Billet Hub, Aluminum, 3/4 in. Bore, 1/2 in. Thick, 3/16 in. Keyway, 3-Hole on 1.680 in. Bolt Circle, (P5248 Pattern)
Split Billet Aluminum Clamp-on Engine Hub. Has a 1″ Dia. raised shoulder around the bore. Four (4) Socket Head Cap Screws, 1/4-28 x 5/8″, included.