The Forged Billet Dynalite Internal-Dust Seal is the further enhancement of the venerable Forged Dynalite series calipers. Designed with a single split bridge and spacer less design to enhance strength and appearance. These latest applied developments and innovations in caliper design and manufacturing processes have resulted in substantial improvements in strength and performance over all comparable models. This new spacer-less design of the Forged Dynalite series of calipers, makes this the stiffest and most visual pleasing design so far. Now with The addition of Wilwood’s exclusive wiper dust seal allows these calipers to be used in areas that may mandate environmental sealing.