliper is the strongest caliper in the class, with weights starting at 3.00 pounds. The process of stress-flow forging re-aligns the metal's grain structure within the contour of the caliper body. This process eliminates the breaks and interruptions to the internal grain structure that occur when machining a straight block billet. The radial transition design eliminates steps and shoulders in the area between the piston housing body and the caliper bridges, substantially increasing resistance to deflection and caliper separation under load in the incorporated radius. Structural deflection and volume displacement tests have proven the Wilwood Forged Dynalite Internal Calipers to outperform all existing styles of this popular caliper size.