PBI .750in Offset Transmission Sprocket - 24T 302-24CNC machined from a premium nickel, chromoly steel (8620), case hardened and finished with an electroless nickel plating for corrosion wear resistance and lubricity Sprockets are drilled and tapped to accommodate late model lock plate, PART #TPR 100, available separately Will also fit 86 93 Big Twin models with use of OEM #33344 94 (spacer), OEM #12067A (seal) and OEM #11165 (O ring) Offset measurement is taken from the face that rests against the